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Make seperate ISP, PDI and TPI folders in the AVRISP project Lib subdirectory to hold each protocol's files.

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Dean Camera 2009-12-23 14:45:47 +00:00
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474
Projects/AVRISP/Lib/ISP/ISPProtocol.c Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, 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
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* ISP Protocol handler, to process V2 Protocol wrapped ISP commands used in Atmel programmer devices.
*/
#include "ISPProtocol.h"
#if defined(ENABLE_ISP_PROTOCOL) || defined(__DOXYGEN__)
/** Handler for the CMD_ENTER_PROGMODE_ISP command, which attempts to enter programming mode on
* the attached device, returning success or failure back to the host.
*/
void ISPProtocol_EnterISPMode(void)
{
struct
{
uint8_t TimeoutMS;
uint8_t PinStabDelayMS;
uint8_t ExecutionDelayMS;
uint8_t SynchLoops;
uint8_t ByteDelay;
uint8_t PollValue;
uint8_t PollIndex;
uint8_t EnterProgBytes[4];
} Enter_ISP_Params;
Endpoint_Read_Stream_LE(&Enter_ISP_Params, sizeof(Enter_ISP_Params));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
uint8_t ResponseStatus = STATUS_CMD_FAILED;
CurrentAddress = 0;
ISPProtocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS);
SPI_Init(ISPTarget_GetSPIPrescalerMask() | SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING | SPI_MODE_MASTER);
while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED))
{
uint8_t ResponseBytes[4];
ISPTarget_ChangeTargetResetLine(true);
ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS);
for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)
{
ISPProtocol_DelayMS(Enter_ISP_Params.ByteDelay);
ResponseBytes[RByte] = SPI_TransferByte(Enter_ISP_Params.EnterProgBytes[RByte]);
}
/* Check if polling disabled, or if the polled value matches the expected value */
if (!(Enter_ISP_Params.PollIndex) || (ResponseBytes[Enter_ISP_Params.PollIndex - 1] == Enter_ISP_Params.PollValue))
{
ResponseStatus = STATUS_CMD_OK;
}
else
{
ISPTarget_ChangeTargetResetLine(false);
ISPProtocol_DelayMS(Enter_ISP_Params.PinStabDelayMS);
}
}
Endpoint_Write_Byte(CMD_ENTER_PROGMODE_ISP);
Endpoint_Write_Byte(ResponseStatus);
Endpoint_ClearIN();
}
/** Handler for the CMD_LEAVE_ISP command, which releases the target from programming mode. */
void ISPProtocol_LeaveISPMode(void)
{
struct
{
uint8_t PreDelayMS;
uint8_t PostDelayMS;
} Leave_ISP_Params;
Endpoint_Read_Stream_LE(&Leave_ISP_Params, sizeof(Leave_ISP_Params));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
ISPProtocol_DelayMS(Leave_ISP_Params.PreDelayMS);
ISPTarget_ChangeTargetResetLine(false);
SPI_ShutDown();
ISPProtocol_DelayMS(Leave_ISP_Params.PostDelayMS);
Endpoint_Write_Byte(CMD_LEAVE_PROGMODE_ISP);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_ClearIN();
}
/** Handler for the CMD_PROGRAM_FLASH_ISP and CMD_PROGRAM_EEPROM_ISP commands, writing out bytes,
* words or pages of data to the attached device.
