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Fix spelling and clarify programming board FW update procedure

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Joachim Strömbergson 2022-10-19 15:59:42 +02:00
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doc/toolchain_setup.md
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@ -84,24 +84,26 @@ The circuit board designs were all created in [KiCad
These tools are needed to build the programmer firmware for the
mta1-usb-v1-programmer
#### FW update of the programmer
The programmer runs a FW needed to program the devices, the source code
is available on Github:
#### FW update of programmer board
The programmer board is running a custom firmware developed by Blinkinlabs. The source code
for this firnware is available on Github:
https://github.com/Blinkinlabs/ice40_flasher
There is also a pre built FW binary for the programmer:
There is also a pre built firmware binary available for the programmer board:
https://github.com/Blinkinlabs/ice40_flasher/tree/main/bin
Download the file programmer FW file "main.uf2" to your host computer.
To update the firmware on the programmer board, either build the file "main.uf2", or download
the pre built file to your host computer. Then do the following:
To program do the following.
1. Disconnect the programming board from the host computer
2. Press and hold the "BOOTSEL" button on the RPi2040 sub board on the programming board
3. Reconnect the programming board to the host computer
4. Release the "BOOTSEL" button after connecting the programming board to the host. The board should now appear to the host as a USB connected storage device
5. Open the storage device and drop the firmware file ("main.uf2") into the storage device
1. Press the "BOOTSEL" button on the RPi2040 board while connecting the board to the host
2. Release the button after cvonnecting the board to the host. The board will now appear to the host as a USB connected storage device
3. Open the storage device and drop the FW file ("main.uf2") into the storage device
The programmer will update its FW with the file and restart itself.
The programmer will update its firmware with the file and restart itself. After reboot the storage device will automatically be disconnected.
### mta1-usb-v1: ch552 USB to Serial firmware