DIY STM32 flash programmer with FT232R

[Boscoe]

So i'm doing a programmer to make a batch of MCUs a bit easier to program with an automated process (program). However I'm having trouble with the UART comms. I have set all the baud rates etc. to the correct values and i'm sending the commands described in the boot loader documentation from ST but I get strange or no no response. First off the baud rate the boot loader is sending seems to be faster than the max of 115200 and some times I get one, two or three bytes sent back from the boot loader when I should be getting fifteen for the command I'm sending.

This is the document I've been using http://www.st.com/web/en/resource/technical/document/application_note/CD00264342.pdf

If anyone who has experience doing this could give me some pointers?

Thanks

[Psi]

I use this linux stm32 flashing tool to program some STM32F1 chips and it works fine.
http://sourceforge.net/projects/stm32flash/

You could look at the code or datalog what it sends and compare that to your app. It might give you some clues.

[Boscoe]

Thanks. I found what it was. I didn't initialise the boot loader, i just started writing commands to it.