diff options
Diffstat (limited to 'software/idm-test/idm-test.c')
-rw-r--r-- | software/idm-test/idm-test.c | 428 |
1 files changed, 214 insertions, 214 deletions
diff --git a/software/idm-test/idm-test.c b/software/idm-test/idm-test.c index 9e10771..85e101f 100644 --- a/software/idm-test/idm-test.c +++ b/software/idm-test/idm-test.c @@ -1,214 +1,214 @@ -/*
- * spreadspace avr utils
- *
- *
- * Copyright (C) 2012 Christian Pointner <equinox@spreadspace.org>
- *
- * This file is part of spreadspace avr utils.
- *
- * spreadspace avr utils is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * any later version.
- *
- * spreadspace avr utils is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
- */
-
-
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/interrupt.h>
-#include <avr/power.h>
-
-#include "util.h"
-#include "led.h"
-
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-#include <LUFA/Drivers/Peripheral/SPI.h>
-#include <LUFA/Drivers/Misc/RingBuffer.h>
-#include <LUFA/Drivers/USB/USB.h>
-#include "lufa-descriptor-usbserial.h"
-
- /* Global I/O Buffers: */
-static RingBuffer_t SPItoUSB_Buffer;
-static uint8_t SPItoUSB_Buffer_Data[16];
-
-/** LUFA CDC Class driver interface configuration and state information. This structure is
- * passed to all CDC Class driver functions, so that multiple instances of the same class
- * within a device can be differentiated from one another.
- */
-USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
- {
- .Config =
- {
- .ControlInterfaceNumber = 0,
-
- .DataINEndpointNumber = CDC_TX_EPNUM,
- .DataINEndpointSize = CDC_TXRX_EPSIZE,
- .DataINEndpointDoubleBank = false,
-
- .DataOUTEndpointNumber = CDC_RX_EPNUM,
- .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
- .DataOUTEndpointDoubleBank = false,
-
- .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
- .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
- .NotificationEndpointDoubleBank = false,
- },
- };
-
-void EVENT_USB_Device_ConfigurationChanged(void)
-{
- CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
-}
-
-void EVENT_USB_Device_ControlRequest(void)
-{
- CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
-}
-/* end LUFA CDC-ACM specific definitions*/
-
-
- /* Hardware Defines: */
-#define SPI_CS_DDR DDRB
-#define SPI_CS_PORT PORTB
-#define CS 0
-#define PWRDWN_DDR DDRB
-#define PWRDWN_PORT PORTB
-#define PWRDWN 7
-#define INT_DDR DDRD
-#define INT_PORT PORTD
-#define INT_PIN PIND
-#define INT 0
-
-volatile unsigned char cnt = 0;
-
-void SetupHardware(void)
-{
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- cpu_init();
- led_init();
- USB_Init();
-
- TCCR0B = (1 << CS02);
-
- SPI_Init(SPI_SPEED_FCPU_DIV_8 | SPI_MODE_MASTER | SPI_ORDER_MSB_FIRST |
- SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING);
- SPI_CS_DDR |= (1<<CS);
- SPI_CS_PORT |= (1<<CS);
-
- PWRDWN_DDR |= (1<<PWRDWN);
- PWRDWN_PORT |= (1<<PWRDWN);
-
- INT_DDR &= ~(1<<INT);
- INT_PORT |= (1<<INT);
-}
-
-void IDM_SendCmd(uint8_t cmd)
-{
- led_on();
- SPI_CS_PORT &= ~(1<<CS);
- SPI_SendByte(cmd);
- SPI_CS_PORT |= (1<<CS);
- led_off();
-}
-
-unsigned char tmp_cnt = 0;
-
-void IDM_ReadData(void)
-{
- /* uint8_t int_state = (INT_PIN & (1<<INT)); */
- /* while(!int_state) { */
- /* RingBuffer_Insert(&SPItoUSB_Buffer, tmp_cnt); */
- /* /\* tmp_cnt = tmp_cnt >= 255 ? 32 : tmp_cnt+1; *\/ */
