From 73d9ce77cff476d795d337c5a04d0969a8fe984b Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Sat, 16 Feb 2013 20:15:49 +0000 Subject: added very basic pwm example git-svn-id: https://svn.spreadspace.org/avr/trunk@189 aa12f405-d877-488e-9caf-2d797e2a1cc7 --- usb-pwm/Makefile | 44 +++++++++++++++ usb-pwm/usb-pwm.c | 162 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 206 insertions(+) create mode 100644 usb-pwm/Makefile create mode 100644 usb-pwm/usb-pwm.c diff --git a/usb-pwm/Makefile b/usb-pwm/Makefile new file mode 100644 index 0000000..9cabb93 --- /dev/null +++ b/usb-pwm/Makefile @@ -0,0 +1,44 @@ +## +## spreadspace avr utils +## +## +## Copyright (C) 2013 Christian Pointner +## +## 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 . +## + +NAME := usb-pwm +BOARD_TYPE := teensy2 +OBJ := $(NAME).o +LIBS := util led lufa-descriptor-usbserial +EXTERNAL_LIBS := lufa + +LUFA_PATH := ../contrib/LUFA-120219 +LUFA_OPTS = -D USB_DEVICE_ONLY +LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0 +LUFA_OPTS += -D ORDERED_EP_CONFIG +LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8 +LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1 +LUFA_OPTS += -D USE_FLASH_DESCRIPTORS +LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)" +LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT + +LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\"" +LUFA_OPTS += -D USB_PRODUCT="L\"$(NAME)\"" + +LUFA_COMPONENTS := USB USBCLASS + +include ../include.mk diff --git a/usb-pwm/usb-pwm.c b/usb-pwm/usb-pwm.c new file mode 100644 index 0000000..fd1e916 --- /dev/null +++ b/usb-pwm/usb-pwm.c @@ -0,0 +1,162 @@ +/* + * spreadspace avr utils + * + * + * Copyright (C) 2013 Christian Pointner + * + * 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 . + */ + + +#include +#include +#include +#include + +#include "util.h" +#include "led.h" + +/* + LUFA Library + Copyright (C) Dean Camera, 2012. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ +#include +#include "lufa-descriptor-usbserial.h" + +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*/ + +#define PWM_VAL OCR1BL + +void pwm_init(void) +{ + DDRB |= (1< 0) + PWM_VAL--; +} + + +FILE usb_stream; + +void stdio_init(void) +{ + CDC_Device_CreateStream(&VirtualSerial_CDC_Interface,&usb_stream); + stdin = &usb_stream; + stdout = &usb_stream; + stderr = &usb_stream; +} + +void handle_cmd(uint8_t cmd) +{ + switch(cmd) { + case '0': pwm_off(); led_off(); printf("ok\r\n"); break; + case '1': pwm_on(); led_on(); printf("ok\r\n"); break; + case '+': pwm_inc(); printf("pwm = %d\r\n", PWM_VAL); break; + case '-': pwm_dec(); printf("pwm = %d\r\n", PWM_VAL); break; + case 'r': reset2bootloader(); break; + default: printf("error\r\n"); return; + } + +} + +int main(void) +{ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + cpu_init(); + led_init(); + USB_Init(); + stdio_init(); + pwm_init(); + sei(); + + for(;;) { + int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); + while(BytesReceived > 0) { + int ReceivedByte = fgetc(stdin); + if(ReceivedByte != EOF) { + handle_cmd(ReceivedByte); + } + BytesReceived--; + } + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + USB_USBTask(); + } +} -- cgit v1.2.3