topic MCF5223x Uart Serial Boot Loader in ColdFire/68K Microcontrollers and Processors

MCF5223x Uart Serial Boot Loader

lupogrigio — Sun, 02 Sep 2012 20:55:24 GMT

Hi all,

I'm planning to develop a Uart Serial Boot Loader to be able to perform firmware update on MCF 52234 with a simple RS232 cable. In the past I have deveolped a similar program for an HCS08 uC. Before start to code I' wondering if some one have done a similar work for this or a "relative" uC.

What I'm looking for is a serial bootloader with the pc host software counterpart thar permit to upload the S19 program file in the program memory space...

If some of you know this, please contact me on the forum.

Best Regards

Re: MCF5223x Uart Serial Boot Loader

mjbcswitzerland — Sun, 02 Sep 2012 22:36:49 GMT

There is an SREC loader for M522xx devices in the uTasker project:

Normal S-REC http://www.utasker.com/docs/uTasker/uTaskerSerialLoader.PDF

Encrypted S-REC: http://www.utasker.com/docs/uTasker/uTaskerSecureSREC.pdf

It also supports USB CDC, USB-MSD, SD card or Ethernet (FTP, TFT, Web server) loading.

The USB-MSD loader can be seen in operation (on a Kinetis since the project also work with those devices too) here: http://www.youtube.com/watch?v=H4TYM9jY2-g

Pre-built binaries can be tried here: http://www.utasker.com/SW_Demos.html

Regards

Mark