diff options
| author | Roland Sahlsten <Roland.Sahlsten.ASE10@fh-joanneum.at> | 2011-05-24 21:02:43 +0000 |
|---|---|---|
| committer | Roland Sahlsten <Roland.Sahlsten.ASE10@fh-joanneum.at> | 2011-05-24 21:02:43 +0000 |
| commit | 89ee198a04df6e0fee2f7bbad39a99798f9d7afa (patch) | |
| tree | a2256f178f3888c23c8e026144c52c77ef096295 /software/mpu | |
| parent | CS should include 0xAA of each frame (diff) | |
First version of MainProcessingUnit mpu.
git-svn-id: https://svn.spreadspace.org/mur.sat@27 7de4ea59-55d0-425e-a1af-a3118ea81d4c
Diffstat (limited to 'software/mpu')
| -rw-r--r-- | software/mpu/.cproject | 885 | ||||
| -rw-r--r-- | software/mpu/.project | 82 | ||||
| -rw-r--r-- | software/mpu/Debug/makefile | 55 | ||||
| -rw-r--r-- | software/mpu/src/cam/cam.c | 8 | ||||
| -rw-r--r-- | software/mpu/src/cam/cam.h | 12 | ||||
| -rw-r--r-- | software/mpu/src/cr_startup_lpc13.c | 359 | ||||
| -rw-r--r-- | software/mpu/src/gpio/gpio.c | 378 | ||||
| -rw-r--r-- | software/mpu/src/gpio/gpio.h | 66 | ||||
| -rw-r--r-- | software/mpu/src/lightsens/lightsens.c | 8 | ||||
| -rw-r--r-- | software/mpu/src/lightsens/lightsens.h | 12 | ||||
| -rw-r--r-- | software/mpu/src/mpu_main.c | 74 | ||||
| -rw-r--r-- | software/mpu/src/ssp/ssp.c | 224 | ||||
| -rw-r--r-- | software/mpu/src/ssp/ssp.h | 109 | ||||
| -rw-r--r-- | software/mpu/src/ssp/ssptest.c | 190 | ||||
| -rw-r--r-- | software/mpu/src/uart/uart.c | 189 | ||||
| -rw-r--r-- | software/mpu/src/uart/uart.h | 55 |
16 files changed, 2706 insertions, 0 deletions
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+<projectStorage><?xml version="1.0" encoding="UTF-8"?> +<TargetConfig> +<Properties property_0="" property_1="" property_2="" property_3="NXP" property_4="LPC1343" property_count="5" version="1"/> +<infoList vendor="NXP"> +<info chip="LPC1343" match_id="0x3d00002b" name="LPC1343" stub="crt_emu_lpc11_13_nxp"> +<chip> +<name>LPC1343</name> +<family>LPC13xx</family> +<vendor>NXP (formerly Philips)</vendor> +<reset board="None" core="Real" sys="Real"/> +<clock changeable="TRUE" freq="12MHz" is_accurate="TRUE"/> +<memory can_program="true" id="Flash" is_ro="true" type="Flash"/> +<memory id="RAM" type="RAM"/> +<memory id="Periph" is_volatile="true" type="Peripheral"/> +<memoryInstance derived_from="Flash" id="MFlash32" location="0x00000000" size="0x8000"/> +<memoryInstance derived_from="RAM" id="RamLoc8" location="0x10000000" size="0x2000"/> +<prog_flash blocksz="0x1000" location="0" maxprgbuff="0x1000" progwithcode="TRUE" size="0x8000"/> +<peripheralInstance derived_from="LPC17_NVIC" determined="infoFile" id="NVIC" location="0xE000E000"/> +<peripheralInstance derived_from="LPC11_13_TIMER32" determined="infoFile" id="TIMER0" location="0x40014000"/> +<peripheralInstance derived_from="LPC11_13_TIMER32" determined="infoFile" id="TIMER1" location="0x40018000"/> +<peripheralInstance derived_from="LPC1xxx_UART_MODEM" determined="infoFile" id="UART0" location="0x40008000"/> +<peripheralInstance derived_from="LPC11_13_SSP" determined="infoFile" id="SSP" location="0x40040000"/> +<peripheralInstance derived_from="LPC11_13_ADC" determined="infoFile" id="ADC" location="0x4001c000"/> +<peripheralInstance derived_from="LPC11_13_I2C" determined="infoFile" id="I2C0" location="0x40000000"/> +<peripheralInstance derived_from="CM3_DCR" determined="infoFile" id="DCR" location="0xE000EDF0"/> +<peripheralInstance derived_from="LPC13_SYSCTL" determined="infoFile" id="SYSCTL" location="0x40048000"/> +<peripheralInstance derived_from="LPC11_13_PMU" determined="infoFile" id="PMU" location="0x40038000"/> +<peripheralInstance derived_from="LPC11_13_IOCON" determined="infoFile" id="IOCON" location="0x40044000"/> +<peripheralInstance derived_from="LPC11_13_GPIO" determined="infoFile" id="GPIO0" location="0x50000000"/> +<peripheralInstance derived_from="LPC11_13_GPIO" determined="infoFile" id="GPIO1" location="0x50010000"/> +<peripheralInstance derived_from="LPC11_13_GPIO" determined="infoFile" id="GPIO2" location="0x50020000"/> +<peripheralInstance derived_from="LPC11_13_GPIO" determined="infoFile" id="GPIO3" location="0x50030000"/> +<peripheralInstance derived_from="LPC11_13_TIMER16" determined="infoFile" id="TMR160" location="0x4000c000"/> +<peripheralInstance derived_from="LPC11_13_TIMER16" determined="infoFile" id="TMR161" location="0x40010000"/> +<peripheralInstance derived_from="LPC11_13_USBDEV" determined="infoFile" id="USB" location="0x40020000"/> +<peripheralInstance derived_from="LPC11_13_WDT" determined="infoFile" id="WDT" location="0x40004000"/> +</chip> +<processor> +<name gcc_name="cortex-m3">Cortex-M3</name> +<family>Cortex-M</family> +</processor> +<link href="nxp_lpc11_13_peripheral.xme" show="embed" type="simple"/> +</info> +</infoList> +</TargetConfig></projectStorage> +</storageModule> +</cproject> diff --git a/software/mpu/.project b/software/mpu/.project new file mode 100644 index 0000000..28fde1f --- /dev/null +++ b/software/mpu/.project @@ -0,0 +1,82 @@ +<?xml version="1.0" encoding="UTF-8"?> +<projectDescription> + <name>mpu</name> + <comment></comment> + <projects> + <project>CMSISv1p30_LPC13xx</project> + </projects> + <buildSpec> + <buildCommand> + <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name> + <triggers>clean,full,incremental,</triggers> + <arguments> + <dictionary> + <key>?name?</key> + <value></value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.append_environment</key> + <value>true</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.autoBuildTarget</key> + <value>all</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.buildArguments</key> + <value></value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.buildCommand</key> + <value>make</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.buildLocation</key> + <value>${workspace_loc:/mpu/Debug}</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.cleanBuildTarget</key> + <value>clean</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.contents</key> + <value>org.eclipse.cdt.make.core.activeConfigSettings</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.enableAutoBuild</key> + <value>false</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.enableCleanBuild</key> + <value>true</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.enableFullBuild</key> + <value>true</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.fullBuildTarget</key> + <value>all</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.stopOnError</key> + <value>true</value> + </dictionary> + <dictionary> + <key>org.eclipse.cdt.make.core.useDefaultBuildCmd</key> + <value>true</value> + </dictionary> + </arguments> + </buildCommand> + <buildCommand> + <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name> + <arguments> + </arguments> + </buildCommand> + </buildSpec> + <natures> + <nature>org.eclipse.cdt.core.cnature</nature> + <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature> + <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature> + </natures> +</projectDescription> diff --git a/software/mpu/Debug/makefile b/software/mpu/Debug/makefile new file mode 100644 index 0000000..00df9a2 --- /dev/null +++ b/software/mpu/Debug/makefile @@ -0,0 +1,55 @@ +################################################################################
+# Automatically-generated file. Do not edit!
