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Fixed PDI/TPI programming speed of ~250KHz in the AVRISP-MKII Clone project, instead...
[pub/USBasp.git] / Projects / AVRISP-MKII / Lib / XPROG / XPROGProtocol.c
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
index f2c2674..02fbbf4 100644 (file)
--- a/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
+++ b/Projects/AVRISP-MKII/Lib/XPROG/XPROGProtocol.c
@@ -1,21 +1,21 @@
 /*
              LUFA Library
      Copyright (C) Dean Camera, 2010.
 /*
              LUFA Library
      Copyright (C) Dean Camera, 2010.
-              
+
   dean [at] fourwalledcubicle [dot] com
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
 */
 
 /*
   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
   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
   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
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -61,18 +61,18 @@ void XPROGProtocol_SetMode(void)
        {
                uint8_t Protocol;
        } SetMode_XPROG_Params;
        {
                uint8_t Protocol;
        } SetMode_XPROG_Params;
-       
+
        Endpoint_Read_Stream_LE(&SetMode_XPROG_Params, sizeof(SetMode_XPROG_Params), NO_STREAM_CALLBACK);
 
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_Read_Stream_LE(&SetMode_XPROG_Params, sizeof(SetMode_XPROG_Params), NO_STREAM_CALLBACK);
 
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-       
+
        XPROG_SelectedProtocol = SetMode_XPROG_Params.Protocol;
        XPROG_SelectedProtocol = SetMode_XPROG_Params.Protocol;
-       
+
        Endpoint_Write_Byte(CMD_XPROG_SETMODE);
        Endpoint_Write_Byte((SetMode_XPROG_Params.Protocol != XPRG_PROTOCOL_JTAG) ? STATUS_CMD_OK : STATUS_CMD_FAILED);
        Endpoint_Write_Byte(CMD_XPROG_SETMODE);
        Endpoint_Write_Byte((SetMode_XPROG_Params.Protocol != XPRG_PROTOCOL_JTAG) ? STATUS_CMD_OK : STATUS_CMD_FAILED);
-       Endpoint_ClearIN();     
+       Endpoint_ClearIN();
 }
 
 /** Handler for the CMD_XPROG command, which wraps up XPROG commands in a V2 wrapper which need to be
 }
 
 /** Handler for the CMD_XPROG command, which wraps up XPROG commands in a V2 wrapper which need to be
@@ -81,7 +81,7 @@ void XPROGProtocol_SetMode(void)
 void XPROGProtocol_Command(void)
 {
        uint8_t XPROGCommand = Endpoint_Read_Byte();
 void XPROGProtocol_Command(void)
 {
        uint8_t XPROGCommand = Endpoint_Read_Byte();
-       
+
        switch (XPROGCommand)
        {
                case XPRG_CMD_ENTER_PROGMODE:
        switch (XPROGCommand)
        {
                case XPRG_CMD_ENTER_PROGMODE:
@@ -114,8 +114,8 @@ static void XPROGProtocol_EnterXPROGMode(void)
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-       
-       bool NVMBusEnabled;
+
+       bool NVMBusEnabled = false;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
@@ -123,39 +123,39 @@ static void XPROGProtocol_EnterXPROGMode(void)
                XPROGTarget_EnableTargetPDI();
 
                /* Store the RESET key into the RESET PDI register to keep the XMEGA in reset */
                XPROGTarget_EnableTargetPDI();
 
                /* Store the RESET key into the RESET PDI register to keep the XMEGA in reset */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);     
+               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
                XPROGTarget_SendByte(PDI_RESET_KEY);
 
                /* Lower direction change guard time to 0 USART bits */
                XPROGTarget_SendByte(PDI_RESET_KEY);
 
                /* Lower direction change guard time to 0 USART bits */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);      
+               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_CTRL_REG);
                XPROGTarget_SendByte(0x07);
 
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
                XPROGTarget_SendByte(0x07);
 
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
-               XPROGTarget_SendByte(PDI_CMD_KEY);      
+               XPROGTarget_SendByte(PDI_CMD_KEY);
                for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)
                  XPROGTarget_SendByte(PDI_NVMENABLE_KEY[i - 1]);
 
                /* Wait until the NVM bus becomes active */
                NVMBusEnabled = XMEGANVM_WaitWhileNVMBusBusy();
        }
                for (uint8_t i = sizeof(PDI_NVMENABLE_KEY); i > 0; i--)
                  XPROGTarget_SendByte(PDI_NVMENABLE_KEY[i - 1]);
 