*
* \param[in] V2Command Issued V2 Protocol command byte from the host
*/
void ISPProtocol_ProgramMemory(uint8_t V2Command)
{
struct
{
uint16_t BytesToWrite;
uint8_t ProgrammingMode;
uint8_t DelayMS;
uint8_t ProgrammingCommands[3];
uint8_t PollValue1;
uint8_t PollValue2;
uint8_t ProgData[256]; // Note, the Jungo driver has a very short ACK timeout period, need to buffer the
} Write_Memory_Params; // whole page and ACK the packet as fast as possible to prevent it from aborting
Endpoint_Read_Stream_LE(&Write_Memory_Params, (sizeof(Write_Memory_Params) -
sizeof(Write_Memory_Params.ProgData)));
Write_Memory_Params.BytesToWrite = SwapEndian_16(Write_Memory_Params.BytesToWrite);
if (Write_Memory_Params.BytesToWrite > sizeof(Write_Memory_Params.ProgData))
{
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(STATUS_CMD_FAILED);
Endpoint_ClearIN();
return;
}
Endpoint_Read_Stream_LE(&Write_Memory_Params.ProgData, Write_Memory_Params.BytesToWrite);
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
uint8_t ProgrammingStatus = STATUS_CMD_OK;
uint16_t PollAddress = 0;
uint8_t PollValue = (V2Command == CMD_PROGRAM_FLASH_ISP) ? Write_Memory_Params.PollValue1 :
Write_Memory_Params.PollValue2;
uint8_t* NextWriteByte = Write_Memory_Params.ProgData;
if (MustSetAddress)
{
if (CurrentAddress & (1UL << 31))
ISPTarget_LoadExtendedAddress();
MustSetAddress = false;
}
if (Write_Memory_Params.ProgrammingMode & PROG_MODE_PAGED_WRITES_MASK)
{
uint16_t StartAddress = (CurrentAddress & 0xFFFF);
/* Paged mode memory programming */
for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)
{
bool IsOddByte = (CurrentByte & 0x01);
uint8_t ByteToWrite = *(NextWriteByte++);
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[0] |= READ_WRITE_HIGH_BYTE_MASK;
else
Write_Memory_Params.ProgrammingCommands[0] &= ~READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);
SPI_SendByte(CurrentAddress >> 8);
SPI_SendByte(CurrentAddress & 0xFF);
SPI_SendByte(ByteToWrite);
if (!(PollAddress) && (ByteToWrite != PollValue))
{
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;
PollAddress = (CurrentAddress & 0xFFFF);
}
if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))
CurrentAddress++;
}
/* If the current page must be committed, send the PROGRAM PAGE command to the target */
if (Write_Memory_Params.ProgrammingMode & PROG_MODE_COMMIT_PAGE_MASK)
{
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[1]);
SPI_SendByte(StartAddress >> 8);
SPI_SendByte(StartAddress & 0xFF);
SPI_SendByte(0x00);
/* Check if polling is possible, if not switch to timed delay mode */
if (!(PollAddress))
{
Write_Memory_Params.ProgrammingMode &= ~PROG_MODE_PAGED_VALUE_MASK;
Write_Memory_Params.ProgrammingMode |= PROG_MODE_PAGED_TIMEDELAY_MASK;
}
ProgrammingStatus = ISPTarget_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);
}
}
else
{
/* Word/byte mode memory programming */
for (uint16_t CurrentByte = 0; CurrentByte < Write_Memory_Params.BytesToWrite; CurrentByte++)
{
bool IsOddByte = (CurrentByte & 0x01);
uint8_t ByteToWrite = *(NextWriteByte++);
if (IsOddByte && (V2Command == CMD_READ_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[0] |= READ_WRITE_HIGH_BYTE_MASK;
else
Write_Memory_Params.ProgrammingCommands[0] &= ~READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Write_Memory_Params.ProgrammingCommands[0]);
SPI_SendByte(CurrentAddress >> 8);
SPI_SendByte(CurrentAddress & 0xFF);
SPI_SendByte(ByteToWrite);
if (ByteToWrite != PollValue)
{
if (IsOddByte && (V2Command == CMD_PROGRAM_FLASH_ISP))
Write_Memory_Params.ProgrammingCommands[2] |= READ_WRITE_HIGH_BYTE_MASK;
PollAddress = (CurrentAddress & 0xFFFF);
}
if (IsOddByte || (V2Command == CMD_PROGRAM_EEPROM_ISP))
CurrentAddress++;
ProgrammingStatus = ISPTarget_WaitForProgComplete(Write_Memory_Params.ProgrammingMode, PollAddress, PollValue,
Write_Memory_Params.DelayMS, Write_Memory_Params.ProgrammingCommands[2]);
if (ProgrammingStatus != STATUS_CMD_OK)
break;
}
}
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(ProgrammingStatus);
Endpoint_ClearIN();
}
/** Handler for the CMD_READ_FLASH_ISP and CMD_READ_EEPROM_ISP commands, reading in bytes,
* words or pages of data from the attached device.
