MPC5566 writing to Flash

[Bloodhound]

Hi All,

I having some trouble writing to the internal Flash memory, I can erase the flash blocks fine.

I think my problem is I am not really understanding the steps in the MPC manual for programming.

Ignoring the process of unlocking the blocks (which I'm sure I have right), the MPC manual states:

"Write the first address to be programmed in the flash module with the program data."

A sampe of my code I am using for testing is to write the data $12345678 to address 0x0006_0000

 lis          r12,6           ; Hardcode to address $60000 for testing
 lis          r11,1234
 ori          r11,r11,5678    ; Try to write 12345678 to $60000
 stw          r11,0(r12)

Then turn on the EHV bit.

But this doesn't work, in fact it makes the CPU reset.

Am I missing something?

Thanks.

[dayve]

Hey Bloodhound,

We provide flash drivers with an API for writing to the flash on the MPC55xx MCU's. I would recommed that you uses these drivers as the handle the set up of the flash for sucessful programming.

Here if the link to the drivers:

MPC55XX_FLASH_DRIVER

Regards,

Dayve

[SABK]

the driver is good but it does not run on all the versions of mpc5554!!!

how do i find out which version is my mpc???