LPC812 programming via SWD

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LPC812 programming via SWD

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Contributor I

LPC812   programming via  SWD, Now all  Command is run ok,but only  "Copy RAM  to Flash"   is not OK, it return CMD_SUCCESS, but no any data wirte to flash,why?

  JF]H3VPI9)UYX0~EXY90@VP.png

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Contributor I

Any  one answered?

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NXP Employee
NXP Employee

Hi,

Please check the below threads,

LPC812 IAP Copy Command not Affecting Destination 

LPC 822 ISP Write to RAM echoes correctly, but OK response never received! 

Have a great day,
Sol

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Contributor I

HI:

    Thank you for your answer , These do not help me .

     The following is the code :  

//=================================================================

     uint8_t LPC8xx_Sector_Write(uint32_t FlashAddr, uint8_t *dat,uint32_t Size)
{
 uint32_t SectorN;
 rtv=swd_write_block(CopyRamAddr,dat,Size);
 if (rtv>0) return 1;
 SectorN=FlashAddr>>10;
 cmddat[0]=50;cmddat[1]=SectorN;cmddat[2]=SectorN;
 Flash_cmd(cmddat,3);
 rtv=LPC_FLASH_Busy();
 if (rtv>0) return 1; 
 cmddat[0]=51;
 cmddat[1]=FlashAddr;
 cmddat[2]=CopyRamAddr,;
 cmddat[3]=Size;
 cmddat[4]=12000;
 Flash_cmd(cmddat,5);
 rtv=LPC_FLASH_Busy();
 if (rtv>0) return 2; 
 return rtv;
}

//=====================================================================

1. Of course  ,first erase sector,  read this  sector   flash   is all 0xff.  flash have  data  before.

2.  then  Sector_Write,  Confirm return CMD_SUCCESS,  if  I use  error  flash address,  return  DST_ADDR_ERROR,  if I use error Size it return COUNT_ERROR, I think   this  "uint8_t LPC8xx_Sector_Write(uint32_t FlashAddr, uint8_t *dat,uint32_t Size)"   code  no error.  I don't know  it is return CMD_SUCCESS,  Why no data is written ?

3.   All data are also verified by Jlink tool

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19 Views
Contributor I

Hi, 

   it no help g

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