+################################################################################
+
+-include ../makefile.init
+
+RM := rm -rf
+
+# All of the sources participating in the build are defined here
+-include sources.mk
+-include subdir.mk
+-include src/uart/subdir.mk
+-include src/ssp/subdir.mk
+-include src/subdir.mk
+-include src/lightsens/subdir.mk
+-include src/gpio/subdir.mk
+-include src/cam/subdir.mk
+-include objects.mk
+
+ifneq ($(MAKECMDGOALS),clean)
+ifneq ($(strip $(C_DEPS)),)
+-include $(C_DEPS)
+endif
+endif
+
+-include ../makefile.defs
+
+# Add inputs and outputs from these tool invocations to the build variables
+
+# All Target
+all: mpu.axf
+
+# Tool invocations
+mpu.axf: $(OBJS) $(USER_OBJS)
+ @echo 'Building target: $@'
+ @echo 'Invoking: MCU Linker'
+ arm-none-eabi-gcc -nostdlib -L"D:\Data\FH\8.Semester\MurSat\workspace\CMSISv1p30_LPC13xx\Debug" -Xlinker --gc-sections -Xlinker -Map=mpu.map -mcpu=cortex-m3 -mthumb -T "mpu_Debug.ld" -o"mpu.axf" $(OBJS) $(USER_OBJS) $(LIBS)
+ @echo 'Finished building target: $@'
+ @echo ' '
+ $(MAKE) --no-print-directory post-build
+
+# Other Targets
+clean:
+ -$(RM) $(OBJS)$(C_DEPS)$(EXECUTABLES) mpu.axf
+ -@echo ' '
+
+post-build:
+ -@echo 'Performing post-build steps'
+ -arm-none-eabi-size mpu.axf; # arm-none-eabi-objcopy -O ihex mpu.axf mpu.hex ;
+ -@echo ' '
+
+.PHONY: all clean dependents
+.SECONDARY: post-build
+
+-include ../makefile.targets
diff --git a/software/mpu/src/cam/cam.c b/software/mpu/src/cam/cam.c new file mode 100644 index 0000000..076e3e4 --- /dev/null +++ b/software/mpu/src/cam/cam.c @@ -0,0 +1,8 @@ +/*
+ * cam.c
+ *
+ * Created on: 24.05.2011
+ * Author: Roland
+ */
+
+#include "cam.h"
diff --git a/software/mpu/src/cam/cam.h b/software/mpu/src/cam/cam.h new file mode 100644 index 0000000..6d2525c --- /dev/null +++ b/software/mpu/src/cam/cam.h @@ -0,0 +1,12 @@ +/*
+ * cam.h
+ *
+ * Created on: 24.05.2011
+ * Author: Roland
+ */
+
+#ifndef CAM_H_
+#define CAM_H_
+
+
+#endif /* CAM_H_ */
diff --git a/software/mpu/src/cr_startup_lpc13.c b/software/mpu/src/cr_startup_lpc13.c new file mode 100644 index 0000000..a749437 --- /dev/null +++ b/software/mpu/src/cr_startup_lpc13.c @@ -0,0 +1,359 @@ +//*****************************************************************************
+// +--+
+// | ++----+
+// +-++ |
+// | |
+// +-+--+ |
+// | +--+--+
+// +----+ Copyright (c) 2009 Code Red Technologies Ltd.
+//
+// Microcontroller Startup code for use with Red Suite
+//
+// Software License Agreement
+//
+// The software is owned by Code Red Technologies and/or its suppliers, and is
+// protected under applicable copyright laws. All rights are reserved. Any
+// use in violation of the foregoing restrictions may subject the user to criminal
+// sanctions under applicable laws, as well as to civil liability for the breach
+// of the terms and conditions of this license.
+//
+// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
+// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
+// CODE RED TECHNOLOGIES LTD.
+//
+//*****************************************************************************
+#define WEAK __attribute__ ((weak))
+#define ALIAS(f) __attribute__ ((weak, alias (#f)))
+
+// Code Red - if CMSIS is being used, then SystemInit() routine
+// will be called by startup code rather than in application's main()
+#ifdef __USE_CMSIS
+#include "system_LPC13xx.h"
+#endif
+
+//*****************************************************************************
+//
+// Forward declaration of the default handlers. These are aliased.
+// When the application defines a handler (with the same name), this will
+// automatically take precedence over these weak definitions
+//
+//*****************************************************************************
+ void Reset_Handler(void);
+ void ResetISR(void) ALIAS(Reset_Handler);
+WEAK void NMI_Handler(void);
+WEAK void HardFault_Handler(void);
+WEAK void MemManage_Handler(void);
+WEAK void BusFault_Handler(void);
+WEAK void UsageFault_Handler(void);
+WEAK void SVCall_Handler(void);
+WEAK void DebugMon_Handler(void);
+WEAK void PendSV_Handler(void);
+WEAK void SysTick_Handler(void);
+
+//*****************************************************************************
+//
+// Forward declaration of the specific IRQ handlers. These are aliased
+// to the IntDefaultHandler, which is a 'forever' loop. When the application
+// defines a handler (with the same name), this will automatically take
+// precedence over these weak definitions
+//
+//*****************************************************************************
+
+void I2C_IRQHandler (void) ALIAS(IntDefaultHandler);
+void TIMER16_0_IRQHandler (void) ALIAS(IntDefaultHandler);
+void TIMER16_1_IRQHandler (void) ALIAS(IntDefaultHandler);
+void TIMER32_0_IRQHandler (void) ALIAS(IntDefaultHandler);
+void TIMER32_1_IRQHandler (void) ALIAS(IntDefaultHandler);
+void SSP_IRQHandler (void) ALIAS(IntDefaultHandler);
+void UART_IRQHandler (void) ALIAS(IntDefaultHandler);
+void USB_IRQHandler (void) ALIAS(IntDefaultHandler);
+void USB_FIQHandler (void) ALIAS(IntDefaultHandler);
+void ADC_IRQHandler (void) ALIAS(IntDefaultHandler);
+void WDT_IRQHandler (void) ALIAS(IntDefaultHandler);
+void BOD_IRQHandler (void) ALIAS(IntDefaultHandler);
+void FMC_IRQHandler (void) ALIAS(IntDefaultHandler);
+void PIOINT3_IRQHandler (void) ALIAS(IntDefaultHandler);
+void PIOINT2_IRQHandler (void) ALIAS(IntDefaultHandler);
+void PIOINT1_IRQHandler (void) ALIAS(IntDefaultHandler);
+void PIOINT0_IRQHandler (void) ALIAS(IntDefaultHandler);
+void WAKEUP_IRQHandler (void) ALIAS(IntDefaultHandler);
+
+//*****************************************************************************
+//
+// The entry point for the application.
+// __main() is the entry point for redlib based applications
+// main() is the entry point for newlib based applications
+//
+//*****************************************************************************
+extern WEAK void __main(void);
+extern WEAK void main(void);
+//*****************************************************************************
+//
+// External declaration for the pointer to the stack top from the Linker Script
+//
+//*****************************************************************************
+extern void _vStackTop;
+
+//*****************************************************************************
+//
+// The vector table. Note that the proper constructs must be placed on this to
+// ensure that it ends up at physical address 0x0000.0000.