*
* \param[in] V2Command Issued V2 Protocol command byte from the host
*/
void ISPProtocol_ReadMemory(uint8_t V2Command)
{
struct
{
uint16_t BytesToRead;
uint8_t ReadMemoryCommand;
} Read_Memory_Params;
Endpoint_Read_Stream_LE(&Read_Memory_Params, sizeof(Read_Memory_Params));
Read_Memory_Params.BytesToRead = SwapEndian_16(Read_Memory_Params.BytesToRead);
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(STATUS_CMD_OK);
if (MustSetAddress)
{
if (CurrentAddress & (1UL << 31))
ISPTarget_LoadExtendedAddress();
MustSetAddress = false;
}
for (uint16_t CurrentByte = 0; CurrentByte < Read_Memory_Params.BytesToRead; CurrentByte++)
{
bool IsOddByte = (CurrentByte & 0x01);
if (IsOddByte && (V2Command == CMD_READ_FLASH_ISP))
Read_Memory_Params.ReadMemoryCommand |= READ_WRITE_HIGH_BYTE_MASK;
else
Read_Memory_Params.ReadMemoryCommand &= ~READ_WRITE_HIGH_BYTE_MASK;
SPI_SendByte(Read_Memory_Params.ReadMemoryCommand);
SPI_SendByte(CurrentAddress >> 8);
SPI_SendByte(CurrentAddress & 0xFF);
Endpoint_Write_Byte(SPI_ReceiveByte());
/* Check if the endpoint bank is currently full */
if (!(Endpoint_IsReadWriteAllowed()))
{
Endpoint_ClearIN();
Endpoint_WaitUntilReady();
}
if ((IsOddByte && (V2Command == CMD_READ_FLASH_ISP)) || (V2Command == CMD_READ_EEPROM_ISP))
CurrentAddress++;
}
Endpoint_Write_Byte(STATUS_CMD_OK);
bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed());
Endpoint_ClearIN();
/* Ensure last packet is a short packet to terminate the transfer */
if (IsEndpointFull)
{
Endpoint_WaitUntilReady();
Endpoint_ClearIN();
Endpoint_WaitUntilReady();
}
}
/** Handler for the CMD_CHI_ERASE_ISP command, clearing the target's FLASH memory. */
void ISPProtocol_ChipErase(void)
{
struct
{
uint8_t EraseDelayMS;
uint8_t PollMethod;
uint8_t EraseCommandBytes[4];
} Erase_Chip_Params;
Endpoint_Read_Stream_LE(&Erase_Chip_Params, sizeof(Erase_Chip_Params));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
uint8_t ResponseStatus = STATUS_CMD_OK;
for (uint8_t SByte = 0; SByte < sizeof(Erase_Chip_Params.EraseCommandBytes); SByte++)
SPI_SendByte(Erase_Chip_Params.EraseCommandBytes[SByte]);
if (!(Erase_Chip_Params.PollMethod))
ISPProtocol_DelayMS(Erase_Chip_Params.EraseDelayMS);
else
ResponseStatus = ISPTarget_WaitWhileTargetBusy();
Endpoint_Write_Byte(CMD_CHIP_ERASE_ISP);
Endpoint_Write_Byte(ResponseStatus);
Endpoint_ClearIN();
}
/** Handler for the CMD_READ_FUSE_ISP, CMD_READ_LOCK_ISP, CMD_READ_SIGNATURE_ISP and CMD_READ_OSCCAL commands,
* reading the requested configuration byte from the device.
*
* \param[in] V2Command Issued V2 Protocol command byte from the host
*/
void ISPProtocol_ReadFuseLockSigOSCCAL(uint8_t V2Command)
{
struct
{
uint8_t RetByte;
uint8_t ReadCommandBytes[4];
} Read_FuseLockSigOSCCAL_Params;
Endpoint_Read_Stream_LE(&Read_FuseLockSigOSCCAL_Params, sizeof(Read_FuseLockSigOSCCAL_Params));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
uint8_t ResponseBytes[4];
for (uint8_t RByte = 0; RByte < sizeof(ResponseBytes); RByte++)
ResponseBytes[RByte] = SPI_TransferByte(Read_FuseLockSigOSCCAL_Params.ReadCommandBytes[RByte]);
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_Write_Byte(ResponseBytes[Read_FuseLockSigOSCCAL_Params.RetByte - 1]);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_ClearIN();
}
/** Handler for the CMD_WRITE_FUSE_ISP and CMD_WRITE_LOCK_ISP commands, writing the requested configuration
* byte to the device.
