How to read code from chip?

arthurhsu — Thu, 16 Aug 2012 08:37:47 GMT

Hi there

As title,I would like to read the code in the kinetis chip and backup using codewarrior 10.2.

Anyone know how to do it ?

Best regards

Arthur

Re: How to read code from chip?

evgenik — Thu, 20 Sep 2012 18:04:23 GMT

Hi Arthur.

I have the next for get information about the MCU:

/*******************************************************************************

* FUNCTION NAME: KBDH_Cpu_Identify

* DESCRIPTION: This is primary a reporting function that displays information

* about the specific CPU to the default terminal including:

* - Kinetis family

* - package

* - die revision

* - P-flash size

* - Ram size

* INPUTS: none

* RETURN: none

* NOTES: none

*******************************************************************************/

void KBDH_Cpu_Identify (void)

{

// Determine the Kinetis family

switch((SIM_SDID & SIM_SDID_FAMID(0x7))>>SIM_SDID_FAMID_SHIFT)

{

case 0x0:

printf("\nK10-");

break;

case 0x1:

printf("\nK20-");

break;

case 0x2:

printf("\nK30-");

break;

case 0x3:

printf("\nK40-");

break;

case 0x4:

printf("\nK60-");

break;

case 0x5:

printf("\nK70-");

break;

case 0x6:

printf("\nK50-");

break;

case 0x7:

printf("\nK53-");

break;

default:

printf("\nUnrecognized Kinetis family device.\n");

break;

}

// Determine the package size

switch((SIM_SDID & SIM_SDID_PINID(0xF))>>SIM_SDID_PINID_SHIFT)

{

case 0x2:

printf("32pin ");

break;

case 0x4:

printf("48pin ");

break;

case 0x5:

printf("64pin ");

break;

case 0x6:

printf("80pin ");

break;

case 0x7:

printf("81pin ");

break;

case 0x8:

printf("100pin ");

break;

case 0x9:

printf("104pin ");

break;

case 0xA:

printf("144pin ");

break;

case 0xC:

printf("196pin ");

break;

case 0xE:

printf("256pin ");

break;

default:

printf("\nUnrecognized Kinetis package code. ");

break;

}

/* Determine the revision ID */

switch((SIM_SDID & SIM_SDID_REVID(0xF))>>SIM_SDID_REVID_SHIFT)

{

case 0x0:

printf("Silicon rev 1.0 \n ");

break;

case 0x1:

printf("Silicon rev 1.1 \n ");

break;

case 0x2:

printf("Silicon rev 1.2 \n ");

break;

default:

printf("\nThis version of software doesn't recognize the revision code.");

break;

}

// Determine the flash revision

KBDH_Flash_Identify();

// Determine the P-flash size

switch((SIM_FCFG1 & SIM_FCFG1_PFSIZE(0xF))>>SIM_FCFG1_PFSIZE_SHIFT)

{

case 0x7:

printf("128 kBytes of P-flash ");

break;

case 0x9:

printf("256 kBytes of P-flash ");

break;

case 0xB:

printf("512 kBytes of P-flash ");

break;

case 0xF:

printf("512 kBytes of P-flash ");

break;

default:

printf("ERR!! Undefined P-flash size\n");

break;

}

// Determine if the part has P-flash only or P-flash and FlexNVM

if (SIM_FCFG2 & SIM_FCFG2_PFLSH_MASK)

printf("P-flash only\n");

else

// if part has FlexNVM determine the FlexNVM size

switch((SIM_FCFG1 & SIM_FCFG1_NVMSIZE(0xF))>>SIM_FCFG1_NVMSIZE_SHIFT)

{

case 0x0:

printf("0 kBytes of FlexNVM\n");

break;

case 0x7:

printf("128 kBytes of FlexNVM\n");

break;

case 0x9:

printf("256 kBytes of FlexNVM\n");

break;

case 0xF:

printf("256 kBytes of FlexNVM\n");

break;

default:

printf("ERR!! Undefined FlexNVM size\n");

break;

}

// Determine the RAM size

switch((SIM_SOPT1 & SIM_SOPT1_RAMSIZE(0xF))>>SIM_SOPT1_RAMSIZE_SHIFT)

{

case 0x5:

printf("32 kBytes of RAM\n\n");

break;

case 0x7:

printf("64 kBytes of RAM\n\n");

break;

case 0x8:

printf("96 kBytes of RAM\n\n");

break;

case 0x9:

printf("128 kBytes of RAM\n\n");

break;

default:

printf("ERR!! Undefined RAM size\n\n");

break;

}

/*******************************************************************************

* FUNCTION NAME: KBDH_Flash_Identify

* DESCRIPTION: This is primary a reporting function that displays information

* about the specific flash parameters and flash version ID for

* the current device. These parameters are obtained using a special

* flash command call "read resource." The first four bytes returned

* are the flash parameter revision, and the second four bytes are

* the flash version ID.

* INPUTS: none

* RETURN: none

* NOTES: none

*******************************************************************************/

void KBDH_Flash_Identify(void)

{

// Get the flash parameter version

// Write the flash FCCOB registers with the values for a read resource command

FCCOB0 = 0x03;

FCCOB1 = 0x00;

FCCOB2 = 0x00;

FCCOB3 = 0x00;

FCCOB8 = 0x01;

// All required FCCOBx registers are written, so launch the command

FSTAT = FSTAT_CCIF_MASK;

// Wait for the command to complete

while(!(FSTAT & FSTAT_CCIF_MASK));

#ifdef DEBUG_PRINT

printf("Flash parameter version %d.%d.%d.%d\n",FTFL_FCCOB4,FTFL_FCCOB5,FTFL_FCCOB6,FTFL_FCCOB7);

#endif

// Get the flash version ID

// Write the flash FCCOB registers with the values for a read resource command

FCCOB0 = 0x03;

FCCOB1 = 0x00;

FCCOB2 = 0x00;

FCCOB3 = 0x04;

FCCOB8 = 0x01;

// All required FCCOBx registers are written, so launch the command

FSTAT = FSTAT_CCIF_MASK;

// Wait for the command to complete

while(!(FSTAT & FSTAT_CCIF_MASK));

#ifdef DEBUG_PRINT

printf("Flash version ID %d.%d.%d.%d\n",FTFL_FCCOB4,FTFL_FCCOB5,FTFL_FCCOB6,FTFL_FCCOB7);

#endif

// Clear all of the flags in the flash status register

FSTAT = 0xFF;

}

If you need any other information, describe it.

Have a good day.

Evgeni.

Re: How to read code from chip?

arthurhsu — Fri, 21 Sep 2012 01:16:00 GMT

Dear Evgeni

Much thanks your reply

The answear is not what I want;but I have to thank you

It's a a useful program

Let me describe the question

There is already a code in my kinetis chip,if I lost the original code

I would like to read back the binary code from chip

The answear is

I have to build a emtry project and get in debug mode by RAM

then I can export binary code from memory panel

This is method I know

Best regards

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