+//
+//*****************************************************************************
+__attribute__ ((section(".isr_vector")))
+void (* const g_pfnVectors[])(void) =
+{
+ // Core Level - CM3
+ (void *)&_vStackTop, // The initial stack pointer
+ Reset_Handler, // The reset handler
+ NMI_Handler, // The NMI handler
+ HardFault_Handler, // The hard fault handler
+ MemManage_Handler, // The MPU fault handler
+ BusFault_Handler, // The bus fault handler
+ UsageFault_Handler, // The usage fault handler
+ 0, // Reserved
+ 0, // Reserved
+ 0, // Reserved
+ 0, // Reserved
+ SVCall_Handler, // SVCall handler
+ DebugMon_Handler, // Debug monitor handler
+ 0, // Reserved
+ PendSV_Handler, // The PendSV handler
+ SysTick_Handler, // The SysTick handler
+
+
+
+ // Wakeup sources (40 ea.) for the I/O pins:
+ // PIO0 (0:11)
+ // PIO1 (0:11)
+ // PIO2 (0:11)
+ // PIO3 (0:3)
+ WAKEUP_IRQHandler, // PIO0_0 Wakeup
+ WAKEUP_IRQHandler, // PIO0_1 Wakeup
+ WAKEUP_IRQHandler, // PIO0_2 Wakeup
+ WAKEUP_IRQHandler, // PIO0_3 Wakeup
+ WAKEUP_IRQHandler, // PIO0_4 Wakeup
+ WAKEUP_IRQHandler, // PIO0_5 Wakeup
+ WAKEUP_IRQHandler, // PIO0_6 Wakeup
+ WAKEUP_IRQHandler, // PIO0_7 Wakeup
+ WAKEUP_IRQHandler, // PIO0_8 Wakeup
+ WAKEUP_IRQHandler, // PIO0_9 Wakeup
+ WAKEUP_IRQHandler, // PIO0_10 Wakeup
+ WAKEUP_IRQHandler, // PIO0_11 Wakeup
+
+ WAKEUP_IRQHandler, // PIO1_0 Wakeup
+ WAKEUP_IRQHandler, // PIO1_1 Wakeup
+ WAKEUP_IRQHandler, // PIO1_2 Wakeup
+ WAKEUP_IRQHandler, // PIO1_3 Wakeup
+ WAKEUP_IRQHandler, // PIO1_4 Wakeup
+ WAKEUP_IRQHandler, // PIO1_5 Wakeup
+ WAKEUP_IRQHandler, // PIO1_6 Wakeup
+ WAKEUP_IRQHandler, // PIO1_7 Wakeup
+ WAKEUP_IRQHandler, // PIO1_8 Wakeup
+ WAKEUP_IRQHandler, // PIO1_9 Wakeup
+ WAKEUP_IRQHandler, // PIO1_10 Wakeup
+ WAKEUP_IRQHandler, // PIO1_11 Wakeup
+
+ WAKEUP_IRQHandler, // PIO2_0 Wakeup
+ WAKEUP_IRQHandler, // PIO2_1 Wakeup
+ WAKEUP_IRQHandler, // PIO2_2 Wakeup
+ WAKEUP_IRQHandler, // PIO2_3 Wakeup
+ WAKEUP_IRQHandler, // PIO2_4 Wakeup
+ WAKEUP_IRQHandler, // PIO2_5 Wakeup
+ WAKEUP_IRQHandler, // PIO2_6 Wakeup
+ WAKEUP_IRQHandler, // PIO2_7 Wakeup
+ WAKEUP_IRQHandler, // PIO2_8 Wakeup
+ WAKEUP_IRQHandler, // PIO2_9 Wakeup
+ WAKEUP_IRQHandler, // PIO2_10 Wakeup
+ WAKEUP_IRQHandler, // PIO2_11 Wakeup
+
+ WAKEUP_IRQHandler, // PIO3_0 Wakeup
+ WAKEUP_IRQHandler, // PIO3_1 Wakeup
+ WAKEUP_IRQHandler, // PIO3_2 Wakeup
+ WAKEUP_IRQHandler, // PIO3_3 Wakeup
+
+ I2C_IRQHandler, // I2C0
+ TIMER16_0_IRQHandler, // CT16B0 (16-bit Timer 0)
+ TIMER16_1_IRQHandler, // CT16B1 (16-bit Timer 1)
+ TIMER32_0_IRQHandler, // CT32B0 (32-bit Timer 0)
+ TIMER32_1_IRQHandler, // CT32B1 (32-bit Timer 1)
+ SSP_IRQHandler, // SSP0
+ UART_IRQHandler, // UART0
+
+ USB_IRQHandler, // USB IRQ
+ USB_FIQHandler, // USB FIQ
+
+ ADC_IRQHandler, // ADC (A/D Converter)
+ WDT_IRQHandler, // WDT (Watchdog Timer)
+ BOD_IRQHandler, // BOD (Brownout Detect)
+ FMC_IRQHandler, // Flash (IP2111 Flash Memory Controller)
+ PIOINT3_IRQHandler, // PIO INT3
+ PIOINT2_IRQHandler, // PIO INT2
+ PIOINT1_IRQHandler, // PIO INT1
+ PIOINT0_IRQHandler, // PIO INT0
+
+};
+
+//*****************************************************************************
+//
+// The following are constructs created by the linker, indicating where the
+// the "data" and "bss" segments reside in memory. The initializers for the
+// for the "data" segment resides immediately following the "text" segment.
+//
+//*****************************************************************************
+extern unsigned long _etext;
+extern unsigned long _data;
+extern unsigned long _edata;
+extern unsigned long _bss;
+extern unsigned long _ebss;
+
+//*****************************************************************************
+//
+// This is the code that gets called when the processor first starts execution
+// following a reset event. Only the absolutely necessary set is performed,
+// after which the application supplied entry() routine is called. Any fancy
+// actions (such as making decisions based on the reset cause register, and
+// resetting the bits in that register) are left solely in the hands of the
+// application.
+//
+//*****************************************************************************
+void
+//ResetISR(void)
+Reset_Handler(void)
+{
+ unsigned long *pulSrc, *pulDest;
+
+ //
+ // Copy the data segment initializers from flash to SRAM.
+ //
+ pulSrc = &_etext;
+ for(pulDest = &_data; pulDest < &_edata; )
+ {
+ *pulDest++ = *pulSrc++;
+ }
+
+ //
+ // Zero fill the bss segment. This is done with inline assembly since this
+ // will clear the value of pulDest if it is not kept in a register.
+ //
+ __asm(" ldr r0, =_bss\n"
+ " ldr r1, =_ebss\n"
+ " mov r2, #0\n"
+ " .thumb_func\n"
+ "zero_loop:\n"
+ " cmp r0, r1\n"
+ " it lt\n"
+ " strlt r2, [r0], #4\n"
+ " blt zero_loop");
+
+#ifdef __USE_CMSIS
+ SystemInit();
+#endif
+
+ //
+ // Call the application's entry point.
+ // __main() is the entry point for redlib based applications (which calls main())
+ // main() is the entry point for newlib based applications
+ //
+ if (__main)
+ __main() ;
+ else
+ main() ;
+
+ //
+ // main() shouldn't return, but if it does, we'll just enter an infinite loop
+ //
+ while (1) {
+ ;
+ }
+}
+
+//*****************************************************************************
+//
+// This is the code that gets called when the processor receives a NMI. This
+// simply enters an infinite loop, preserving the system state for examination
+// by a debugger.
+//
+//*****************************************************************************
+void NMI_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void HardFault_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void MemManage_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void BusFault_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void UsageFault_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void SVCall_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void DebugMon_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void PendSV_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+void SysTick_Handler(void)
+{
+ while(1)
+ {
+ }
+}
+
+//*****************************************************************************
+//
+// Processor ends up here if an unexpected interrupt occurs or a handler
+// is not present in the application code.
+//
+//*****************************************************************************
+
+static void IntDefaultHandler(void)
+{
+ //
+ // Go into an infinite loop.
+ //
+ while(1)
+ {
+ }
+}
diff --git a/software/mpu/src/gpio/gpio.c b/software/mpu/src/gpio/gpio.c new file mode 100644 index 0000000..84eee75 --- /dev/null +++ b/software/mpu/src/gpio/gpio.c @@ -0,0 +1,378 @@ +/*****************************************************************************
+ * gpio.c: GPIO C file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.07.20 ver 1.00 Preliminary version, first Release
+ * 2009.12.09 ver 1.05 Mod to use mask registers for GPIO writes + inlining (.h)
+ *
+*****************************************************************************/
+#include "LPC13xx.h" /* LPC13xx Peripheral Registers */
+#include "gpio.h"
+
+/* ===================
+ * CodeRed - Modified file to extract out interrupt handler related code,
+ * which is really application project specific.
+ * Set TIMER16_GENERIC_INTS to 1 to reenable original code.
+ * =================== */
+//#define GPIO_GENERIC_INTS 1
+
+#ifdef GPIO_GENERIC_INTS
+volatile uint32_t gpio0_counter = 0;
+volatile uint32_t gpio1_counter = 0;
+volatile uint32_t gpio2_counter = 0;
+volatile uint32_t gpio3_counter = 0;
+volatile uint32_t p0_1_counter = 0;
+volatile uint32_t p1_1_counter = 0;
+volatile uint32_t p2_1_counter = 0;
+volatile uint32_t p3_1_counter = 0;
+
+/*****************************************************************************
+** Function name: PIOINT0_IRQHandler
+**
+** Descriptions: Use one GPIO pin(port0 pin1) as interrupt source
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void PIOINT0_IRQHandler(void)
+{
+ uint32_t regVal;
+
+ gpio0_counter++;
+ regVal = GPIOIntStatus( PORT0, 1 );
+ if ( regVal )
+ {
+ p0_1_counter++;
+ GPIOIntClear( PORT0, 1 );
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: PIOINT1_IRQHandler
+**
+** Descriptions: Use one GPIO pin(port1 pin1) as interrupt source
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void PIOINT1_IRQHandler(void)
+{
+ uint32_t regVal;
+
+ gpio1_counter++;
+ regVal = GPIOIntStatus( PORT1, 1 );
+ if ( regVal )
+ {
+ p1_1_counter++;
+ GPIOIntClear( PORT1, 1 );
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: PIOINT2_IRQHandler
+**
+** Descriptions: Use one GPIO pin(port2 pin1) as interrupt source
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void PIOINT2_IRQHandler(void)
+{
+ uint32_t regVal;
+
+ gpio2_counter++;
+ regVal = GPIOIntStatus( PORT2, 1 );
+ if ( regVal )
+ {
+ p2_1_counter++;
+ GPIOIntClear( PORT2, 1 );
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: PIOINT3_IRQHandler
+**
+** Descriptions: Use one GPIO pin(port3 pin1) as interrupt source
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void PIOINT3_IRQHandler(void)
+{
+ uint32_t regVal;
+
+ gpio3_counter++;
+ regVal = GPIOIntStatus( PORT3, 1 );
+ if ( regVal )
+ {
+ p3_1_counter++;
+ GPIOIntClear( PORT3, 1 );
+ }
+ return;
+}
+#endif //GPIO_GENERIC_INTS
+
+/*****************************************************************************
+** Function name: GPIOInit
+**
+** Descriptions: Initialize GPIO, install the
+** GPIO interrupt handler
+**
+** parameters: None
+** Returned value: true or false, return false if the VIC table
+** is full and GPIO interrupt handler can be
+** installed.
