TMS320F2800157: Writing CCStudio compiled binary to flash via bootloader

Cody Xu

Prodigy 30 points

Part Number: TMS320F2800157
Other Parts Discussed in Thread: UNIFLASH, CCSTUDIO, C2000WARE

Tool/software:

I've been trying to write a bootloader for the TMS320F2800157 and have managed to accomplish the following:

1. Receive binary data over UART

2. Program the binary data into specified flash sectors/banks

I've verified that the data sent over UART matches what is written using UNIFLASH.

However, from here I am having difficulty figuring out how to properly write/program an application to the flash and then jump to it from bootloader.

So far, I've been able to jump between bootloader and a modified LED blinking program if both are flashed on using the CCStudio to flash, but when attempting to write that same LED binary over UART to flash it simply crashes and goes back to bootloader.

I've tried using hex2000 to output the .out file in different ways with no success either.

What I would like to know is what the proper way would be to:

a) Convert the .out file into a binary that can be written to flash and

b) What sectors/addresses do we need to write the binary data to

over 1 year ago

0 Aishwarya Rajesh over 1 year ago

TI__Genius 17305 points

Hi Cody,

The expert is currently out of office, so please expect a 1–2-day delay in response. Thank you.

Best Regards,

Aishwarya

0 Cody Xu over 1 year ago in reply to Aishwarya Rajesh

Prodigy 30 points

Hi Aishwarya,

To also try and make it easier, I am trying to do something similar to https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/228101/hex2000-create-raw-binary-image-for-flash-api-usage

but on the TMS320F2800157 using the latest ccstudio/hex2000. Replicating some of the steps from that topic has not been successful on my end so far as the linker files are too different.

Thanks,

Cody

0 Allison Nguyen over 1 year ago in reply to Cody Xu

TI__Mastermind 24380 points

Hi Cody,

Have you already reviewed the below linked app note on serial flash programming? It walks through how to do so using SCI boot for several C2000 devices using our C2000Ware serial flash programmer as well. It also has instructions on using the hex2000 utility to generate the correct format files for this. Please take a look and let me know if you find it helpful.

https://www.ti.com/lit/an/sprabv4h/sprabv4h.pdf

Best Regards,

Allison

0 Cody Xu over 1 year ago in reply to Allison Nguyen

Prodigy 30 points

Hi Allison

I have taken a look at that yes, I had passing those flags into the hex2000 tool and still ended up with no luck after the jump to application.

I did however, eventually figure out how to tweak the answer from https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/228101/hex2000-create-raw-binary-image-for-flash-api-usage

to work for my use case. I created a simple commands.hex file that looks like this:

ROMS
{
APP_BINARY : origin = <start addr>, length = <size of flash app lives in>, romwidth = 16
}

SECTIONS
{
codestart :
.text :
.cinit :
.stack :
.TI.ramfunc :
}

and added the following to my CLI command in CCStudio:

${command} ${flags} ${output_flag} ${output} ${inputs} ../commands.hex

and with running hex2000 with these options:

--fill=0xFFFF --image --linkerfill --romwidth=8 --diag_wrap=off --binary

I was able to get the jump to application to finally work.

Thanks,

Cody

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F2800157: Writing CCStudio compiled binary to flash via bootloader