                /* Wait until the NVM bus becomes active */
                NVMBusEnabled = XMEGANVM_WaitWhileNVMBusBusy();
        }
-       else
+       else if (XPROG_SelectedProtocol == XPRG_PROTOCOL_TPI)
        {
                /* Enable TPI programming mode with the attached target */
                XPROGTarget_EnableTargetTPI();
        {
                /* Enable TPI programming mode with the attached target */
                XPROGTarget_EnableTargetTPI();
-               
+
                /* Lower direction change guard time to 0 USART bits */
                XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
                XPROGTarget_SendByte(0x07);
                /* Lower direction change guard time to 0 USART bits */
                XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
                XPROGTarget_SendByte(0x07);
-               
+
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
                /* Enable access to the XPROG NVM bus by sending the documented NVM access key to the device */
-               XPROGTarget_SendByte(TPI_CMD_SKEY);     
+               XPROGTarget_SendByte(TPI_CMD_SKEY);
                for (uint8_t i = sizeof(TPI_NVMENABLE_KEY); i > 0; i--)
                  XPROGTarget_SendByte(TPI_NVMENABLE_KEY[i - 1]);
 
                /* Wait until the NVM bus becomes active */
                NVMBusEnabled = TINYNVM_WaitWhileNVMBusBusy();
        }
                for (uint8_t i = sizeof(TPI_NVMENABLE_KEY); i > 0; i--)
                  XPROGTarget_SendByte(TPI_NVMENABLE_KEY[i - 1]);
 
                /* Wait until the NVM bus becomes active */
                NVMBusEnabled = TINYNVM_WaitWhileNVMBusBusy();
        }
-       
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);
        Endpoint_Write_Byte(NVMBusEnabled ? XPRG_ERR_OK : XPRG_ERR_FAILED);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);
        Endpoint_Write_Byte(NVMBusEnabled ? XPRG_ERR_OK : XPRG_ERR_FAILED);
@@ -170,17 +170,17 @@ static void XPROGProtocol_LeaveXPROGMode(void)
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-       
+
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
                XMEGANVM_WaitWhileNVMBusBusy();
 
                /* Clear the RESET key in the RESET PDI register to allow the XMEGA to run */
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
                XMEGANVM_WaitWhileNVMBusBusy();
 
                /* Clear the RESET key in the RESET PDI register to allow the XMEGA to run */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);     
+               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
                XPROGTarget_SendByte(0x00);
 
                /* Do it twice to make sure it takes affect (silicon bug?) */
                XPROGTarget_SendByte(0x00);
 
                /* Do it twice to make sure it takes affect (silicon bug?) */
-               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);     
+               XPROGTarget_SendByte(PDI_CMD_STCS | PDI_RESET_REG);
                XPROGTarget_SendByte(0x00);
 
                XPROGTarget_DisableTargetPDI();
                XPROGTarget_SendByte(0x00);
 
                XPROGTarget_DisableTargetPDI();
@@ -190,12 +190,12 @@ static void XPROGProtocol_LeaveXPROGMode(void)
                TINYNVM_WaitWhileNVMBusBusy();
 
                /* Clear the NVMEN bit in the TPI CONTROL register to disable TPI mode */
                TINYNVM_WaitWhileNVMBusBusy();
 
                /* Clear the NVMEN bit in the TPI CONTROL register to disable TPI mode */
-               XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);     
+               XPROGTarget_SendByte(TPI_CMD_SSTCS | TPI_CTRL_REG);
                XPROGTarget_SendByte(0x00);
                XPROGTarget_SendByte(0x00);
-       
+
                XPROGTarget_DisableTargetTPI();
        }
                XPROGTarget_DisableTargetTPI();
        }
-       
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);
        Endpoint_Write_Byte(XPRG_ERR_OK);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);
        Endpoint_Write_Byte(XPRG_ERR_OK);
@@ -219,11 +219,11 @@ static void XPROGProtocol_Erase(void)
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-       
+
        uint8_t EraseCommand;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        uint8_t EraseCommand;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
-       {       
+       {
                /* Determine which NVM command to send to the device depending on the memory to erase */
                switch (Erase_XPROG_Params.MemoryType)
                {
                /* Determine which NVM command to send to the device depending on the memory to erase */
                switch (Erase_XPROG_Params.MemoryType)
                {
@@ -255,7 +255,7 @@ static void XPROGProtocol_Erase(void)
                                EraseCommand = XMEGA_NVM_CMD_NOOP;
                                break;
                }
                                EraseCommand = XMEGA_NVM_CMD_NOOP;
                                break;
                }
-               
+
                /* Erase the target memory, indicate timeout if occurred */
                if (!(XMEGANVM_EraseMemory(EraseCommand, Erase_XPROG_Params.Address)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
                /* Erase the target memory, indicate timeout if occurred */
                if (!(XMEGANVM_EraseMemory(EraseCommand, Erase_XPROG_Params.Address)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
@@ -266,16 +266,16 @@ static void XPROGProtocol_Erase(void)
                  EraseCommand = TINY_NVM_CMD_CHIPERASE;
                else
                  EraseCommand = TINY_NVM_CMD_SECTIONERASE;
                  EraseCommand = TINY_NVM_CMD_CHIPERASE;
                else
                  EraseCommand = TINY_NVM_CMD_SECTIONERASE;
-       
+
                /* Erase the target memory, indicate timeout if occurred */
                if (!(TINYNVM_EraseMemory(EraseCommand, Erase_XPROG_Params.Address)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
        }
                /* Erase the target memory, indicate timeout if occurred */
                if (!(TINYNVM_EraseMemory(EraseCommand, Erase_XPROG_Params.Address)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
        }
-       
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ERASE);
        Endpoint_Write_Byte(ReturnStatus);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_ERASE);
        Endpoint_Write_Byte(ReturnStatus);
-       Endpoint_ClearIN();     
+       Endpoint_ClearIN();
 }
 