*
* \param[in] V2Command Issued V2 Protocol command byte from the host
*/
void ISPProtocol_WriteFuseLock(uint8_t V2Command)
{
struct
{
uint8_t WriteCommandBytes[4];
} Write_FuseLockSig_Params;
Endpoint_Read_Stream_LE(&Write_FuseLockSig_Params, sizeof(Write_FuseLockSig_Params));
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
for (uint8_t SByte = 0; SByte < sizeof(Write_FuseLockSig_Params.WriteCommandBytes); SByte++)
SPI_SendByte(Write_FuseLockSig_Params.WriteCommandBytes[SByte]);
Endpoint_Write_Byte(V2Command);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_ClearIN();
}
/** Handler for the CMD_SPI_MULTI command, writing and reading arbitrary SPI data to and from the attached device. */
void ISPProtocol_SPIMulti(void)
{
struct
{
uint8_t TxBytes;
uint8_t RxBytes;
uint8_t RxStartAddr;
uint8_t TxData[255];
} SPI_Multi_Params;
Endpoint_Read_Stream_LE(&SPI_Multi_Params, sizeof(SPI_Multi_Params) - sizeof(SPI_Multi_Params.TxData));
Endpoint_Read_Stream_LE(&SPI_Multi_Params.TxData, SPI_Multi_Params.TxBytes);
Endpoint_ClearOUT();
Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
Endpoint_Write_Byte(CMD_SPI_MULTI);
Endpoint_Write_Byte(STATUS_CMD_OK);
uint8_t CurrTxPos = 0;
uint8_t CurrRxPos = 0;
/* Write out bytes to transmit until the start of the bytes to receive is met */
while (CurrTxPos < SPI_Multi_Params.RxStartAddr)
{
if (CurrTxPos < SPI_Multi_Params.TxBytes)
SPI_SendByte(SPI_Multi_Params.TxData[CurrTxPos]);
else
SPI_SendByte(0);
CurrTxPos++;
}
/* Transmit remaining bytes with padding as needed, read in response bytes */
while (CurrRxPos < SPI_Multi_Params.RxBytes)
{
if (CurrTxPos < SPI_Multi_Params.TxBytes)
Endpoint_Write_Byte(SPI_TransferByte(SPI_Multi_Params.TxData[CurrTxPos++]));
else
Endpoint_Write_Byte(SPI_ReceiveByte());
CurrRxPos++;
}
Endpoint_Write_Byte(STATUS_CMD_OK);
Endpoint_ClearIN();
}
#endif

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Projects/AVRISP/Lib/ISP/ISPProtocol.h Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, 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
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* Header file for ISPProtocol.c.
*/
#ifndef _ISP_PROTOCOL_
#define _ISP_PROTOCOL_
/* Includes: */
#include <avr/io.h>
#include "V2Protocol.h"
/* Preprocessor Checks: */
#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
#undef ENABLE_ISP_PROTOCOL
#undef ENABLE_TPI_PROTOCOL
#if !defined(ENABLE_PDI_PROTOCOL)
#define ENABLE_PDI_PROTOCOL
#endif
#endif
/* Macros: */
/** Mask for the reading or writing of the high byte in a FLASH word when issuing a low-level programming command */
#define READ_WRITE_HIGH_BYTE_MASK (1 << 3)
#define PROG_MODE_PAGED_WRITES_MASK (1 << 0)
#define PROG_MODE_WORD_TIMEDELAY_MASK (1 << 1)
#define PROG_MODE_WORD_VALUE_MASK (1 << 2)
#define PROG_MODE_WORD_READYBUSY_MASK (1 << 3)
#define PROG_MODE_PAGED_TIMEDELAY_MASK (1 << 4)
#define PROG_MODE_PAGED_VALUE_MASK (1 << 5)
#define PROG_MODE_PAGED_READYBUSY_MASK (1 << 6)
#define PROG_MODE_COMMIT_PAGE_MASK (1 << 7)
/* Inline Functions: */
/** Blocking delay for a given number of milliseconds, via a hardware timer.
*
* \param[in] DelayMS Number of milliseconds to delay for
*/
static inline void ISPProtocol_DelayMS(uint8_t DelayMS)
{
TCNT0 = 0;
TIFR0 = (1 << OCF1A);
while (DelayMS)
{
if (TIFR0 & (1 << OCF1A))
{
TIFR0 = (1 << OCF1A);
DelayMS--;
}
}
}
/* Function Prototypes: */
void ISPProtocol_EnterISPMode(void);
void ISPProtocol_LeaveISPMode(void);
void ISPProtocol_ProgramMemory(const uint8_t V2Command);
void ISPProtocol_ReadMemory(const uint8_t V2Command);
void ISPProtocol_ChipErase(void);
void ISPProtocol_ReadFuseLockSigOSCCAL(const uint8_t V2Command);
void ISPProtocol_WriteFuseLock(const uint8_t V2Command);
void ISPProtocol_SPIMulti(void);
#endif

202
Projects/AVRISP/Lib/ISP/ISPTarget.c Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, 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
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* Target-related functions for the ISP Protocol decoder.
