topic Flash Programming in Kinetis Microcontrollers

Flash Programming

东升王 — Fri, 12 Jun 2015 18:12:05 GMT

I used the SWD to program flash in KL05 demo board. In FCCOB I set Program Longword command. But sometimes in several words they return access error (FSTAT[ACCERR]); The read data is 0xFFFFFFFF. I must do the command again for those words. then it is OK.

Thank you

Re: Flash Programming

Rick_Li — Tue, 16 Jun 2015 06:11:12 GMT

Hi Wang Dongsheng,

Please be suggested to check CCIF first to make sure that there is no flash command is complete and then write 1 to this bit to launch the next longword program command.

If the problem still remains, then, please contact me again!

Re: Flash Programming

东升王 — Tue, 16 Jun 2015 16:28:03 GMT

Hi Li Yong

Actually I already did that in my code. Here are the some code. Sometimes it works well. sometimes in some words it return access error. these position always are 0xffffffff. But if I rewrite these words. it can get the right value.

Thank you!

#define FTFA_STAT_ERROR_MASK 0x70

#define FTFA_STAT_CCIF 0x80

static uint32_t writeWordToFlash(uint32_t addr, uint32_t data, uint32_t opt)

{

int i;

uint32_t status;

uint32_t val;

uint8_t *chVar = (uint8_t *)&data;

hw_ftfa_fccob_t fccob;

if(addr&0x03)

{

printf("Invalid address\n");

return DAP_ERROR_ADDRESS;

}

val = readMem(REGS_FTFA_BASE);

/*Clear the old error */

if((val & FTFA_STAT_ACCERR_MASK) || (val & FTFA_STAT_FPVIOL_MASK) || (val & FTFA_STAT_RDCOLERR_MASK))

writeMem(REGS_FTFA_BASE, FTFA_STAT_ERROR_MASK);

if(opt==FTFA_CMD_PROGRAM_LONGWORD)

{

/* Prepare the FTFA FCCOB */

fccob.FCCOB0 = FTFA_CMD_PROGRAM_LONGWORD;

fccob.FCCOB1 = (uint8_t)((addr >> 16) & 0xff);

fccob.FCCOB2 = (uint8_t)((addr >> 8) & 0xff);

fccob.FCCOB3 = (uint8_t)(addr & 0xff);

fccob.FCCOB4 = chVar[3];

fccob.FCCOB5 = chVar[2];

fccob.FCCOB6 = chVar[1];

fccob.FCCOB7 = chVar[0];

/* Write FCFOC */

writeMem(FTFA_FCCOB_BASE, *(uint32_t *)(&fccob.FCCOB3));

writeMem(FTFA_FCCOB_BASE+4, *(uint32_t *)(&fccob.FCCOB7));

}

else if(opt==FTFA_CMD_PROGRAM_CHECK)

{

/*check the flash*/

fccob.FCCOB0 = FTFA_CMD_PROGRAM_CHECK;

fccob.FCCOB1 = (uint8_t)((addr >> 16) & 0xff);

fccob.FCCOB2 = (uint8_t)((addr >> 8) & 0xff);

fccob.FCCOB3 = (uint8_t)(addr & 0xff);

fccob.FCCOB4 = 0x2;

fccob.FCCOB8 = chVar[3];

fccob.FCCOB9 = chVar[2];

fccob.FCCOBA = chVar[1];

fccob.FCCOBB = chVar[0];

/* Write FCFOC */

writeMem(FTFA_FCCOB_BASE, *(uint32_t *)(&fccob.FCCOB3));

writeMem(FTFA_FCCOB_BASE+4, *(uint32_t *)(&fccob.FCCOB7));

writeMem(FTFA_FCCOB_BASE+8, *(uint32_t *)(&fccob.FCCOBB));

}

/* Start command */

writeAP(AP_CSW, AP_CSW_8BIT_TRANSFER);

writeMem(REGS_FTFA_BASE, FTFA_STAT_CCIF);

writeAP(AP_CSW, AP_CSW_DEFAULT);

/* Wait for done */

for(i=0; i<WAIT_FTFA_CCIF_COUNT; i++)

{

val = readMem(REGS_FTFA_BASE);

if(val&FTFA_STAT_ACCERR_MASK)

{

printf("Access Error. val = 0x%08x, i = %d, opt = %d\n", val, i, opt);

return DAP_ERROR_ACCESS;

}

if(val&FTFA_STAT_FPVIOL_MASK)

{

printf("Protection error. val = 0x%08x, i = %d, opt = %d\n", val, i, opt);

return DAP_ERROR_FPVIOL;

}

if(val&FTFA_STAT_RDCOLERR_MASK)

{

printf("Read collision error. val = 0x%08x, i = %d, opt = %d\n", val, i, opt);

return DAP_ERROR_RDCOLERR;

}

if(val&FTFA_STAT_ERROR_MGSTAT0)

{

printf("MGSTAT0 error. val = 0x%08x, i = %d, opt = %d\n", val, i, opt);

return DAP_ERROR_MGSTAT0;

}

if((val&0xF0)==FTFA_STAT_CCIF)

break;

}

return SWD_ERROR_OK;

}

Re: Flash Programming

东升王 — Wed, 17 Jun 2015 13:59:44 GMT

Hi Li Yong

Actually I already did that in my code. Here are the some code.

