X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/666c0fa4c31b2c9f7f02f6d0e09551e24dc4680c..a8b66f318dda3cc18dfcedaa3af3d01ab68b82e8:/Projects/AVRISP-MKII/Lib/V2Protocol.c?ds=sidebyside diff --git a/Projects/AVRISP-MKII/Lib/V2Protocol.c b/Projects/AVRISP-MKII/Lib/V2Protocol.c index 9e210c26a..618dedb43 100644 --- a/Projects/AVRISP-MKII/Lib/V2Protocol.c +++ b/Projects/AVRISP-MKII/Lib/V2Protocol.c @@ -1,21 +1,21 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in + without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this @@ -50,22 +50,26 @@ ISR(TIMER0_COMPA_vect, ISR_NOBLOCK) TimeoutTicksRemaining--; } -/** Initializes the hardware and software associated with the V2 protocol command handling. */ +/** Initialises the hardware and software associated with the V2 protocol command handling. */ void V2Protocol_Init(void) { #if defined(ADC) /* Initialize the ADC converter for VTARGET level detection on supported AVR models */ ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128); ADC_SetupChannel(VTARGET_ADC_CHANNEL); - ADC_StartReading(VTARGET_ADC_CHANNEL_MASK | ADC_RIGHT_ADJUSTED | ADC_REFERENCE_AVCC); + ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | VTARGET_ADC_CHANNEL_MASK); #endif - + /* Timeout timer initialization (10ms period) */ - OCR0A = ((F_CPU / 1024) / 100); + OCR0A = (((F_CPU / 1024) / 100) - 1); TCCR0A = (1 << WGM01); TIMSK0 = (1 << OCIE0A); - + V2Params_LoadNonVolatileParamValues(); + + #if defined(ENABLE_ISP_PROTOCOL) + ISPTarget_ConfigureRescueClock(); + #endif } /** Master V2 Protocol packet handler, for received V2 Protocol packets from a connected host. @@ -75,11 +79,11 @@ void V2Protocol_Init(void) void V2Protocol_ProcessCommand(void) { uint8_t V2Command = Endpoint_Read_Byte(); - + /* Start the timeout management timer */ TimeoutTicksRemaining = COMMAND_TIMEOUT_TICKS; TCCR0B = ((1 << CS02) | (1 << CS00)); - + switch (V2Command) { case CMD_SIGN_ON: @@ -104,7 +108,7 @@ void V2Protocol_ProcessCommand(void) break; case CMD_PROGRAM_FLASH_ISP: case CMD_PROGRAM_EEPROM_ISP: - ISPProtocol_ProgramMemory(V2Command); + ISPProtocol_ProgramMemory(V2Command); break; case CMD_READ_FLASH_ISP: case CMD_READ_EEPROM_ISP: @@ -139,7 +143,7 @@ void V2Protocol_ProcessCommand(void) V2Protocol_UnknownCommand(V2Command); break; } - + /* Disable the timeout management timer */ TCCR0B = 0; @@ -193,10 +197,10 @@ static void V2Protocol_ResetProtection(void) Endpoint_ClearOUT(); Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM); Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - + Endpoint_Write_Byte(CMD_RESET_PROTECTION); Endpoint_Write_Byte(STATUS_CMD_OK); - Endpoint_ClearIN(); + Endpoint_ClearIN(); } @@ -209,18 +213,18 @@ static void V2Protocol_GetSetParam(const uint8_t V2Command) { uint8_t ParamID = Endpoint_Read_Byte(); uint8_t ParamValue; - + if (V2Command == CMD_SET_PARAMETER) ParamValue = Endpoint_Read_Byte(); Endpoint_ClearOUT(); Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM); Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - + Endpoint_Write_Byte(V2Command); - + uint8_t ParamPrivs = V2Params_GetParameterPrivileges(ParamID); - + if ((V2Command == CMD_SET_PARAMETER) && (ParamPrivs & PARAM_PRIV_WRITE)) { Endpoint_Write_Byte(STATUS_CMD_OK); @@ -232,7 +236,7 @@ static void V2Protocol_GetSetParam(const uint8_t V2Command) Endpoint_Write_Byte(V2Params_GetParameterValue(ParamID)); } else - { + { Endpoint_Write_Byte(STATUS_CMD_FAILED); } @@ -250,7 +254,7 @@ static void V2Protocol_LoadAddress(void) Endpoint_ClearOUT(); Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM); Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN); - + if (CurrentAddress & (1UL << 31)) MustLoadExtendedAddress = true; @@ -258,3 +262,4 @@ static void V2Protocol_LoadAddress(void) Endpoint_Write_Byte(STATUS_CMD_OK); Endpoint_ClearIN(); } +