[Memo] Burn firmware to uC / ラズパイで、マイコンのファームを焼く

ラズパイで、マイコンのファームを焼く.. ための準備
下書きがいっぱいになってしまった(ぉぃ!)ので、とりあえず、一般公開.. 続きはそのうち...

Overview // 概要

• Burn uC's firmware via RPi-GPIO

Environment

• Raspberry Pi 4B

• OS: 2020-08-20-raspios-buster-armhf-lite.zip

• Microcontroller

  • ATmega8 x2
  • Nordic nRF52832
  • SAMD21G18 (Arduino MKRZero series)

Connection

• 接続は、GPIOになってるとこなら、設定ファイル変更でいけるハズ。

Setup Raspberry Pi

1. Burn RPi OS image to microSD by using Raspberry Pi Imager

2. Update and install tools

   Copy_And_Paste

   # When you are using apt-cacher-ng
   # export http_proxy="http://apt-cache-server.local:3142"
   sudo apt-get update && \
   sudo apt upgrade -y && \
   sudo apt install -y git avrdude telnet srecord
   

3. Install openocd from source code

   Copy_And_Paste

   ### OpenOCD
   # export http_proxy="http://apt-cache-server.local:3142"
   sudo apt update && \
   sudo apt-get install -y git autoconf libtool make pkg-config libusb-1.0-0 libusb-1.0-0-dev && \
   git clone git://repo.or.cz/openocd.git && \
   cd openocd/ && \
   time ./bootstrap && \
   time ./configure --enable-sysfsgpio --enable-bcm2835gpio && \
   time make -j4 && \
   sudo make install
   

4. Configuration files for OpenOCD and avrdude

   • Atmel SAMD21

     openocd-at91samd.cfg

     # ATMEL-SAMD21
     #interface sysfsgpio
     adapter driver sysfsgpio
     
     # SWD GPIO set: swclk swdio
     sysfsgpio_swd_nums 6 5
     
     transport select swd
     set CHIPNAME at91samd
     source [find target/at91samdXX.cfg]
     
     ### Command(s)
     init
     targets
     reset halt
     

   • Nordic nRF52832

     openocd-nrf52.cfg

     # Nordic nRf52832
     #interface sysfsgpio
     adapter driver sysfsgpio
     
     # SWD GPIO set: swclk swdio
     sysfsgpio_swd_nums 26 19
     
     transport select swd
     source [find target/nrf52.cfg]
     
     ### Command(s)
     init
     targets
     reset halt
     

   • ATmega8

     /etc/avrdude.confに追記する.id=は適当に。

     programmer
       id    = "j15";
       desc  = "Use the Linux sysfs interface to bitbang GPIO lines";
       type  = "linuxgpio";
       mosi  = 18;
       miso  = 25;
       sck   = 24;
       reset = 23;
     ;
     programmer
       id    = "j17";
       desc  = "Use the Linux sysfs interface to bitbang GPIO lines";
       type  = "linuxgpio";
       mosi  = 12;
       miso  = 21;
       sck   = 20;
       reset = 16;
     ;
     

How to use // 使い方

OpenOCD - Atmel SAMD21

OpenOCD - Nordic nRF52832

実行例-端末その１_サーバ起動

pi@raspberrypi:~ $ openocd -f openocd-nrf52.cfg 
Open On-Chip Debugger 0.10.0+dev-01411-g051e80812-dirty (2020-09-29-01:39)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
Info : SysfsGPIO JTAG/SWD bitbang driver
Info : This adapter doesn't support configurable speed
Info : SWD DPIDR 0x2ba01477
Info : nrf52.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : starting gdb server for nrf52.cpu on 3333
Info : Listening on port 3333 for gdb connections
target halted due to debug-request, current mode: Thread 
xPSR: 0x01000000 pc: 0x00000a80 msp: 0x20000400
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections

実行例-端末その２_サーバに接続

pi@raspberrypi:~ $ telnet localhost 4444
Trying ::1...
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Open On-Chip Debugger
> reset halt
target halted due to debug-request, current mode: Thread 
xPSR: 0x01000000 pc: 0x00000a80 msp: 0x20000400
> flash erase_address 0x0 0x80000
erased address 0x00000000 (length 524288) in 0.762454s (671.516 KiB/s)

> flash write_image s132_nrf52_7.0.1_softdevice.hex
Padding image section 0 at 0x00000b00 with 1280 bytes
wrote 153792 bytes from file s132_nrf52_7.0.1_softdevice.hex in 8.331557s (18.026 KiB/s)

> verify_image s132_nrf52_7.0.1_softdevice.hex
verified 152512 bytes in 0.572362s (260.216 KiB/s)

> flash write_image secure_bootloader_ble_s132_pca10040.hex
Padding image section 0 at 0x0007d7f6 with 2 bytes
wrote 23920 bytes from file secure_bootloader_ble_s132_pca10040.hex in 1.519181s (15.376 KiB/s)

> verify_image secure_bootloader_ble_s132_pca10040.hex
verified 23918 bytes in 0.286536s (81.517 KiB/s)

> reset run
> exit
Connection closed by foreign host.
pi@raspberrypi:~ $ 

avrdude - ATMega8