 /** Handler for the XPROG WRITE_MEMORY command to write to a specific memory space within the attached device. */
 }
 
 /** Handler for the XPROG WRITE_MEMORY command to write to a specific memory space within the attached device. */
@@ -291,7 +291,7 @@ static void XPROGProtocol_WriteMemory(void)
                uint16_t Length;
                uint8_t  ProgData[256];
        } WriteMemory_XPROG_Params;
                uint16_t Length;
                uint8_t  ProgData[256];
        } WriteMemory_XPROG_Params;
-       
+
        Endpoint_Read_Stream_LE(&WriteMemory_XPROG_Params, (sizeof(WriteMemory_XPROG_Params) -
                                                            sizeof(WriteMemory_XPROG_Params).ProgData), NO_STREAM_CALLBACK);
        WriteMemory_XPROG_Params.Address = SwapEndian_32(WriteMemory_XPROG_Params.Address);
        Endpoint_Read_Stream_LE(&WriteMemory_XPROG_Params, (sizeof(WriteMemory_XPROG_Params) -
                                                            sizeof(WriteMemory_XPROG_Params).ProgData), NO_STREAM_CALLBACK);
        WriteMemory_XPROG_Params.Address = SwapEndian_32(WriteMemory_XPROG_Params.Address);
@@ -309,7 +309,7 @@ static void XPROGProtocol_WriteMemory(void)
                uint8_t WriteBuffCommand = XMEGA_NVM_CMD_LOADFLASHPAGEBUFF;
                uint8_t EraseBuffCommand = XMEGA_NVM_CMD_ERASEFLASHPAGEBUFF;
                bool    PagedMemory      = true;
                uint8_t WriteBuffCommand = XMEGA_NVM_CMD_LOADFLASHPAGEBUFF;
                uint8_t EraseBuffCommand = XMEGA_NVM_CMD_ERASEFLASHPAGEBUFF;
                bool    PagedMemory      = true;
-               
+
                switch (WriteMemory_XPROG_Params.MemoryType)
                {
                        case XPRG_MEM_TYPE_APPL:
                switch (WriteMemory_XPROG_Params.MemoryType)
                {
                        case XPRG_MEM_TYPE_APPL:
@@ -321,11 +321,9 @@ static void XPROGProtocol_WriteMemory(void)
                        case XPRG_MEM_TYPE_EEPROM:
                                WriteCommand     = XMEGA_NVM_CMD_ERASEWRITEEEPROMPAGE;
                                WriteBuffCommand = XMEGA_NVM_CMD_LOADEEPROMPAGEBUFF;
                        case XPRG_MEM_TYPE_EEPROM:
                                WriteCommand     = XMEGA_NVM_CMD_ERASEWRITEEEPROMPAGE;
                                WriteBuffCommand = XMEGA_NVM_CMD_LOADEEPROMPAGEBUFF;
-                               EraseBuffCommand = XMEGA_NVM_CMD_ERASEEEPROMPAGEBUFF;                   
+                               EraseBuffCommand = XMEGA_NVM_CMD_ERASEEEPROMPAGEBUFF;
                                break;
                        case XPRG_MEM_TYPE_USERSIG:
                                break;
                        case XPRG_MEM_TYPE_USERSIG:
-                               /* User signature is paged, but needs us to manually indicate the mode bits since the host doesn't set them */
-                               WriteMemory_XPROG_Params.PageMode = (XPRG_PAGEMODE_ERASE | XPRG_PAGEMODE_WRITE);
                                WriteCommand     = XMEGA_NVM_CMD_WRITEUSERSIG;
                                break;
                        case XPRG_MEM_TYPE_FUSE:
                                WriteCommand     = XMEGA_NVM_CMD_WRITEUSERSIG;
                                break;
                        case XPRG_MEM_TYPE_FUSE:
@@ -337,9 +335,9 @@ static void XPROGProtocol_WriteMemory(void)
                                PagedMemory      = false;
                                break;
                }
                                PagedMemory      = false;
                                break;
                }
-               
+
                /* Send the appropriate memory write commands to the device, indicate timeout if occurred */
                /* Send the appropriate memory write commands to the device, indicate timeout if occurred */
-               if ((PagedMemory && !(XMEGANVM_WritePageMemory(WriteBuffCommand, EraseBuffCommand, WriteCommand, 
+               if ((PagedMemory && !(XMEGANVM_WritePageMemory(WriteBuffCommand, EraseBuffCommand, WriteCommand,
                                                                                                           WriteMemory_XPROG_Params.PageMode, WriteMemory_XPROG_Params.Address,
                                                                                                           WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length))) ||
                   (!PagedMemory && !(XMEGANVM_WriteByteMemory(WriteCommand, WriteMemory_XPROG_Params.Address,
                                                                                                           WriteMemory_XPROG_Params.PageMode, WriteMemory_XPROG_Params.Address,
                                                                                                           WriteMemory_XPROG_Params.ProgData, WriteMemory_XPROG_Params.Length))) ||
                   (!PagedMemory && !(XMEGANVM_WriteByteMemory(WriteCommand, WriteMemory_XPROG_Params.Address,
@@ -357,10 +355,10 @@ static void XPROGProtocol_WriteMemory(void)
                        ReturnStatus = XPRG_ERR_TIMEOUT;
                }
        }
                        ReturnStatus = XPRG_ERR_TIMEOUT;
                }
        }
-       
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_WRITE_MEM);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_WRITE_MEM);
-       Endpoint_Write_Byte(ReturnStatus);      
+       Endpoint_Write_Byte(ReturnStatus);
        Endpoint_ClearIN();
 }
 
