HYSTM32_28 examples

I nearly forgot to mention. This might be relevant

  python ../stm32loader.py -p /dev/ttyUSB0 -e -v espruino_hystm32_28_rb.bin
  Reading data from espruino_hystm32_28_rb.bin
  Bootloader version 0x22
  Chip id 0x410, STM32F1, performance, medium-density
  Read 256 bytes at 0x8000000
  Read 256 bytes at 0x8000100
[...]
  Read 256 bytes at 0x8003000
  Read 256 bytes at 0x8003100
  Traceback (most recent call last):
    File "../stm32loader.py", line 516, in <module>
      verify = cmd.readMemory(conf['address'], len(data))
    File "../stm32loader.py", line 321, in readMemory
      data = data + self.cmdReadMemory(addr, 256)
    File "../stm32loader.py", line 184, in cmdReadMemory
      if self.cmdGeneric(0x11):
    File "../stm32loader.py", line 136, in cmdGeneric
      return self._wait_for_ack(hex(cmd))
    File "../stm32loader.py", line 87, in _wait_for_ack
      raise CmdException("No response to %s" % info)
  __main__.CmdException: No response to 0x11

I never thought much of it because writing went without error and Espruino seems to boot fine afterwards.