+**
+*****************************************************************************/
+void GPIOInit( void )
+{
+ /* Enable AHB clock to the GPIO domain. */
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
+
+#ifdef __JTAG_DISABLED
+ LPC_IOCON->JTAG_TDO_PIO1_1 &= ~0x07;
+ LPC_IOCON->JTAG_TDO_PIO1_1 |= 0x01;
+#endif
+
+ /* Set up NVIC when I/O pins are configured as external interrupts. */
+ NVIC_EnableIRQ(EINT0_IRQn);
+ NVIC_EnableIRQ(EINT1_IRQn);
+ NVIC_EnableIRQ(EINT2_IRQn);
+ NVIC_EnableIRQ(EINT3_IRQn);
+ return;
+}
+
+/*****************************************************************************
+** Function name: GPIOSetInterrupt
+**
+** Descriptions: Set interrupt sense, event, etc.
+** edge or level, 0 is edge, 1 is level
+** single or double edge, 0 is single, 1 is double
+** active high or low, etc.
+**
+** parameters: port num, bit position, sense, single/doube, polarity
+** Returned value: None
+**
+*****************************************************************************/
+void GPIOSetInterrupt( uint32_t portNum, uint32_t bitPosi, uint32_t sense,
+ uint32_t single, uint32_t event )
+{
+ switch ( portNum )
+ {
+ case PORT0:
+ if ( sense == 0 )
+ {
+ LPC_GPIO0->IS &= ~(0x1<<bitPosi);
+ /* single or double only applies when sense is 0(edge trigger). */
+ if ( single == 0 )
+ LPC_GPIO0->IBE &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO0->IBE |= (0x1<<bitPosi);
+ }
+ else
+ LPC_GPIO0->IS |= (0x1<<bitPosi);
+ if ( event == 0 )
+ LPC_GPIO0->IEV &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO0->IEV |= (0x1<<bitPosi);
+ break;
+ case PORT1:
+ if ( sense == 0 )
+ {
+ LPC_GPIO1->IS &= ~(0x1<<bitPosi);
+ /* single or double only applies when sense is 0(edge trigger). */
+ if ( single == 0 )
+ LPC_GPIO1->IBE &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO1->IBE |= (0x1<<bitPosi);
+ }
+ else
+ LPC_GPIO1->IS |= (0x1<<bitPosi);
+ if ( event == 0 )
+ LPC_GPIO1->IEV &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO1->IEV |= (0x1<<bitPosi);
+ break;
+ case PORT2:
+ if ( sense == 0 )
+ {
+ LPC_GPIO2->IS &= ~(0x1<<bitPosi);
+ /* single or double only applies when sense is 0(edge trigger). */
+ if ( single == 0 )
+ LPC_GPIO2->IBE &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO2->IBE |= (0x1<<bitPosi);
+ }
+ else
+ LPC_GPIO2->IS |= (0x1<<bitPosi);
+ if ( event == 0 )
+ LPC_GPIO2->IEV &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO2->IEV |= (0x1<<bitPosi);
+ break;
+ case PORT3:
+ if ( sense == 0 )
+ {
+ LPC_GPIO3->IS &= ~(0x1<<bitPosi);
+ /* single or double only applies when sense is 0(edge trigger). */
+ if ( single == 0 )
+ LPC_GPIO3->IBE &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO3->IBE |= (0x1<<bitPosi);
+ }
+ else
+ LPC_GPIO3->IS |= (0x1<<bitPosi);
+ if ( event == 0 )
+ LPC_GPIO3->IEV &= ~(0x1<<bitPosi);
+ else
+ LPC_GPIO3->IEV |= (0x1<<bitPosi);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: GPIOIntEnable
+**
+** Descriptions: Enable Interrupt Mask for a port pin.
+**
+** parameters: port num, bit position
+** Returned value: None
+**
+*****************************************************************************/
+void GPIOIntEnable( uint32_t portNum, uint32_t bitPosi )
+{
+ switch ( portNum )
+ {
+ case PORT0:
+ LPC_GPIO0->IE |= (0x1<<bitPosi);
+ break;
+ case PORT1:
+ LPC_GPIO1->IE |= (0x1<<bitPosi);
+ break;
+ case PORT2:
+ LPC_GPIO2->IE |= (0x1<<bitPosi);
+ break;
+ case PORT3:
+ LPC_GPIO3->IE |= (0x1<<bitPosi);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: GPIOIntDisable
+**
+** Descriptions: Disable Interrupt Mask for a port pin.
+**
+** parameters: port num, bit position
+** Returned value: None
+**
+*****************************************************************************/
+void GPIOIntDisable( uint32_t portNum, uint32_t bitPosi )
+{
+ switch ( portNum )
+ {
+ case PORT0:
+ LPC_GPIO0->IE &= ~(0x1<<bitPosi);
+ break;
+ case PORT1:
+ LPC_GPIO1->IE &= ~(0x1<<bitPosi);
+ break;
+ case PORT2:
+ LPC_GPIO2->IE &= ~(0x1<<bitPosi);
+ break;
+ case PORT3:
+ LPC_GPIO3->IE &= ~(0x1<<bitPosi);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: GPIOIntStatus
+**
+** Descriptions: Get Interrupt status for a port pin.
+**
+** parameters: port num, bit position
+** Returned value: None
+**
+*****************************************************************************/
+uint32_t GPIOIntStatus( uint32_t portNum, uint32_t bitPosi )
+{
+ uint32_t regVal = 0;
+
+ switch ( portNum )
+ {
+ case PORT0:
+ if ( LPC_GPIO0->MIS & (0x1<<bitPosi) )
+ regVal = 1;
+ break;
+ case PORT1:
+ if ( LPC_GPIO1->MIS & (0x1<<bitPosi) )
+ regVal = 1;
+ break;
+ case PORT2:
+ if ( LPC_GPIO2->MIS & (0x1<<bitPosi) )
+ regVal = 1;
+ break;
+ case PORT3:
+ if ( LPC_GPIO3->MIS & (0x1<<bitPosi) )
+ regVal = 1;
+ break;
+ default:
+ break;
+ }
+ return ( regVal );
+}
+
+/*****************************************************************************
+** Function name: GPIOIntClear
+**
+** Descriptions: Clear Interrupt for a port pin.
+**
+** parameters: port num, bit position
+** Returned value: None
+**
+*****************************************************************************/
+void GPIOIntClear( uint32_t portNum, uint32_t bitPosi )
+{
+ switch ( portNum )
+ {
+ case PORT0:
+ LPC_GPIO0->IC |= (0x1<<bitPosi);
+ break;
+ case PORT1:
+ LPC_GPIO1->IC |= (0x1<<bitPosi);
+ break;
+ case PORT2:
+ LPC_GPIO2->IC |= (0x1<<bitPosi);
+ break;
+ case PORT3:
+ LPC_GPIO3->IC |= (0x1<<bitPosi);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+/******************************************************************************
+** End Of File
+******************************************************************************/
diff --git a/software/mpu/src/gpio/gpio.h b/software/mpu/src/gpio/gpio.h new file mode 100644 index 0000000..e56e07e --- /dev/null +++ b/software/mpu/src/gpio/gpio.h @@ -0,0 +1,66 @@ +/*****************************************************************************
+ * gpio.h: Header file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.09.01 ver 1.00 Preliminary version, first Release
+ * 2009.12.09 ver 1.05 Mod to use mask registers for GPIO writes + inlining (.h)
+ *
+******************************************************************************/
+#ifndef __GPIO_H
+#define __GPIO_H
+
+#define PORT0 0
+#define PORT1 1
+#define PORT2 2
+#define PORT3 3
+
+void GPIO_IRQHandler(void);
+void GPIOInit( void );
+void GPIOSetInterrupt( uint32_t portNum, uint32_t bitPosi, uint32_t sense,
+ uint32_t single, uint32_t event );
+void GPIOIntEnable( uint32_t portNum, uint32_t bitPosi );
+void GPIOIntDisable( uint32_t portNum, uint32_t bitPosi );
+uint32_t GPIOIntStatus( uint32_t portNum, uint32_t bitPosi );
+void GPIOIntClear( uint32_t portNum, uint32_t bitPosi );
+
+static LPC_GPIO_TypeDef (* const LPC_GPIO[4]) = { LPC_GPIO0, LPC_GPIO1, LPC_GPIO2, LPC_GPIO3 };
+
+/*****************************************************************************
+** Function name: GPIOSetValue
+**
+** Descriptions: Set/clear a bitvalue in a specific bit position
+** in GPIO portX(X is the port number.)