        Endpoint_ClearIN();
 }
 
@@ -377,7 +375,7 @@ static void XPROGProtocol_ReadMemory(void)
                uint32_t Address;
                uint16_t Length;
        } ReadMemory_XPROG_Params;
                uint32_t Address;
                uint16_t Length;
        } ReadMemory_XPROG_Params;
-       
+
        Endpoint_Read_Stream_LE(&ReadMemory_XPROG_Params, sizeof(ReadMemory_XPROG_Params), NO_STREAM_CALLBACK);
        ReadMemory_XPROG_Params.Address = SwapEndian_32(ReadMemory_XPROG_Params.Address);
        ReadMemory_XPROG_Params.Length  = SwapEndian_16(ReadMemory_XPROG_Params.Length);
        Endpoint_Read_Stream_LE(&ReadMemory_XPROG_Params, sizeof(ReadMemory_XPROG_Params), NO_STREAM_CALLBACK);
        ReadMemory_XPROG_Params.Address = SwapEndian_32(ReadMemory_XPROG_Params.Address);
        ReadMemory_XPROG_Params.Length  = SwapEndian_16(ReadMemory_XPROG_Params.Length);
@@ -387,7 +385,7 @@ static void XPROGProtocol_ReadMemory(void)
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 
        uint8_t ReadBuffer[256];
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
 
        uint8_t ReadBuffer[256];
-       
+
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
                /* Read the PDI target's memory, indicate timeout if occurred */
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        {
                /* Read the PDI target's memory, indicate timeout if occurred */
@@ -404,10 +402,10 @@ static void XPROGProtocol_ReadMemory(void)
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_READ_MEM);
        Endpoint_Write_Byte(ReturnStatus);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_READ_MEM);
        Endpoint_Write_Byte(ReturnStatus);
-       
+
        if (ReturnStatus == XPRG_ERR_OK)
          Endpoint_Write_Stream_LE(ReadBuffer, ReadMemory_XPROG_Params.Length, NO_STREAM_CALLBACK);
        if (ReturnStatus == XPRG_ERR_OK)
          Endpoint_Write_Stream_LE(ReadBuffer, ReadMemory_XPROG_Params.Length, NO_STREAM_CALLBACK);
-       
+
        Endpoint_ClearIN();
 }
 