*/
#include "ISPTarget.h"
#if defined(ENABLE_ISP_PROTOCOL) || defined(__DOXYGEN__)
/** Converts the given AVR Studio SCK duration parameter (set by a SET PARAM command from the host) to the nearest
* possible SPI clock prescaler mask for passing to the SPI_Init() routine.
*
* \return Nearest SPI prescaler mask for the given SCK frequency
*/
uint8_t ISPTarget_GetSPIPrescalerMask(void)
{
static const uint8_t SPIMaskFromSCKDuration[] =
{
#if (F_CPU == 8000000)
SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 4MHz SPI
SPI_SPEED_FCPU_DIV_2, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI
SPI_SPEED_FCPU_DIV_4, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI
SPI_SPEED_FCPU_DIV_8, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI
SPI_SPEED_FCPU_DIV_16, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI
SPI_SPEED_FCPU_DIV_32, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI
SPI_SPEED_FCPU_DIV_64 // AVRStudio = 125KHz SPI, Actual = 125KHz SPI
#elif (F_CPU == 16000000)
SPI_SPEED_FCPU_DIV_2, // AVRStudio = 8MHz SPI, Actual = 8MHz SPI
SPI_SPEED_FCPU_DIV_4, // AVRStudio = 4MHz SPI, Actual = 4MHz SPI
SPI_SPEED_FCPU_DIV_8, // AVRStudio = 2MHz SPI, Actual = 2MHz SPI
SPI_SPEED_FCPU_DIV_16, // AVRStudio = 1MHz SPI, Actual = 1MHz SPI
SPI_SPEED_FCPU_DIV_32, // AVRStudio = 500KHz SPI, Actual = 500KHz SPI
SPI_SPEED_FCPU_DIV_64, // AVRStudio = 250KHz SPI, Actual = 250KHz SPI
SPI_SPEED_FCPU_DIV_128 // AVRStudio = 125KHz SPI, Actual = 125KHz SPI
#else
#error No SPI prescaler masks for chosen F_CPU speed.
#endif
};
uint8_t SCKDuration = V2Params_GetParameterValue(PARAM_SCK_DURATION);
if (SCKDuration >= sizeof(SPIMaskFromSCKDuration))
SCKDuration = (sizeof(SPIMaskFromSCKDuration) - 1);
return SPIMaskFromSCKDuration[SCKDuration];
}
/** Asserts or deasserts the target's reset line, using the correct polarity as set by the host using a SET PARAM command.
* When not asserted, the line is tristated so as not to interfere with normal device operation.
*
* \param[in] ResetTarget Boolean true when the target should be held in reset, false otherwise
*/
void ISPTarget_ChangeTargetResetLine(const bool ResetTarget)
{
if (ResetTarget)
{
RESET_LINE_DDR |= RESET_LINE_MASK;
if (!(V2Params_GetParameterValue(PARAM_RESET_POLARITY)))
RESET_LINE_PORT |= RESET_LINE_MASK;
}
else
{
RESET_LINE_DDR &= ~RESET_LINE_MASK;
RESET_LINE_PORT &= ~RESET_LINE_MASK;
}
}
/** Waits until the last issued target memory programming command has completed, via the check mode given and using
* the given parameters.
