Hello,

I am having a hard time programming the option bytes of a STM205RG with the Segger Flasher ARM in standalone mode.
I am trying to set the BOR level and this works fine, when I am using Keil uVision and the hex file it creates, containing the 16 byte of data, starting at address 0x1FFFC000.

But I am unable to create a J-Flash project that can program that bytes. I first tried to plain and simple use the hex from uVision and add a second memory bank, but this did not work. I then read about the exit steps and how to activate the read out protection. And now I am using the examples from the Segger Wiki and trying to adapt them, but I cannot get it to work.

Is there any example for activating the BOR level in standalone mode?

Thanks for your response!

This is bad, because we need it for 3rd party firmware, which cannot be changed to set the bytes by software.

When using J-Flash directly, using the hex-file with the application and option bytes, I get the following errors when I try to erase/program the device.





This is the part of the log dealing with this.

- Start of determining flash info (Bank 1 @ 0x1FFFC000)
- ERROR: Could not find CFI compliant flash device
- Error while determining flash info (Bank 1 @ 0x1FFFC000)
- End of determining flash info
- Flash bank info:
- 1 * 3670032 KB @ 0x1FFFC000
- ERROR: Failed to program and verify target