        Endpoint_ClearIN();
 }
 
@@ -417,18 +415,18 @@ static void XPROGProtocol_ReadMemory(void)
 static void XPROGProtocol_ReadCRC(void)
 {
        uint8_t ReturnStatus = XPRG_ERR_OK;
 static void XPROGProtocol_ReadCRC(void)
 {
        uint8_t ReturnStatus = XPRG_ERR_OK;
-       
+
        struct
        {
                uint8_t CRCType;
        } ReadCRC_XPROG_Params;
        struct
        {
                uint8_t CRCType;
        } ReadCRC_XPROG_Params;
-       
+
        Endpoint_Read_Stream_LE(&ReadCRC_XPROG_Params, sizeof(ReadCRC_XPROG_Params), NO_STREAM_CALLBACK);
 
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_Read_Stream_LE(&ReadCRC_XPROG_Params, sizeof(ReadCRC_XPROG_Params), NO_STREAM_CALLBACK);
 
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-       
+
        uint32_t MemoryCRC;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
        uint32_t MemoryCRC;
 
        if (XPROG_SelectedProtocol == XPRG_PROTOCOL_PDI)
@@ -448,7 +446,7 @@ static void XPROGProtocol_ReadCRC(void)
                                CRCCommand = XMEGA_NVM_CMD_FLASHCRC;
                                break;
                }
                                CRCCommand = XMEGA_NVM_CMD_FLASHCRC;
                                break;
                }
-               
+
                /* Perform and retrieve the memory CRC, indicate timeout if occurred */
                if (!(XMEGANVM_GetMemoryCRC(CRCCommand, &MemoryCRC)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
                /* Perform and retrieve the memory CRC, indicate timeout if occurred */
                if (!(XMEGANVM_GetMemoryCRC(CRCCommand, &MemoryCRC)))
                  ReturnStatus = XPRG_ERR_TIMEOUT;
@@ -458,18 +456,18 @@ static void XPROGProtocol_ReadCRC(void)
                /* TPI does not support memory CRC */
                ReturnStatus = XPRG_ERR_FAILED;
        }
                /* TPI does not support memory CRC */
                ReturnStatus = XPRG_ERR_FAILED;
        }
-       
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_CRC);
        Endpoint_Write_Byte(ReturnStatus);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_CRC);
        Endpoint_Write_Byte(ReturnStatus);
-       
+
        if (ReturnStatus == XPRG_ERR_OK)
        {
                Endpoint_Write_Byte(MemoryCRC >> 16);
        if (ReturnStatus == XPRG_ERR_OK)
        {
                Endpoint_Write_Byte(MemoryCRC >> 16);
-               Endpoint_Write_Word_LE(MemoryCRC & 0xFFFF);             
+               Endpoint_Write_Word_LE(MemoryCRC & 0xFFFF);
        }
        }
-       
-       Endpoint_ClearIN();     
+
+       Endpoint_ClearIN();
 }
 
 /** Handler for the XPROG SET_PARAM command to set a XPROG parameter for use when communicating with the
 }
 
 /** Handler for the XPROG SET_PARAM command to set a XPROG parameter for use when communicating with the
@@ -480,7 +478,7 @@ static void XPROGProtocol_SetParam(void)
        uint8_t ReturnStatus = XPRG_ERR_OK;
 
        uint8_t XPROGParam = Endpoint_Read_Byte();
        uint8_t ReturnStatus = XPRG_ERR_OK;
 
        uint8_t XPROGParam = Endpoint_Read_Byte();
-       
+
        /* Determine which parameter is being set, store the new parameter value */
        switch (XPROGParam)
        {
        /* Determine which parameter is being set, store the new parameter value */
        switch (XPROGParam)
        {
@@ -504,7 +502,7 @@ static void XPROGProtocol_SetParam(void)
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
        Endpoint_ClearOUT();
        Endpoint_SelectEndpoint(AVRISP_DATA_IN_EPNUM);
        Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);
-                 
+
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_SET_PARAM);
        Endpoint_Write_Byte(ReturnStatus);
        Endpoint_Write_Byte(CMD_XPROG);
        Endpoint_Write_Byte(XPRG_CMD_SET_PARAM);
        Endpoint_Write_Byte(ReturnStatus);
@@ -512,3 +510,4 @@ static void XPROGProtocol_SetParam(void)
 }
 
 #endif
 }
 
 #endif
+
USB isp AVR programmer