+**
+** parameters: port num, bit position, bit value
+** Returned value: None
+**
+*****************************************************************************/
+static __INLINE void GPIOSetValue( uint32_t portNum, uint32_t bitPosi, uint32_t bitVal )
+{
+ LPC_GPIO[portNum]->MASKED_ACCESS[(1<<bitPosi)] = (bitVal<<bitPosi);
+}
+
+/*****************************************************************************
+** Function name: GPIOSetDir
+**
+** Descriptions: Set the direction in GPIO port
+**
+** parameters: port num, bit position, direction (1 out, 0 input)
+** Returned value: None
+**
+*****************************************************************************/
+static __INLINE void GPIOSetDir( uint32_t portNum, uint32_t bitPosi, uint32_t dir )
+{
+ if(dir)
+ LPC_GPIO[portNum]->DIR |= 1<<bitPosi;
+ else
+ LPC_GPIO[portNum]->DIR &= ~(1<<bitPosi);
+}
+
+#endif /* end __GPIO_H */
+/*****************************************************************************
+** End Of File
+******************************************************************************/
diff --git a/software/mpu/src/lightsens/lightsens.c b/software/mpu/src/lightsens/lightsens.c new file mode 100644 index 0000000..f816160 --- /dev/null +++ b/software/mpu/src/lightsens/lightsens.c @@ -0,0 +1,8 @@ +/*
+ * lightsens.c
+ *
+ * Created on: 24.05.2011
+ * Author: Roland
+ */
+
+#include "lightsens.h"
diff --git a/software/mpu/src/lightsens/lightsens.h b/software/mpu/src/lightsens/lightsens.h new file mode 100644 index 0000000..9f64fa5 --- /dev/null +++ b/software/mpu/src/lightsens/lightsens.h @@ -0,0 +1,12 @@ +/*
+ * lightsens.h
+ *
+ * Created on: 24.05.2011
+ * Author: Roland
+ */
+
+#ifndef LIGHTSENS_H_
+#define LIGHTSENS_H_
+
+
+#endif /* LIGHTSENS_H_ */
diff --git a/software/mpu/src/mpu_main.c b/software/mpu/src/mpu_main.c new file mode 100644 index 0000000..953b0b2 --- /dev/null +++ b/software/mpu/src/mpu_main.c @@ -0,0 +1,74 @@ +/*
+ * mpu_main.c
+ *
+ * Created on: 24.05.2011
+ * Author: Roland
+ */
+
+#include "LPC13xx.h"
+#include "gpio/gpio.h"
+#include "ssp/ssp.h"
+
+void LoopbackTest( uint8_t* src_addr, uint8_t* dest_addr );
+void SEEPROMTest( uint8_t* src_addr, uint8_t* dest_addr );
+
+/******************************************************************************
+** Main Function main()
+******************************************************************************/
+int main (void)
+{
+ /* Basic chip initialization is taken care of in SystemInit() called
+ * from the startup code. SystemInit() and chip settings are defined
+ * in the CMSIS system_<part family>.c file.
+ */
+
+ uint32_t i;
+
+ uint8_t src_addr[SSP_BUFSIZE];
+ uint8_t dest_addr[SSP_BUFSIZE];
+
+#if SSP_DEBUG
+ UARTInit(115200);
+#endif
+
+ SSPInit(); /* initialize SSP port, share pins with SPI0
+ on port0(p0.15-18). */
+ for ( i = 0; i < SSP_BUFSIZE; i++ )
+ {
+ src_addr[i] = (uint8_t)i;
+ dest_addr[i] = 0;
+ }
+
+#if TX_RX_ONLY
+ /* For the inter-board communication, one board is set as
+ master transmit, the other is set to slave receive. */
+#if SSP_SLAVE
+ /* Slave receive */
+ SSPReceive( (uint8_t *)dest_addr, SSP_BUFSIZE );
+ for ( i = 0; i < SSP_BUFSIZE; i++ )
+ {
+ if ( src_addr[i] != dest_addr[i] )
+ {
+ while ( 1 ); /* Verification failure, fatal error */
+ }
+ }
+#else
+ /* Master transmit */
+ SSPSend( (uint8_t *)src_addr, SSP_BUFSIZE);
+#endif
+#else
+ /* TX_RX_ONLY=0, it's either an internal loopback test
+ within SSP peripheral or communicate with a serial EEPROM. */
+#if LOOPBACK_MODE
+ LoopbackTest( src_addr, dest_addr );
+#else
+ SEEPROMTest( src_addr, dest_addr );
+ /* If JTAG TCK is used as SSP clock, change the setting before
+ serial EEPROM test, restore after the test. */
+#ifdef __JTAG_DISABLED
+ LPC_IOCON->JTAG_TCK_PIO0_10 &= ~0x07; /* Restore JTAG_TCK */
+#endif
+#endif /* endif NOT LOOPBACK_MODE */
+#endif /* endif NOT TX_RX_ONLY */
+ return 0;
+}
diff --git a/software/mpu/src/ssp/ssp.c b/software/mpu/src/ssp/ssp.c new file mode 100644 index 0000000..edda1fd --- /dev/null +++ b/software/mpu/src/ssp/ssp.c @@ -0,0 +1,224 @@ +/*****************************************************************************
+ * ssp.c: SSP C file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.07.20 ver 1.00 Preliminary version, first Release
+ *
+*****************************************************************************/
+#include "LPC13xx.h" /* LPC13xx Peripheral Registers */
+#include "../gpio/gpio.h"
+#include "ssp.h"
+
+/* statistics of all the interrupts */
+volatile uint32_t interruptRxStat = 0;
+volatile uint32_t interruptOverRunStat = 0;
+volatile uint32_t interruptRxTimeoutStat = 0;
+
+/*****************************************************************************
+** Function name: SSP_IRQHandler
+**
+** Descriptions: SSP port is used for SPI communication.
+** SSP interrupt handler
+** The algorithm is, if RXFIFO is at least half full,
+** start receive until it's empty; if TXFIFO is at least
+** half empty, start transmit until it's full.
+** This will maximize the use of both FIFOs and performance.