- /* tmp_cnt++; */
- /* if(RingBuffer_IsFull(&SPItoUSB_Buffer)) */
- /* break; */
- /* int_state = (INT_PIN & (1<<INT)); */
- /* } */
-
- led_on();
- SPI_CS_PORT &= ~(1<<CS);
- _delay_us(100);
-
- SPI_SendByte('r');
- _delay_us(30);
- uint8_t int_state = (INT_PIN & (1<<INT));
- while(!int_state) {
- uint8_t ReceivedByte = SPI_TransferByte(0);
- /* if(ReceivedByte == tmp_cnt) */
- /* RingBuffer_Insert(&SPItoUSB_Buffer, '.'); */
- /* else */
- /* RingBuffer_Insert(&SPItoUSB_Buffer, 'e'); */
- RingBuffer_Insert(&SPItoUSB_Buffer, ReceivedByte);
- tmp_cnt++;
-
- /* if(RingBuffer_IsFull(&SPItoUSB_Buffer)) */
- if(RingBuffer_GetFreeCount(&SPItoUSB_Buffer) == 1)
- break;
- _delay_us(70);
- int_state = (INT_PIN & (1<<INT));
- }
-
- RingBuffer_Insert(&SPItoUSB_Buffer, 128);
-
- _delay_us(30);
- SPI_CS_PORT |= (1<<CS);
- _delay_us(50);
- led_off();
-}
-
-int main(void)
-{
- SetupHardware();
- RingBuffer_InitBuffer(&SPItoUSB_Buffer, SPItoUSB_Buffer_Data, sizeof(SPItoUSB_Buffer_Data));
- sei();
-
- for (;;) {
- int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface);
- while(BytesReceived > 0) {
- int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
- if (ReceivedByte >= 0) {
- switch(ReceivedByte) {
- case 'p': PWRDWN_PORT &= ~(1<<PWRDWN); break;
- case 'P': PWRDWN_PORT |= (1<<PWRDWN); break;
- case 'r': break;
- default: IDM_SendCmd(ReceivedByte); break;
- }
- }
- BytesReceived--;
- }
-
- if(!(INT_PIN & (1<<INT)))
- IDM_ReadData();
-
- uint16_t BufferCount = RingBuffer_GetCount(&SPItoUSB_Buffer);
- if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(SPItoUSB_Buffer_Data) * .75))) {
- TIFR0 |= (1 << TOV0);
- while (BufferCount--) {
- if(CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
- RingBuffer_Peek(&SPItoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
- break;
-
- RingBuffer_Remove(&SPItoUSB_Buffer);
- }
- }
-
- CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
- USB_USBTask();
- }
-}
+/* + * spreadspace avr utils + * + * + * Copyright (C) 2012 Christian Pointner <equinox@spreadspace.org> + * + * This file is part of spreadspace avr utils. + * + * spreadspace avr utils is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * any later version. + * + * spreadspace avr utils is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include <avr/io.h> +#include <avr/wdt.h> +#include <avr/interrupt.h> +#include <avr/power.h> + +#include "util.h" +#include "led.h" + +/* + LUFA Library + Copyright (C) Dean Camera, 2012. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ +#include <LUFA/Drivers/Peripheral/SPI.h> +#include <LUFA/Drivers/Misc/RingBuffer.h> +#include <LUFA/Drivers/USB/USB.h> +#include "lufa-descriptor-usbserial.h" + + /* Global I/O Buffers: */ +static RingBuffer_t SPItoUSB_Buffer; +static uint8_t SPItoUSB_Buffer_Data[16]; + +/** LUFA CDC Class driver interface configuration and state information. This structure is + * passed to all CDC Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = 0, + + .DataINEndpointNumber = CDC_TX_EPNUM, + .DataINEndpointSize = CDC_TXRX_EPSIZE, + .DataINEndpointDoubleBank = false, + + .DataOUTEndpointNumber = CDC_RX_EPNUM, + .DataOUTEndpointSize = CDC_TXRX_EPSIZE, + .DataOUTEndpointDoubleBank = false, + + .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM, + .