MCF51AG128 reprogramming via SPI

christian_jarno — Tue, 09 Jul 2019 14:30:55 GMT

Hi,

I would like to reprogramming the MCU MCF51AG128 via SPI. Actually i use the BDM Port but in my application the SPI bus is only available for reprogramming the MCU.

Is there a sofware for programming via serial port SPI.

If i need to make a software, do you known the sequence for programming via SPI?

For exemple :

- Enable/configure SPI port in the first programme via BDM port then you can communicate via SPI

- Reset MCU (through software or hardware ?)

- Change some registers in Flash memory (clock between 150 kHz and 200kHz, protection...)

- erase Memory

- Program ( transfert .elf file...)

- another reset ?

...

thanks in advance,

Christian

Re: MCF51AG128 reprogramming via SPI

vicentegomez — Tue, 09 Jul 2019 22:00:45 GMT

Unfortunately, there is not a sample code for a bootloader using the SPI port, but you can use the same concept of a bootloader described on the application note AN2295 Serial bootloader, also please check the AN3748 and AN4379

I hope this will help you.

topic MCF51AG128 reprogramming via SPI in ColdFire/68K Microcontrollers and Processors

MCF51AG128 reprogramming via SPI

Re: MCF51AG128 reprogramming via SPI