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void SSP_IRQHandler(void)
+{
+ uint32_t regValue;
+
+ regValue = LPC_SSP->MIS;
+ if ( regValue & SSPMIS_RORMIS ) /* Receive overrun interrupt */
+ {
+ interruptOverRunStat++;
+ LPC_SSP->ICR = SSPICR_RORIC; /* clear interrupt */
+ }
+ if ( regValue & SSPMIS_RTMIS ) /* Receive timeout interrupt */
+ {
+ interruptRxTimeoutStat++;
+ LPC_SSP->ICR = SSPICR_RTIC; /* clear interrupt */
+ }
+
+ /* please be aware that, in main and ISR, CurrentRxIndex and CurrentTxIndex
+ are shared as global variables. It may create some race condition that main
+ and ISR manipulate these variables at the same time. SSPSR_BSY checking (polling)
+ in both main and ISR could prevent this kind of race condition */
+ if ( regValue & SSPMIS_RXMIS ) /* Rx at least half full */
+ {
+ interruptRxStat++; /* receive until it's empty */
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: SSPInit
+**
+** Descriptions: SSP port initialization routine
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void SSPInit( void )
+{
+ uint8_t i, Dummy=Dummy;
+
+ LPC_SYSCON->PRESETCTRL |= (0x1<<0);
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<11);
+ LPC_SYSCON->SSPCLKDIV = 0x02; /* Divided by 2 */
+ LPC_IOCON->PIO0_8 &= ~0x07; /* SSP I/O config */
+ LPC_IOCON->PIO0_8 |= 0x01; /* SSP MISO */
+ LPC_IOCON->PIO0_9 &= ~0x07;
+ LPC_IOCON->PIO0_9 |= 0x01; /* SSP MOSI */
+#ifdef __JTAG_DISABLED
+ LPC_IOCON->SCKLOC = 0x00;
+ LPC_IOCON->JTAG_TCK_PIO0_10 &= ~0x07;
+ LPC_IOCON->JTAG_TCK_PIO0_10 |= 0x02; /* SSP CLK */
+#endif
+
+#if 1
+ /* On HummingBird 1(HB1), SSP CLK can be routed to different pins,
+ other than JTAG TCK, it's either P2.11 func. 1 or P0.6 func. 2. */
+ LPC_IOCON->SCKLOC = 0x01;
+ LPC_IOCON->PIO2_11 = 0x01;/* P2.11 function 1 is SSP clock, need to combined
+ with IOCONSCKLOC register setting */
+#else
+ LPC_IOCON->SCKLOC = 0x02;
+ LPC_IOCON->PIO0_6 = 0x02; /* P0.6 function 2 is SSP clock, need to combined
+ with IOCONSCKLOC register setting */
+#endif
+
+#if USE_CS
+ LPC_IOCON->PIO0_2 &= ~0x07;
+ LPC_IOCON->PIO0_2 |= 0x01; /* SSP SSEL */
+#else
+ LPC_IOCON->PIO0_2 &= ~0x07; /* SSP SSEL is a GPIO pin */
+ /* port0, bit 2 is set to GPIO output and high */
+ GPIOSetDir( PORT0, 2, 1 );
+ GPIOSetValue( PORT0, 2, 1 );
+#endif
+
+ /* Set DSS data to 8-bit, Frame format SPI, CPOL = 0, CPHA = 0, and SCR is 15 */
+ LPC_SSP->CR0 = 0x0707;
+
+ /* SSPCPSR clock prescale register, master mode, minimum divisor is 0x02 */
+ LPC_SSP->CPSR = 0x2;
+
+ for ( i = 0; i < FIFOSIZE; i++ )
+ {
+ Dummy = LPC_SSP->DR; /* clear the RxFIFO */
+ }
+
+ /* Enable the SSP Interrupt */
+ NVIC_EnableIRQ(SSP_IRQn);
+
+ /* Device select as master, SSP Enabled */
+#if LOOPBACK_MODE
+ LPC_SSP->CR1 = SSPCR1_LBM | SSPCR1_SSE;
+#else
+#if SSP_SLAVE
+ /* Slave mode */
+ if ( LPC_SSP->CR1 & SSPCR1_SSE )
+ {
+ /* The slave bit can't be set until SSE bit is zero. */
+ LPC_SSP->CR1 &= ~SSPCR1_SSE;
+ }
+ LPC_SSP->CR1 = SSPCR1_MS; /* Enable slave bit first */
+ LPC_SSP->CR1 |= SSPCR1_SSE; /* Enable SSP */
+#else
+ /* Master mode */
+ LPC_SSP->CR1 = SSPCR1_SSE;
+#endif
+#endif
+ /* Set SSPINMS registers to enable interrupts */
+ /* enable all error related interrupts */
+ LPC_SSP->IMSC = SSPIMSC_RORIM | SSPIMSC_RTIM;
+ return;
+}
+
+/*****************************************************************************
+** Function name: SSPSend
+**
+** Descriptions: Send a block of data to the SSP port, the
+** first parameter is the buffer pointer, the 2nd
+** parameter is the block length.
+**
+** parameters: buffer pointer, and the block length
+** Returned value: None
+**
+*****************************************************************************/
+void SSPSend( uint8_t *buf, uint32_t Length )
+{
+ uint32_t i;
+ uint8_t Dummy = Dummy;
+
+ for ( i = 0; i < Length; i++ )
+ {
+ /* Move on only if NOT busy and TX FIFO not full. */
+ while ( (LPC_SSP->SR & (SSPSR_TNF|SSPSR_BSY)) != SSPSR_TNF );
+ LPC_SSP->DR = *buf;
+ buf++;
+#if !LOOPBACK_MODE
+ while ( (LPC_SSP->SR & (SSPSR_BSY|SSPSR_RNE)) != SSPSR_RNE );
+ /* Whenever a byte is written, MISO FIFO counter increments, Clear FIFO
+ on MISO. Otherwise, when SSP0Receive() is called, previous data byte
+ is left in the FIFO. */
+ Dummy = LPC_SSP->DR;
+#else
+ /* Wait until the Busy bit is cleared. */
+ while ( LPC_SSP->SR & SSPSR_BSY );
+#endif
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: SSPReceive
+** Descriptions: the module will receive a block of data from
+** the SSP, the 2nd parameter is the block
+** length.
+** parameters: buffer pointer, and block length
+** Returned value: None
+**
+*****************************************************************************/
+void SSPReceive( uint8_t *buf, uint32_t Length )
+{
+ uint32_t i;
+
+ for ( i = 0; i < Length; i++ )
+ {
+ /* As long as Receive FIFO is not empty, I can always receive. */
+ /* If it's a loopback test, clock is shared for both TX and RX,
+ no need to write dummy byte to get clock to get the data */
+ /* if it's a peer-to-peer communication, SSPDR needs to be written
+ before a read can take place. */
+#if !LOOPBACK_MODE
+#if SSP_SLAVE
+ while ( !(LPC_SSP->SR & SSPSR_RNE) );
+#else
+ LPC_SSP->DR = 0xFF;
+ /* Wait until the Busy bit is cleared */
+ while ( (LPC_SSP->SR & (SSPSR_BSY|SSPSR_RNE)) != SSPSR_RNE );
+#endif
+#else
+ while ( !(LPC_SSP->SR & SSPSR_RNE) );
+#endif
+ *buf = LPC_SSP->DR;
+ buf++;
+
+ }
+ return;
+}
+
+/******************************************************************************
+** End Of File
+******************************************************************************/
+
diff --git a/software/mpu/src/ssp/ssp.h b/software/mpu/src/ssp/ssp.h new file mode 100644 index 0000000..4491687 --- /dev/null +++ b/software/mpu/src/ssp/ssp.h @@ -0,0 +1,109 @@ +/*****************************************************************************
+ * ssp.h: Header file for NXP LPC134x Family Microprocessors
+ *
+ * Copyright(C) 2006, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2006.07.19 ver 1.00 Preliminary version, first Release
+ *
+******************************************************************************/
+#ifndef __SSP_H__
+#define __SSP_H__
+
+/* There are there modes in SSP: loopback, master or slave. */
+/* Here are the combination of all the tests.
+(1) LOOPBACK test: LOOPBACK_MODE=1, TX_RX_ONLY=0, USE_CS=1;
+(2) Serial EEPROM test: LOOPBACK_MODE=0, TX_RX_ONLY=0, USE_CS=0; (default)
+(3) TX(Master) Only: LOOPBACK_MODE=0, SSP_SLAVE=0, TX_RX_ONLY=1, USE_CS=1;
+(4) RX(Slave) Only: LOOPBACK_MODE=0, SSP_SLAVE=1, TX_RX_ONLY=0, USE_CS=1 */
+
+#define LOOPBACK_MODE 0 /* 1 is loopback, 0 is normal operation. */
+#define SSP_SLAVE 0 /* 1 is SLAVE mode, 0 is master mode */
+#define TX_RX_ONLY 0 /* 1 is TX or RX only depending on SSP_SLAVE
+ flag, 0 is either loopback mode or communicate
+ with a serial EEPROM. */
+
+/* if USE_CS is zero, set SSEL as GPIO that you have total control of the sequence */
+/* When test serial SEEPROM(LOOPBACK_MODE=0, TX_RX_ONLY=0), set USE_CS to 0. */
+/* When LOOPBACK_MODE=1 or TX_RX_ONLY=1, set USE_CS to 1. */
+
+#define USE_CS 0
+#define SSP_DEBUG 0
+
+/* SPI read and write buffer size */
