November 10, 2020
I just went to the mailbox and the package was there! I won the bid on an Olimex STM32-P405 for $6.50. Add $6 shipping and here it is for $12,50. Mouser still has them for sale at $38 each, so that is a decent deal.
Olimex makes some top quality stuff, so I am looking forward to working with this board.
Onboard is an STM32F405RGT6 chip.
The board sports an ancient USB type B connector (the square connectors you used to see on printers and external disk drives). This is quaint, but just fine by me. Let's find a cable and plug it in.
A red power LED next to the USB connector comes on. A red STAT LED blinks rapidly for a second or two. My linux machine sees absolutely nothing on the USB bus.
Another "quaint" touch is a 9 pin D connector for a serial port. It has a MAX3232 chip next to it, so it apparently supports the old serial standard of +-12 volt levels. And lucky for me, I have some USB to serial dongles with an appropriate 9 pin D on the end.
It has a 20 pin JTAG connector. I have a Segger J-link with a 20 pin JTAG cable. Will this work? Looking at the pinouts, it looks like trouble without a special cable.
Tom's Computer Info / email@example.com