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Diff: IAP.c
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/IAP.c Wed Apr 13 15:01:16 2016 +0000 @@ -0,0 +1,321 @@ +/***************************************************************************** + * $Id$ + * + * Project: NXP LPC1700 Secondary Bootloader Example + * + * Description: Provides access to In-Application Programming (IAP) routines + * contained within the bootROM sector of LPC1100 devices. + * + * Copyright(C) 2010, NXP Semiconductor + * All rights reserved. + * + ***************************************************************************** + * Software that is described herein is for illustrative purposes only + * which provides customers with programming information regarding the + * products. This software is supplied "AS IS" without any warranties. + * NXP Semiconductors assumes no responsibility or liability for the + * use of the software, conveys no license or title under any patent, + * copyright, or mask work right to the product. NXP Semiconductors + * reserves the right to make changes in the software without + * notification. NXP Semiconductors also make no representation or + * warranty that such application will be suitable for the specified + * use without further testing or modification. + *****************************************************************************/ +#include "IAP.h" +#include <LPC17xx.h> + +/* IAP Command Definitions */ +#define IAP_CMD_PREPARE_SECTORS 50 +#define IAP_CMD_COPY_RAM_TO_FLASH 51 +#define IAP_CMD_ERASE_SECTORS 52 +#define IAP_CMD_BLANK_CHECK_SECTORS 53 +#define IAP_CMD_READ_PART_ID 54 +#define IAP_CMD_READ_BOOT_ROM_VERSION 55 +#define IAP_CMD_COMPARE 56 +#define IAP_CMD_REINVOKE_ISP 57 +#define IAP_CMD_READ_SERIAL_NUMBER 58 + +/* IAP boot ROM location and access function */ +#define IAP_ROM_LOCATION 0x1FFF1FF1UL +#define IAP_EXECUTE_CMD(a, b) ((void (*)())(IAP_ROM_LOCATION))(a, b) + +/***************************************************************************** +** Function name: u32IAP_PrepareSectors +** +** Description: Prepares sector(s) for erasing or write operations. This +** command must be executed before executing the "Copy RAM to +** Flash" or "Erase Sector(s)" commands. +** +** Parameters: u32StartSector - Number of first sector to prepare. +** u32EndSector - Number of last sector to prepare. +** +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_PrepareSectors(uint32_t u32StartSector, uint32_t u32EndSector) +{ + uint32_t u32Status; + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + if (u32EndSector < u32StartSector) + { + u32Status = IAP_STA_INVALD_PARAM; + } + else + { + au32Command[0] = IAP_CMD_PREPARE_SECTORS; + au32Command[1] = u32StartSector; + au32Command[2] = u32EndSector; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + u32Status = au32Result[0]; + } + return u32Status; +} + +/***************************************************************************** +** Function name: u32IAP_CopyRAMToFlash +** +** Description: Program the flash memory with data stored in RAM. +** +** Parameters: u32DstAddr - Destination Flash address, should be a 256 +** byte boundary. +** u32SrcAddr - Source RAM address, should be a word boundary +** u32Len - Number of 8-bit bytes to write, must be 256 +** 512, 1024, or 4096. +* +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_CopyRAMToFlash(uint32_t u32DstAddr, uint32_t u32SrcAddr, uint32_t u32Len) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + au32Command[0] = IAP_CMD_COPY_RAM_TO_FLASH; + au32Command[1] = u32DstAddr; + au32Command[2] = u32SrcAddr; + au32Command[3] = u32Len; + // au32Command[4] = SystemFrequency / 1000UL; /* Core clock frequency in kHz */ + au32Command[4] = SystemCoreClock1 / 1000UL; /* Core clock frequency in kHz */ + + IAP_EXECUTE_CMD(au32Command, au32Result); + + return au32Result[0]; +} + +/***************************************************************************** +** Function name: u32IAP_EraseSectors +** +** Description: Erase a sector or multiple sectors of on-chip Flash memory. +** +** Parameters: u32StartSector - Number of first sector to erase. +** u32EndSector - Number of last sector to erase. +* +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_EraseSectors(uint32_t u32StartSector, uint32_t u32EndSector) +{ + uint32_t u32Status; + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + if (u32EndSector < u32StartSector) + { + u32Status = IAP_STA_INVALD_PARAM; + } + else + { + au32Command[0] = IAP_CMD_ERASE_SECTORS; + au32Command[1] = u32StartSector; + au32Command[2] = u32EndSector; + au32Command[3] = SystemCoreClock1 / 1000UL; /* Core clock frequency in kHz */ + // au32Command[3] = /*SystemFrequency / 1000UL; /* Core clock frequency in kHz */ + + IAP_EXECUTE_CMD(au32Command, au32Result); + + u32Status = au32Result[0]; + } + return