+#define SSP_BUFSIZE 16
+#define FIFOSIZE 8
+
+#define DELAY_COUNT 10
+#define MAX_TIMEOUT 0xFF
+
+/* Port0.2 is the SSP select pin */
+#define SSP0_SEL (1 << 2)
+
+/* SSP Status register */
+#define SSPSR_TFE (1 << 0)
+#define SSPSR_TNF (1 << 1)
+#define SSPSR_RNE (1 << 2)
+#define SSPSR_RFF (1 << 3)
+#define SSPSR_BSY (1 << 4)
+
+/* SSP CR0 register */
+#define SSPCR0_DSS (1 << 0)
+#define SSPCR0_FRF (1 << 4)
+#define SSPCR0_SPO (1 << 6)
+#define SSPCR0_SPH (1 << 7)
+#define SSPCR0_SCR (1 << 8)
+
+/* SSP CR1 register */
+#define SSPCR1_LBM (1 << 0)
+#define SSPCR1_SSE (1 << 1)
+#define SSPCR1_MS (1 << 2)
+#define SSPCR1_SOD (1 << 3)
+
+/* SSP Interrupt Mask Set/Clear register */
+#define SSPIMSC_RORIM (1 << 0)
+#define SSPIMSC_RTIM (1 << 1)
+#define SSPIMSC_RXIM (1 << 2)
+#define SSPIMSC_TXIM (1 << 3)
+
+/* SSP0 Interrupt Status register */
+#define SSPRIS_RORRIS (1 << 0)
+#define SSPRIS_RTRIS (1 << 1)
+#define SSPRIS_RXRIS (1 << 2)
+#define SSPRIS_TXRIS (1 << 3)
+
+/* SSP0 Masked Interrupt register */
+#define SSPMIS_RORMIS (1 << 0)
+#define SSPMIS_RTMIS (1 << 1)
+#define SSPMIS_RXMIS (1 << 2)
+#define SSPMIS_TXMIS (1 << 3)
+
+/* SSP0 Interrupt clear register */
+#define SSPICR_RORIC (1 << 0)
+#define SSPICR_RTIC (1 << 1)
+
+/* ATMEL SEEPROM command set */
+#define WREN 0x06 /* MSB A8 is set to 0, simplifying test */
+#define WRDI 0x04
+#define RDSR 0x05
+#define WRSR 0x01
+#define READ 0x03
+#define WRITE 0x02
+
+/* RDSR status bit definition */
+#define RDSR_RDY 0x01
+#define RDSR_WEN 0x02
+
+/* If RX_INTERRUPT is enabled, the SSP RX will be handled in the ISR
+SSPReceive() will not be needed. */
+extern void SSP_IRQHandler (void);
+extern void SSPInit( void );
+extern void SSPSend( uint8_t *Buf, uint32_t Length );
+extern void SSPReceive( uint8_t *buf, uint32_t Length );
+
+#endif /* __SSP_H__ */
+/*****************************************************************************
+** End Of File
+******************************************************************************/
+
diff --git a/software/mpu/src/ssp/ssptest.c b/software/mpu/src/ssp/ssptest.c new file mode 100644 index 0000000..119f8a7 --- /dev/null +++ b/software/mpu/src/ssp/ssptest.c @@ -0,0 +1,190 @@ +/*****************************************************************************
+ * ssptest.c: main C entry file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.07.19 ver 1.00 Preliminary version, first Release
+ *
+******************************************************************************/
+#include "LPC13xx.h" /* LPC13xx definitions */
+#include "../gpio/gpio.h"
+#include "ssp.h"
+#if SSP_DEBUG
+#include "uart.h"
+#endif
+
+/*****************************************************************************
+** Function name: LoopbackTest
+**
+** Descriptions: Loopback test
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void LoopbackTest( uint8_t* src_addr, uint8_t* dest_addr )
+{
+ uint32_t i;
+
+#if !USE_CS
+ /* Set SSEL pin to output low. */
+ GPIOSetValue( PORT0, 2, 0 );
+#endif
+ i = 0;
+ while ( i <= SSP_BUFSIZE )
+ {
+ /* to check the RXIM and TXIM interrupt, I send a block data at one time
+ based on the FIFOSIZE(8). */
+ SSPSend( (uint8_t *)&src_addr[i], FIFOSIZE );
+ /* If RX interrupt is enabled, below receive routine can be
+ also handled inside the ISR. */
+ SSPReceive( (uint8_t *)&dest_addr[i], FIFOSIZE );
+ i += FIFOSIZE;
+ }
+#if !USE_CS
+ /* Set SSEL pin to output high. */
+ GPIOSetValue( PORT0, 2, 1 );
+#endif
+
+ /* verifying write and read data buffer. */
+ for ( i = 0; i < SSP_BUFSIZE; i++ )
+ {
+ if ( src_addr[i] != dest_addr[i] )
+ {
+ while( 1 ); /* Verification failed */
+ }
+ }
+ return;
+}
+
+/*****************************************************************************
+** Function name: SEEPROMTest
+**
+** Descriptions: Serial EEPROM(Atmel 25xxx) test
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void SEEPROMTest( uint8_t* src_addr, uint8_t* dest_addr )
+{
+ uint32_t i, timeout;
+#if SSP_DEBUG
+ uint8_t temp[2];
+#endif
+
+ LPC_IOCON->PIO0_2 &= ~0x07; /* SSP SSEL is a GPIO pin */
+ GPIOSetValue( PORT0, 2, 1 );
+ /* port0, bit 2 is set to GPIO output and high */
+ GPIOSetDir( PORT0, 2, 1 );
+
+ GPIOSetValue( PORT0, 2, 0 );
+ /* Test Atmel 25016 SPI SEEPROM. */
+ src_addr[0] = WREN; /* set write enable latch */
+ SSPSend( (uint8_t *)src_addr, 1 );
+ GPIOSetValue( PORT0, 2, 1 );
+
+ for ( i = 0; i < DELAY_COUNT; i++ ); /* delay minimum 250ns */
+
+ GPIOSetValue( PORT0, 2, 0 );
+ src_addr[0] = RDSR; /* check status to see if write enabled is latched */
+ SSPSend( (uint8_t *)src_addr, 1 );
+ SSPReceive( (uint8_t *)dest_addr, 1 );
+ GPIOSetValue( PORT0, 2, 1 );
+ if ( (dest_addr[0] & (RDSR_WEN|RDSR_RDY)) != RDSR_WEN )
+ /* bit 0 to 0 is ready, bit 1 to 1 is write enable */
+ {
+ while ( 1 );
+ }
+
+ for ( i = 0; i < SSP_BUFSIZE; i++ ) /* Init RD and WR buffer */
+ {
+ src_addr[i+3] = i; /* leave three bytes for cmd and offset(16 bits) */
+ dest_addr[i] = 0;
+ }
+
+ /* please note the first two bytes of WR and RD buffer is used for
+ commands and offset, so only 2 through SSP_BUFSIZE is used for data read,
+ write, and comparison. */
+ GPIOSetValue( PORT0, 2, 0 );
+ src_addr[0] = WRITE; /* Write command is 0x02, low 256 bytes only */
+ src_addr[1] = 0x00; /* write address offset MSB is 0x00 */
+ src_addr[2] = 0x00; /* write address offset LSB is 0x00 */
+ SSPSend( (uint8_t *)src_addr, SSP_BUFSIZE );
+ GPIOSetValue( PORT0, 2, 1 );
+
+ for ( i = 0; i < 0x30000; i++ ); /* delay, minimum 3ms */
+
+ timeout = 0;
+ while ( timeout < MAX_TIMEOUT )
+ {
+ GPIOSetValue( PORT0, 2, 0 );
+ src_addr[0] = RDSR; /* check status to see if write cycle is done or not */
+ SSPSend( (uint8_t *)src_addr, 1);
+ SSPReceive( (uint8_t *)dest_addr, 1 );
+ GPIOSetValue( PORT0, 2, 1 );
+ if ( (dest_addr[0] & RDSR_RDY) == 0x00 ) /* bit 0 to 0 is ready */
+ {
+ break;
+ }
+ timeout++;
+ }
+ if ( timeout == MAX_TIMEOUT )
+ {
+ while ( 1 );
+ }
+
+ for ( i = 0; i < DELAY_COUNT; i++ ); /* delay, minimum 250ns */
+
+ GPIOSetValue( PORT0, 2, 0 );
+ src_addr[0] = READ; /* Read command is 0x03, low 256 bytes only */
+ src_addr[1] = 0x00; /* Read address offset MSB is 0x00 */
+ src_addr[2] = 0x00; /* Read address offset LSB is 0x00 */
+ SSPSend( (uint8_t *)src_addr, 3 );
+ SSPReceive( (uint8_t *)&dest_addr[3], SSP_BUFSIZE-3 );
+ GPIOSetValue( PORT0, 2, 1 );
+
+ /* verifying, ignore the difference in the first two bytes */
+ for ( i = 3; i < SSP_BUFSIZE; i++ )
+ {
+ if ( src_addr[i] != dest_addr[i] )
+ {
+#if SSP_DEBUG
+ temp[0] = (dest_addr[i] & 0xF0) >> 4;
+ if ( (temp[0] >= 0) && (temp[0] <= 9) )
+ {
+ temp[0] += 0x30;
+ }
+ else
+ {
+ temp[0] -= 0x0A;
+ temp[0] += 0x41;
+ }
+ temp[1] = dest_addr[i] & 0x0F;
+ if ( (temp[1] >= 0) && (temp[1] <= 9) )
+ {
+ temp[1] += 0x30;
+ }
+ else
+ {
+ temp[1] -= 0x0A;
+ temp[1] += 0x41;
+ }
+ UARTSend((uint8_t *)&temp[0], 2);
+ UARTSend("\r\n", 2);
+#endif
+ while( 1 ); /* Verification failed */
+ }
+ }
+#if SSP_DEBUG
+ UARTSend("PASS\r\n", 6);
+#endif
+ return;
+}
+
+/******************************************************************************
+** End Of File
+******************************************************************************/
