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105 lines
3.5 KiB
105 lines
3.5 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, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all 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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* Target-related functions for the TINY target's NVM module.
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*/
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#define INCLUDE_FROM_TINYNVM_C
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#include "TINYNVM.h"
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#if defined(ENABLE_XPROG_PROTOCOL) || defined(__DOXYGEN__)
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#warning TPI Protocol support is currently incomplete and is not suitable for general use.
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/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read.
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*
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* \return Boolean true if the NVM controller became ready within the timeout period, false otherwise
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*/
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bool TINYNVM_WaitWhileNVMBusBusy(void)
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{
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/* Poll the STATUS register to check to see if NVM access has been enabled */
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while (TimeoutMSRemaining)
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{
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/* Send the SLDCS command to read the TPI STATUS register to see the NVM bus is active */
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XPROGTarget_SendByte(TPI_CMD_SLDCS | TPI_STATUS_REG);
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if (XPROGTarget_ReceiveByte() & TPI_STATUS_NVM)
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return true;
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}
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return false;
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}
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/** Reads memory from the target's memory spaces.
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*
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* \param[in] ReadAddress Start address to read from within the target's address space
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* \param[out] ReadBuffer Buffer to store read data into
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* \param[in] ReadSize Number of bytes to read
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*
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* \return Boolean true if the command sequence complete successfully
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*/
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bool TINYNVM_ReadMemory(const uint32_t ReadAddress, uint8_t* ReadBuffer, const uint16_t ReadSize)
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{
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// TODO
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return true;
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}
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/** Writes byte addressed memory to the target's memory spaces.
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*
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* \param[in] WriteCommand Command to send to the device to write each memory byte
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* \param[in] WriteAddress Start address to write to within the target's address space
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* \param[in] WriteBuffer Buffer to source data from
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*
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* \return Boolean true if the command sequence complete successfully
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*/
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bool TINYNVM_WriteMemory(const uint8_t WriteCommand, const uint32_t WriteAddress, const uint8_t* WriteBuffer)
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{
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// TODO
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return true;
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}
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/** Erases a specific memory space of the target.
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*
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* \param[in] EraseCommand NVM erase command to send to the device
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* \param[in] Address Address inside the memory space to erase
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*
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* \return Boolean true if the command sequence complete successfully
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*/
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bool TINYNVM_EraseMemory(const uint8_t EraseCommand, const uint32_t Address)
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{
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// TODO
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return true;
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}
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#endif
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