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Update README.md 

More details on DFU process.
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Mobilinkd LLC 2019-01-21 15:06:27 -06:00 zatwierdzone przez GitHub
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@ -24,26 +24,26 @@ Firmware can be installed via the on-board ST/LINK port or via USB DFU.
## USB DFU ## USB DFU
Download the STM32CubeProgrammer from STMicroelectronics. 1. Download the STM32CubeProgrammer.
https://s3.amazonaws.com/mobilinkd/en.stm32cubeprog-1.4.0.zip
This programmer will work on Linux, OS X, and Windows.
https://www.st.com/en/development-tools/stm32cubeprog.html 2. Download the ELF file from the release (or that you have built from source).
This programmer will work on Linux, OS X, and Windows. 3. Plug the TNC into a USB port and turn the TNC on. You should see a USB serial port enumerated.
Download the ELF file from the release (or that you have built from source). 4. Put the TNC into DFU mode by pressing the DFU button on the side. The TNC
Plug the TNC into a USB port. You should see a USB serial port enumerated.
Put the TNC into DFU mode by pressing the DFU button on the side. The TNC
will only enter DFU mode when plugged into a USB port. will only enter DFU mode when plugged into a USB port.
![TNC3 Diagram](https://s3.amazonaws.com/mobilinkd/TNC3/TNC3_Diagram.svg)
***There is no visible indication on the TNC that it is in DFU mode*** ***There is no visible indication on the TNC that it is in DFU mode***
You should see the serial port device go away and a new DFU device appear. 5. You should see the serial port device go away and a new DFU device appear.
Run the STM32CubeProgrammer from the command-line. 6. Run the STM32CubeProgrammer from the command-line. (Replace "firmware.elf" with the appropriate firmware filename.)
./STM32_Programmer_CLI -c port=USB1 -d firmware-1_0_1.elf -v -g 0x8000000 ./STM32_Programmer_CLI -c port=USB1 -d firmware.elf -v -g 0x8000000
When that is complete, the DFU device will disappear and the serial port 7. When that is complete, the DFU device will disappear and the serial port
device will re-appear. device will re-appear.