Jtaging Bootloader into Balloon FPGA variant boards
Dongle adaptor boards
- Using this boards with Olimex or Amontec2 dongles works but it needs a little fiddling:
You need to manually reset (pressing Reset button on board) at the time you call reset halt on the openocd prompt. The process is as follows:
# Open a terminal # For Olimex: $ openocd -s utils/openocd -f balloon-cpu-olimex.cfg # For Amontec2: $ openocd -s utils/openocd -f balloon-cpu-amontec2.cfg # On another terminal $ telnet localhost 4444 > reset halt (Press Reset on board until you get into Supervisor mode -- not User) > flash probe 0 > flash erase_sector 0 0 12 > flash write_sector 0 bootldrpxa.fast 0 > reset run
Balloon Devkit board
- We have unsuccessfully try this boards (on dual chain mode) with Olimex and Amontec2 dongles and both fail. It might work in single chain mode, if you configure it for it.