/*\r
LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
+ Copyright (C) Dean Camera, 2010.\r
\r
dean [at] fourwalledcubicle [dot] com\r
www.fourwalledcubicle.com\r
*/\r
\r
/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting\r
- documentation, and that the name of the author not be used in\r
- advertising or publicity pertaining to distribution of the\r
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+ Permission to use, copy, modify, distribute, and sell this \r
+ software and its documentation for any purpose is hereby granted\r
+ without fee, provided that the above copyright notice appear in \r
+ all copies and that both that the copyright notice and this\r
+ permission notice and warranty disclaimer appear in supporting \r
+ documentation, and that the name of the author not be used in \r
+ advertising or publicity pertaining to distribution of the \r
software without specific, written prior permission.\r
\r
The author disclaim all warranties with regard to this\r
if (!(XMEGANVM_WaitWhileNVMControllerBusy()))\r
return false;\r
\r
- uint32_t MemoryCRC = 0;\r
- \r
- /* Read the first generated CRC byte value */\r
- XPROGTarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));\r
+ /* Load the PDI pointer register with the DAT0 register start address */\r
+ XPROGTarget_SendByte(PDI_CMD_ST | (PDI_POINTER_DIRECT << 2) | PDI_DATSIZE_4BYTES);\r
XMEGANVM_SendNVMRegAddress(XMEGA_NVM_REG_DAT0);\r
- MemoryCRC = XPROGTarget_ReceiveByte();\r
-\r
- /* Read the second generated CRC byte value */\r
- XPROGTarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));\r
- XMEGANVM_SendNVMRegAddress(XMEGA_NVM_REG_DAT1);\r
- MemoryCRC |= ((uint16_t)XPROGTarget_ReceiveByte() << 8);\r
\r
- /* Read the third generated CRC byte value */\r
- XPROGTarget_SendByte(PDI_CMD_LDS | (PDI_DATSIZE_4BYTES << 2));\r
- XMEGANVM_SendNVMRegAddress(XMEGA_NVM_REG_DAT2);\r
- MemoryCRC |= ((uint32_t)XPROGTarget_ReceiveByte() << 16);\r
+ /* Send the REPEAT command to grab the CRC bytes */\r
+ XPROGTarget_SendByte(PDI_CMD_REPEAT | PDI_DATSIZE_1BYTE);\r
+ XPROGTarget_SendByte(XMEGA_CRC_LENGTH - 1);\r
\r
- *CRCDest = MemoryCRC;\r
+ /* Read in the CRC bytes from the target */\r
+ XPROGTarget_SendByte(PDI_CMD_LD | (PDI_POINTER_INDIRECT_PI << 2) | PDI_DATSIZE_1BYTE);\r
+ for (uint8_t i = 0; i < XMEGA_CRC_LENGTH; i++)\r
+ ((uint8_t*)CRCDest)[i] = XPROGTarget_ReceiveByte();\r
\r
return true;\r
}\r
/** Writes byte addressed memory to the target's memory spaces.\r
*\r
* \param[in] WriteCommand Command to send to the device to write each memory byte\r
- * \param[in] WriteAddress Start address to write to within the target's address space\r
- * \param[in] WriteBuffer Buffer to source data from\r
+ * \param[in] WriteAddress Address to write to within the target's address space\r
+ * \param[in] Byte Byte to write to the target\r
*\r
* \return Boolean true if the command sequence complete successfully\r
*/\r
-bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)\r
+bool XMEGANVM_WriteByteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t Byte)\r
{\r
/* Wait until the NVM controller is no longer busy */\r
if (!(XMEGANVM_WaitWhileNVMControllerBusy()))\r
/* Send new memory byte to the memory to the target */\r
XPROGTarget_SendByte(PDI_CMD_STS | (PDI_DATSIZE_4BYTES << 2));\r
XMEGANVM_SendAddress(WriteAddress);\r
- XPROGTarget_SendByte(*(WriteBuffer++));\r
+ XPROGTarget_SendByte(Byte);\r
\r
return true;\r
}\r