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IAP.c
- Committer:
- Kovalev_D
- Date:
- 2016-04-13
- Revision:
- 132:2c7bec5cf6fe
- Parent:
- IAP.cpp@ 130:1421dda4d7e7
- Child:
- 186:c7a9c309086c
File content as of revision 132:2c7bec5cf6fe:
/***************************************************************************** * $Id$ * * 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 *****************************************************************************/