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134 lines
4.0 KiB
134 lines
4.0 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the AVRISP project. This file contains the main tasks of
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* the project and is responsible for the initial application hardware configuration.
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*/
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// TODO: Add in software SPI for lower programming speeds below 125KHz
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// TODO: Add reversed/shorted target connector checks
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#include "AVRISP.h"
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/** Main program entry point. This routine contains the overall program flow, including initial
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* setup of all components and the main program loop.
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*/
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int main(void)
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{
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SetupHardware();
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V2Params_LoadNonVolatileParamValues();
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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for (;;)
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{
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Process_AVRISP_Commands();
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V2Params_UpdateParamValues();
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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LEDs_Init();
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USB_Init();
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#if defined(ADC)
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/* Initialize the ADC converter for VTARGET level detection on supported AVR models */
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ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
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ADC_SetupChannel(VTARGET_ADC_CHANNEL);
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ADC_StartReading(VTARGET_ADC_CHANNEL | ADC_RIGHT_ADJUSTED | ADC_REFERENCE_AVCC);
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#endif
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/* Millisecond timer initialization for timeouts and delays */
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OCR0A = ((F_CPU / 64) / 1000);
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TCCR0A = (1 << WGM01);
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TCCR0B = ((1 << CS01) | (1 << CS00));
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}
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/** Event handler for the library USB Connection event. */
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void EVENT_USB_Device_Connect(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the library USB Disconnection event. */
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void EVENT_USB_Device_Disconnect(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the library USB Configuration Changed event. */
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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/* Indicate USB connected and ready */
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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/* Setup AVRISP data Endpoints */
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if (!(Endpoint_ConfigureEndpoint(AVRISP_DATA_EPNUM, EP_TYPE_BULK,
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ENDPOINT_DIR_OUT, AVRISP_DATA_EPSIZE,
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ENDPOINT_BANK_SINGLE)))
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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}
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/** Processes incomming V2 Protocol commands from the host, returning a response when required. */
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void Process_AVRISP_Commands(void)
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{
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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Endpoint_SelectEndpoint(AVRISP_DATA_EPNUM);
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/* Check to see if a V2 Protocol command has been received - if not, abort */
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if (!(Endpoint_IsOUTReceived()))
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return;
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/* Pass off processing of the V2 Protocol command to the V2 Protocol handler */
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V2Protocol_ProcessCommand();
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}
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