+
diff --git a/software/mpu/src/uart/uart.c b/software/mpu/src/uart/uart.c new file mode 100644 index 0000000..b07b3d3 --- /dev/null +++ b/software/mpu/src/uart/uart.c @@ -0,0 +1,189 @@ +/*****************************************************************************
+ * uart.c: UART API file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.08.21 ver 1.00 Preliminary version, first Release
+ *
+******************************************************************************/
+#include "LPC13xx.h"
+#include "uart.h"
+
+// CodeRed - change for CMSIS 1.3
+#define SystemFrequency SystemCoreClock
+
+volatile uint32_t UARTStatus;
+volatile uint8_t UARTTxEmpty = 1;
+volatile uint8_t UARTBuffer[BUFSIZE];
+volatile uint32_t UARTCount = 0;
+
+/*****************************************************************************
+** Function name: UART_IRQHandler
+**
+** Descriptions: UART interrupt handler
+**
+** parameters: None
+** Returned value: None
+**
+*****************************************************************************/
+void UART_IRQHandler(void)
+{
+ uint8_t IIRValue, LSRValue;
+ uint8_t Dummy = Dummy;
+
+ IIRValue = LPC_UART->IIR;
+
+ IIRValue >>= 1; /* skip pending bit in IIR */
+ IIRValue &= 0x07; /* check bit 1~3, interrupt identification */
+ if (IIRValue == IIR_RLS) /* Receive Line Status */
+ {
+ LSRValue = LPC_UART->LSR;
+ /* Receive Line Status */
+ if (LSRValue & (LSR_OE | LSR_PE | LSR_FE | LSR_RXFE | LSR_BI))
+ {
+ /* There are errors or break interrupt */
+ /* Read LSR will clear the interrupt */
+ UARTStatus = LSRValue;
+ Dummy = LPC_UART->RBR; /* Dummy read on RX to clear
+ interrupt, then bail out */
+ return;
+ }
+ if (LSRValue & LSR_RDR) /* Receive Data Ready */
+ {
+ /* If no error on RLS, normal ready, save into the data buffer. */
+ /* Note: read RBR will clear the interrupt */
+ UARTBuffer[UARTCount++] = LPC_UART->RBR;
+ if (UARTCount == BUFSIZE)
+ {
+ UARTCount = 0; /* buffer overflow */
+ }
+ }
+ }
+ else if (IIRValue == IIR_RDA) /* Receive Data Available */
+ {
+ /* Receive Data Available */
+ UARTBuffer[UARTCount++] = LPC_UART->RBR;
+ if (UARTCount == BUFSIZE)
+ {
+ UARTCount = 0; /* buffer overflow */
+ }
+ }
+ else if (IIRValue == IIR_CTI) /* Character timeout indicator */
+ {
+ /* Character Time-out indicator */
+ UARTStatus |= 0x100; /* Bit 9 as the CTI error */
+ }
+ else if (IIRValue == IIR_THRE) /* THRE, transmit holding register empty */
+ {
+ /* THRE interrupt */
+ LSRValue = LPC_UART->LSR; /* Check status in the LSR to see if
+ valid data in U0THR or not */
+ if (LSRValue & LSR_THRE)
+ {
+ UARTTxEmpty = 1;
+ }
+ else
+ {
+ UARTTxEmpty = 0;
+ }
+ }
+ return;
+}
+
+
+
+/*****************************************************************************
+** Function name: UARTInit
+**
+** Descriptions: Initialize UART0 port, setup pin select,
+** clock, parity, stop bits, FIFO, etc.
+**
+** parameters: UART baudrate
+** Returned value: None
+**
+*****************************************************************************/
+void UARTInit(uint32_t baudrate)
+{
+ uint32_t Fdiv;
+ uint32_t regVal;
+
+ UARTTxEmpty = 1;
+ UARTCount = 0;
+
+ NVIC_DisableIRQ(UART_IRQn);
+
+ LPC_IOCON->PIO1_6 &= ~0x07; /* UART I/O config */
+ LPC_IOCON->PIO1_6 |= 0x01; /* UART RXD */
+ LPC_IOCON->PIO1_7 &= ~0x07;
+ LPC_IOCON->PIO1_7 |= 0x01; /* UART TXD */
+ /* Enable UART clock */
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<12);
+ LPC_SYSCON->UARTCLKDIV = 0x1; /* divided by 1 */
+
+ LPC_UART->LCR = 0x83; /* 8 bits, no Parity, 1 Stop bit */
+ regVal = LPC_SYSCON->UARTCLKDIV;
+ Fdiv = (((SystemFrequency/LPC_SYSCON->SYSAHBCLKDIV)/regVal)/16)/baudrate ; /*baud rate */
+
+ LPC_UART->DLM = Fdiv / 256;
+ LPC_UART->DLL = Fdiv % 256;
+ LPC_UART->LCR = 0x03; /* DLAB = 0 */
+ LPC_UART->FCR = 0x07; /* Enable and reset TX and RX FIFO. */
+
+ /* Read to clear the line status. */
+ regVal = LPC_UART->LSR;
+
+ /* Ensure a clean start, no data in either TX or RX FIFO. */
+// CodeRed - added parentheses around comparison in operand of &
+ while (( LPC_UART->LSR & (LSR_THRE|LSR_TEMT)) != (LSR_THRE|LSR_TEMT) );
+ while ( LPC_UART->LSR & LSR_RDR )
+ {
+ regVal = LPC_UART->RBR; /* Dump data from RX FIFO */
+ }
+
+ /* Enable the UART Interrupt */
+ NVIC_EnableIRQ(UART_IRQn);
+
+#if TX_INTERRUPT
+ LPC_UART->IER = IER_RBR | IER_THRE | IER_RLS; /* Enable UART interrupt */
+#else
+ LPC_UART->IER = IER_RBR | IER_RLS; /* Enable UART interrupt */
+#endif
+ return;
+}
+
+/*****************************************************************************
+** Function name: UARTSend
+**
+** Descriptions: Send a block of data to the UART 0 port based
+** on the data length
+**
+** parameters: buffer pointer, and data length
+** Returned value: None
+**
+*****************************************************************************/
+void UARTSend(uint8_t *BufferPtr, uint32_t Length)
+{
+
+ while ( Length != 0 )
+ {
+ /* THRE status, contain valid data */
+#if !TX_INTERRUPT
+ while ( !(LPC_UART->LSR & LSR_THRE) );
+ LPC_UART->THR = *BufferPtr;
+#else
+ /* Below flag is set inside the interrupt handler when THRE occurs. */
+ while ( !(UARTTxEmpty & 0x01) );
+ LPC_UART->THR = *BufferPtr;
+ UARTTxEmpty = 0; /* not empty in the THR until it shifts out */
+#endif
+ BufferPtr++;
+ Length--;
+ }
+ return;
+}
+
+/******************************************************************************
+** End Of File
+******************************************************************************/
diff --git a/software/mpu/src/uart/uart.h b/software/mpu/src/uart/uart.h new file mode 100644 index 0000000..d729be8 --- /dev/null +++ b/software/mpu/src/uart/uart.h @@ -0,0 +1,55 @@ +/*****************************************************************************
+ * uart.h: Header file for NXP LPC13xx Family Microprocessors
+ *
+ * Copyright(C) 2008, NXP Semiconductor
+ * All rights reserved.
+ *
+ * History
+ * 2008.08.21 ver 1.00 Preliminary version, first Release
+ *
+******************************************************************************/
+#ifndef __UART_H
+#define __UART_H
+
+
+#define RS485_ENABLED 0
+#define TX_INTERRUPT 0 /* 0 if TX uses polling, 1 interrupt driven. */
+
+#define IER_RBR 0x01
+#define IER_THRE 0x02
+#define IER_RLS 0x04
+
+#define IIR_PEND 0x01
+#define IIR_RLS 0x03
+#define IIR_RDA 0x02
+#define IIR_CTI 0x06
+#define IIR_THRE 0x01
+
+#define LSR_RDR 0x01
+#define LSR_OE 0x02
+#define LSR_PE 0x04
+#define LSR_FE 0x08
+#define LSR_BI 0x10
+#define LSR_THRE 0x20
+#define LSR_TEMT 0x40
+#define LSR_RXFE 0x80
+
+#define BUFSIZE 0x40
+
+/* RS485 mode definition. */
+#define RS485_NMMEN (0x1<<0)
+#define RS485_RXDIS (0x1<<1)
+#define RS485_AADEN (0x1<<2)
+#define RS485_SEL (0x1<<3)
+#define RS485_DCTRL (0x1<<4)
+#define RS485_OINV (0x1<<5)
+
+
+void UARTInit(uint32_t Baudrate);
+void UART_IRQHandler(void);
+void UARTSend(uint8_t *BufferPtr, uint32_t Length);
+
+#endif /* end __UART_H */
+/*****************************************************************************
+** End Of File
+******************************************************************************/
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