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, + .NotificationEndpointDoubleBank = false, + }, + }; + +void EVENT_USB_Device_ConfigurationChanged(void) +{ + CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface); +} + +void EVENT_USB_Device_ControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); +} +/* end LUFA CDC-ACM specific definitions*/ + + + /* Hardware Defines: */ +#define SPI_CS_DDR DDRB +#define SPI_CS_PORT PORTB +#define CS 0 +#define PWRDWN_DDR DDRB +#define PWRDWN_PORT PORTB +#define PWRDWN 7 +#define INT_DDR DDRD +#define INT_PORT PORTD +#define INT_PIN PIND +#define INT 0 + +volatile unsigned char cnt = 0; + +void SetupHardware(void) +{ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + cpu_init(); + led_init(); + USB_Init(); + + TCCR0B = (1 << CS02); + + SPI_Init(SPI_SPEED_FCPU_DIV_8 | SPI_MODE_MASTER | SPI_ORDER_MSB_FIRST | + SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING); + SPI_CS_DDR |= (1<<CS); + SPI_CS_PORT |= (1<<CS); + + PWRDWN_DDR |= (1<<PWRDWN); + PWRDWN_PORT |= (1<<PWRDWN); + + INT_DDR &= ~(1<<INT); + INT_PORT |= (1<<INT); +} + +void IDM_SendCmd(uint8_t cmd) +{ + led_on(); + SPI_CS_PORT &= ~(1<<CS); + SPI_SendByte(cmd); + SPI_CS_PORT |= (1<<CS); + led_off(); +} + +unsigned char tmp_cnt = 0; + +void IDM_ReadData(void) +{ + /* uint8_t int_state = (INT_PIN & (1<<INT)); */ + /* while(!int_state) { */ + /* RingBuffer_Insert(&SPItoUSB_Buffer, tmp_cnt); */ + /* /\* tmp_cnt = tmp_cnt >= 255 ? 32 : tmp_cnt+1; *\/ */ + /* tmp_cnt++; */ + /* if(RingBuffer_IsFull(&SPItoUSB_Buffer)) */ + /* break; */ + /* int_state = (INT_PIN & (1<<INT)); */ + /* } */ + + led_on(); + SPI_CS_PORT &= ~(1<<CS); + _delay_us(100); + + SPI_SendByte('r'); + _delay_us(30); + uint8_t int_state = (INT_PIN & (1<<INT)); + while(!int_state) { + uint8_t ReceivedByte = SPI_TransferByte(0); + /* if(ReceivedByte == tmp_cnt) */ + /* RingBuffer_Insert(&SPItoUSB_Buffer, '.'); */ + /* else */ + /* RingBuffer_Insert(&SPItoUSB_Buffer, 'e'); */ + RingBuffer_Insert(&SPItoUSB_Buffer, ReceivedByte); + tmp_cnt++; + + /* if(RingBuffer_IsFull(&SPItoUSB_Buffer)) */ + if(RingBuffer_GetFreeCount(&SPItoUSB_Buffer) == 1) + break; + _delay_us(70); + int_state = (INT_PIN & (1<<INT)); + } + + RingBuffer_Insert(&SPItoUSB_Buffer, 128); + + _delay_us(30); + SPI_CS_PORT |= (1<<CS); + _delay_us(50); + led_off(); +} + +int main(void) +{ + SetupHardware(); + RingBuffer_InitBuffer(&SPItoUSB_Buffer, SPItoUSB_Buffer_Data, sizeof(SPItoUSB_Buffer_Data)); + sei(); + + for (;;) { + int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); + while(BytesReceived > 0) { + int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); + if (ReceivedByte >= 0) { + switch(ReceivedByte) { + case 'p': PWRDWN_PORT &= ~(1<<PWRDWN); break; + case 'P': PWRDWN_PORT |= (1<<PWRDWN); break; + case 'r': break; + default: IDM_SendCmd(ReceivedByte); break; + } + } + BytesReceived--; + } + + if(!(INT_PIN & (1<<INT))) + IDM_ReadData(); + + uint16_t BufferCount = RingBuffer_GetCount(&SPItoUSB_Buffer); + if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(SPItoUSB_Buffer_Data) * .75))) { + TIFR0 |= (1 << TOV0); + while (BufferCount--) { + if(CDC_Device_SendByte(&VirtualSerial_CDC_Interface, + RingBuffer_Peek(&SPItoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError) + break; + + RingBuffer_Remove(&SPItoUSB_Buffer); + } + } + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + USB_USBTask(); + } +} |