*
* \param[in] ProgrammingMode Programming mode used and completion check to use, a mask of PROG_MODE_* constants
* \param[in] PollAddress Memory address to poll for completion if polling check mode used
* \param[in] PollValue Poll value to check against if polling check mode used
* \param[in] DelayMS Milliseconds to delay before returning if delay check mode used
* \param[in] ReadMemCommand Device low-level READ MEMORY command to send if value check mode used
*
* \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT or
* \ref STATUS_CMD_TOUT otherwise
*/
uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress, const uint8_t PollValue,
const uint8_t DelayMS, const uint8_t ReadMemCommand)
{
uint8_t ProgrammingStatus = STATUS_CMD_OK;
/* Determine method of Programming Complete check */
switch (ProgrammingMode & ~(PROG_MODE_PAGED_WRITES_MASK | PROG_MODE_COMMIT_PAGE_MASK))
{
case PROG_MODE_WORD_TIMEDELAY_MASK:
case PROG_MODE_PAGED_TIMEDELAY_MASK:
ISPProtocol_DelayMS(DelayMS);
break;
case PROG_MODE_WORD_VALUE_MASK:
case PROG_MODE_PAGED_VALUE_MASK:
TCNT0 = 0;
TIFR0 = (1 << OCF1A);
uint8_t TimeoutMS = TARGET_BUSY_TIMEOUT_MS;
do
{
SPI_SendByte(ReadMemCommand);
SPI_SendByte(PollAddress >> 8);
SPI_SendByte(PollAddress & 0xFF);
if (TIFR0 & (1 << OCF1A))
{
TIFR0 = (1 << OCF1A);
TimeoutMS--;
}
}
while ((SPI_TransferByte(0x00) != PollValue) && TimeoutMS);
if (!(TimeoutMS))
ProgrammingStatus = STATUS_CMD_TOUT;
break;
case PROG_MODE_WORD_READYBUSY_MASK:
case PROG_MODE_PAGED_READYBUSY_MASK:
ProgrammingStatus = ISPTarget_WaitWhileTargetBusy();
break;
}
return ProgrammingStatus;
}
/** Waits until the target has completed the last operation, by continuously polling the device's
* BUSY flag until it is cleared, or until the \ref TARGET_BUSY_TIMEOUT_MS timeout period has expired.
*
* \return V2 Protocol status \ref STATUS_CMD_OK if the no timeout occurred, \ref STATUS_RDY_BSY_TOUT otherwise
*/
uint8_t ISPTarget_WaitWhileTargetBusy(void)
{
TCNT0 = 0;
TIFR0 = (1 << OCF1A);
uint8_t TimeoutMS = TARGET_BUSY_TIMEOUT_MS;
do
{
SPI_SendByte(0xF0);
SPI_SendByte(0x00);
SPI_SendByte(0x00);
if (TIFR0 & (1 << OCF1A))
{
TIFR0 = (1 << OCF1A);
TimeoutMS--;
}
}
while ((SPI_ReceiveByte() & 0x01) && TimeoutMS);
if (!(TimeoutMS))
return STATUS_RDY_BSY_TOUT;
else
return STATUS_CMD_OK;
}
/** Sends a low-level LOAD EXTENDED ADDRESS command to the target, for addressing of memory beyond the
* 64KB boundary. This sends the command with the correct address as indicated by the current address
* pointer variable set by the host when a SET ADDRESS command is issued.
*/
void ISPTarget_LoadExtendedAddress(void)
{
SPI_SendByte(0x4D);
SPI_SendByte(0x00);
SPI_SendByte((CurrentAddress & 0x00FF0000) >> 16);
SPI_SendByte(0x00);
}
#endif

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Projects/AVRISP/Lib/ISP/ISPTarget.h Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2009.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, 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
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* Header file for ISPTarget.c.
*/
#ifndef _ISP_TARGET_
#define _ISP_TARGET_
/* Includes: */
#include <avr/io.h>
#include <util/delay.h>
#include <LUFA/Drivers/USB/USB.h>
#include <LUFA/Drivers/Peripheral/SPI.h>
#include "../Descriptors.h"
#include "V2ProtocolConstants.h"
#include "V2ProtocolParams.h"
/* Preprocessor Checks: */
#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
#undef ENABLE_ISP_PROTOCOL
#undef ENABLE_TPI_PROTOCOL
#if !defined(ENABLE_PDI_PROTOCOL)
#define ENABLE_PDI_PROTOCOL
#endif
#endif
/* Macros: */
/** Total number of allowable ISP programming speeds supported by the device */
#define TOTAL_ISP_PROGRAMMING_SPEEDS 7
/** Timeout in milliseconds of target busy-wait loops waiting for a command to complete */
#define TARGET_BUSY_TIMEOUT_MS 100
/* Function Prototypes: */
uint8_t ISPTarget_GetSPIPrescalerMask(void);
void ISPTarget_ChangeTargetResetLine(const bool ResetTarget);
uint8_t ISPTarget_WaitForProgComplete(const uint8_t ProgrammingMode, const uint16_t PollAddress,
const uint8_t PollValue, const uint8_t DelayMS,
const uint8_t ReadMemCommand);
uint8_t ISPTarget_WaitWhileTargetBusy(void);
void ISPTarget_LoadExtendedAddress(void);
#endif