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flashing with dfu-util

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Joe Britton 2020-12-08 11:07:48 -05:00
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@ -37,7 +37,30 @@ gdb target/thumbv7em-none-eabihf/release/thermostat
```
## Flashing
There are several options for performing device firmware upgrade (DFU) on Thermostat. The firmware is an .ELF file.
### dfu-util
This can be done from Linux machine using only micro-USB connector.
([Issue #10](https://git.m-labs.hk/M-Labs/thermostat/issues/10))
* Install the DFU USB tool (dfu-util).
* Convert firmware from ELF to BIN: ```arm-none-eabi-objcopy -O binary thermostat.elf thermostat.bin```
* Connect to the Micro USB connector to Thermostat below the RJ45.
* Add jumper to Thermostat v2.0 across 2-pin jumper adjacent to JTAG connector.
* Cycle board power to put it in DFU update mode
* Push firmware to flash: ```dfu-util -a 0 -s 0x08000000:leave -D thermostat.bin```
* Remove jumper
* Cycle power to leave DFU update mode
### st.com DfuSe tool
On a Windows machine install [st.com](https://st.com) DfuSe USB device firmware upgrade (DFU) software. [link](https://www.st.com/en/development-tools/stsw-stm32080.html).
- add jumper to Thermostat v2.0 across 2-pin jumper adjacent to JTAG connector
- cycle board power to put it in DFU update mode
- connect micro-USB to PC
- use st.com software to upload firmware
- remove jumper
- cycle power to leave DFU update mode
### openocd
```shell
openocd -f interface/stlink-v2-1.cfg -f target/stm32f4x.cfg -c "program target/thumbv7em-none-eabihf/release/thermostat verify reset;exit"
```