OLIMEX STM32-P107 User Manual page 15

RS232
The board can be programmed via the RS232 connector (serial interface). This is done without the need
of an additional programming tool. However, you would need a proper serial cable or adapter to access it.
You would also need to change the positions of three PTH jumpers (the rest of the jumpers should be as
per default):
1. B0_0/B0_1 should be set to position B0_1 – which means boot from system memory
2. RST_E should be closed
3. BOOT_E should be closed
Do not confuse B0_0/B0_1 with B1_0/B1_1.
After you set the jumpers and establish the hardware connection you need to download the software
provided by STMicroelectronics. It is called "Flash Loader Demonstrator". It might be found here:
http://www.st.com/web/en/catalog/tools/PF257525 – after you install the software and establish
connection you can upload hex files to the board without the need of an expensive debugger. A properly
recognized board in "Flash Loader Demonstrater" is shown below:
Note that this method of programming is much slower than working with a debugger. Not only the upload
speed is low – you would need to perform hardware debugging routines to be able to track what is going
on.
The layout of the port is shown on the next page:
Page 15 of 23