u32Status; +} + +/***************************************************************************** +** Function name: u32IAP_BlankCheckSectors +** +** Description: Blank check a sector or multiple sectors of on-chip flash +** memory. +** +** Parameters: u32StartSector - Number of first sector to check. +** u32EndSector - Number of last sector to check. +** pu32Result[0] - Offset of the first non blank word location +** if the Status Code is IAP_STA_SECTOR_NOT_BLANK. +** pu32Result[1] - Contents of non blank word location. +** +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_BlankCheckSectors(uint32_t u32StartSector, uint32_t u32EndSector, uint32_t *pu32Result) +{ + uint32_t u32Status; + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + if (u32EndSector < u32StartSector) + { + u32Status = IAP_STA_INVALD_PARAM; + } + else + { + au32Command[0] = IAP_CMD_BLANK_CHECK_SECTORS; + au32Command[1] = u32StartSector; + au32Command[2] = u32EndSector; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + if (au32Result[0] == IAP_STA_SECTOR_NOT_BLANK) + { + *pu32Result = au32Result[0]; + *(pu32Result + 1) = au32Result[1]; + } + u32Status = au32Result[0]; + } + return u32Status; +} + +/***************************************************************************** +** Function name: u32IAP_ReadPartID +** +** Description: Read the part identification number. +** +** Parameters: pu32PartID - Pointer to storage for part ID number. +* +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_ReadPartID(uint32_t *pu32PartID) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + au32Command[0] = IAP_CMD_READ_PART_ID; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + *pu32PartID = au32Result[1]; + + return au32Result[0]; +} + +/***************************************************************************** +** Function name: u32IAP_ReadBootVersion +** +** Description: Read the boot code version number. +** +** Parameters: pu32Major - Major version number in ASCII format. +** pu32Minor - Minor version number in ASCII format. +** +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_ReadBootVersion(uint32_t *pu32Major, uint32_t *pu32Minor) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + au32Command[0] = IAP_CMD_READ_BOOT_ROM_VERSION; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + *pu32Major = (au32Result[1] & 0x0000FF00UL) >> 8; + *pu32Minor = au32Result[1] & 0x000000FFUL; + + return au32Result[0]; +} + +/***************************************************************************** +** Function name: u32IAP_ReadBootVersion +** +** Description: Read the boot code version number. +** +** Parameters: pu32Major - Major version number in ASCII format. +** pu32Minor - Minor version number in ASCII format. +** +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +void u32IAP_ReadSerialNumber(uint32_t *pu32byte0, uint32_t *pu32byte1, + uint32_t *pu32byte2, uint32_t *pu32byte3) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + au32Command[0] = IAP_CMD_READ_SERIAL_NUMBER; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + *pu32byte0 = au32Result[0]; + *pu32byte1 = au32Result[1]; + *pu32byte2 = au32Result[2]; + *pu32byte3 = au32Result[3]; + + return; +} + +/***************************************************************************** +** Function name: u32IAP_Compare +** +** Description: Compares the memory contents at two locations. +** +** Parameters: u32Len - Number of bytes to compare, must be a multiple of 4. +** pu32Offset - Offset of the first mismatch if the Status Code is COMPARE_ERROR +** +** Returned value: Status code returned by IAP ROM function. +** +******************************************************************************/ +uint32_t u32IAP_Compare(uint32_t u32DstAddr, uint32_t u32SrcAddr, uint32_t u32Len, uint32_t *pu32Offset) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + au32Command[0] = IAP_CMD_COMPARE; + au32Command[1] = u32DstAddr; + au32Command[2] = u32SrcAddr; + au32Command[3] = u32Len; + + IAP_EXECUTE_CMD(au32Command, au32Result); + + if (au32Result[0] == IAP_STA_COMPARE_ERROR) + { + if (pu32Offset != 0) + { + *pu32Offset = au32Result[1]; + } + } + return au32Result[0]; +} + +/***************************************************************************** +** Function name: vIAP_ReinvokeISP +** +** Description: Invoke the bootloader in ISP mode. +** +** Parameters: None. +* +** Returned value: None. +** +******************************************************************************/ +void vIAP_ReinvokeISP(void) +{ + uint32_t au32Result[5]; + uint32_t au32Command[5]; + + au32Command[0] = IAP_CMD_REINVOKE_ISP; + + IAP_EXECUTE_CMD(au32Command, au32Result); +} + +/***************************************************************************** + ** End Of File + *****************************************************************************/ \ No newline at end of file