Merge pull request 'flashing with dfu-util' (#20) from jbqubit/thermostat:flashdoc into master

Update based on two issues.
M-Labs/thermostat#10
https://github.com/sinara-hw/Thermostat/issues/87/

Reviewed-on: M-Labs/thermostat#20
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Astro 2020-12-09 08:16:45 +08:00
commit 1090d0f5b5
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@ -3,6 +3,7 @@
- [x] [Continuous Integration](https://nixbld.m-labs.hk/job/stm32/stm32/thermostat) - [x] [Continuous Integration](https://nixbld.m-labs.hk/job/stm32/stm32/thermostat)
- [x] [Download latest firmware build](https://nixbld.m-labs.hk/job/stm32/stm32/thermostat/latest/download-by-type/file/binary-dist) - [x] [Download latest firmware build](https://nixbld.m-labs.hk/job/stm32/stm32/thermostat/latest/download-by-type/file/binary-dist)
NOTE: Firmware is not yet ready for production use.
## Building ## Building
@ -37,7 +38,30 @@ gdb target/thumbv7em-none-eabihf/release/thermostat
``` ```
## Flashing ## 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 ```shell
openocd -f interface/stlink-v2-1.cfg -f target/stm32f4x.cfg -c "program target/thumbv7em-none-eabihf/release/thermostat verify reset;exit" openocd -f interface/stlink-v2-1.cfg -f target/stm32f4x.cfg -c "program target/thumbv7em-none-eabihf/release/thermostat verify reset;exit"
``` ```