Sometimes it works well. sometimes in some words it return access error.

these position always are 0xffffffff. But if I rewrite these words. it

can get the right value.

Thank you!

#define FTFA_STAT_ERROR_MASK 0x70

#define FTFA_STAT_CCIF 0x80

static uint32_t writeWordToFlash(uint32_t addr, uint32_t data, uint32_t opt)

{

int i;

uint32_t status;

uint32_t val;

uint8_t *chVar = (uint8_t *)&data;

ftfa_fccob_t fccob;

if(addr&0x03)

{

printf("Invalid address\n");

return DAP_ERROR_ADDRESS;

}

val = readMem(REGS_FTFA_BASE);

/*Clear the old error */

if((val & FTFA_STAT_ACCERR_MASK) || (val & FTFA_STAT_FPVIOL_MASK)

|| (val & FTFA_STAT_RDCOLERR_MASK))

writeMem(REGS_FTFA_BASE, FTFA_STAT_ERROR_MASK);

if(opt==FTFA_CMD_PROGRAM_LONGWORD)

{

/* Prepare the FTFA FCCOB */

fccob.FCCOB0 = FTFA_CMD_PROGRAM_LONGWORD;

fccob.FCCOB1 = (uint8_t)((addr >> 16) & 0xff);

fccob.FCCOB2 = (uint8_t)((addr >> 8) & 0xff);

fccob.FCCOB3 = (uint8_t)(addr & 0xff);

fccob.FCCOB4 = chVar[3];

fccob.FCCOB5 = chVar[2];

fccob.FCCOB6 = chVar[1];

fccob.FCCOB7 = chVar[0];

/* Write FCFOC */

writeMem(FTFA_FCCOB_BASE, *(uint32_t *)(&fccob.FCCOB3));

writeMem(FTFA_FCCOB_BASE+4, *(uint32_t *)(&fccob.FCCOB7));

}

else if(opt==FTFA_CMD_PROGRAM_CHECK)

{

/check the flash/

fccob.FCCOB0 = FTFA_CMD_PROGRAM_CHECK;

fccob.FCCOB1 = (uint8_t)((addr >> 16) & 0xff);

fccob.FCCOB2 = (uint8_t)((addr >> 8) & 0xff);

fccob.FCCOB3 = (uint8_t)(addr & 0xff);

fccob.FCCOB4 = 0x2;

fccob.FCCOB8 = chVar[3];

fccob.FCCOB9 = chVar[2];

fccob.FCCOBA = chVar[1];

fccob.FCCOBB = chVar[0];

/* Write FCFOC */

writeMem(FTFA_FCCOB_BASE, *(uint32_t *)(&fccob.FCCOB3));

writeMem(FTFA_FCCOB_BASE+4, *(uint32_t *)(&fccob.FCCOB7));

writeMem(FTFA_FCCOB_BASE+8, *(uint32_t *)(&fccob.FCCOBB));

}

/* Start command */

writeAP(AP_CSW, AP_CSW_8BIT_TRANSFER);

writeMem(REGS_FTFA_BASE, FTFA_STAT_CCIF);

writeAP(AP_CSW, AP_CSW_DEFAULT);

/* Wait for done */

for(i=0; i<WAIT_FTFA_CCIF_COUNT; i++)

{

val = readMem(REGS_FTFA_BASE);

if(val&FTFA_STAT_ACCERR_MASK)

{

printf("Access Error. val = 0x%08x, i = %d, opt = %d\n",

val, i, opt);

return DAP_ERROR_ACCESS;

}

if(val&FTFA_STAT_FPVIOL_MASK)

{

printf("Protection error. val = 0x%08x, i = %d, opt =

%d\n", val, i, opt);

return DAP_ERROR_FPVIOL;

}

if(val&FTFA_STAT_RDCOLERR_MASK)

{

printf("Read collision error. val = 0x%08x, i = %d, opt =

%d\n", val, i, opt);

return DAP_ERROR_RDCOLERR;

}

if(val&FTFA_STAT_ERROR_MGSTAT0)

{

printf("MGSTAT0 error. val = 0x%08x, i = %d, opt = %d\n",

val, i, opt);

return DAP_ERROR_MGSTAT0;

}

if((val&0xF0)==FTFA_STAT_CCIF)

break;

}

return SWD_ERROR_OK;

}