projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| 8e055025 MJ |
1 | ------------------------------------------------------------------------------- |
| 2 | SWIM | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| 5 | This is a capture of an ST-Link V2 programming an STM8 using the SWIM protocol. | |
| 6 | ||
| 7 | Details: | |
| 8 | https://www.st.com/content/ccc/resource/technical/document/user_manual/ca/89/41/4e/72/31/49/f4/CD00173911.pdf/files/CD00173911.pdf/jcr:content/translations/en.CD00173911.pdf | |
| 9 | ||
| 10 | ||
| 11 | Logic analyzer setup | |
| 12 | -------------------- | |
| 13 | ||
| 14 | The logic analyser used was a DreamSourceLab DSLogic (at 10MHz). | |
| 15 | ||
| 16 | Probe Target | |
| 17 | ------------------ | |
| 18 | 0 RST | |
| 19 | 1 SWIM | |
| 20 | ||
| 21 | ||
| 22 | sample1.sr | |
| 23 | ---------- | |
| 24 | ||
| 25 | Using stm8flash with an ST-Link V2 adapter to program an STM8S003F3. | |
| 26 | ||
| 27 | Command line: | |
| 28 | ||
| 29 | $ stm8flash -c stlinkv2 -p stm8s003f3 -s flash -w prog.ihx | |
| 30 | ||
| 31 | stm8flash is modified both for correctness and to generate the test sequences. | |
| 32 | The updated version can be found at https://github.com/mjagdis/stm8flash. | |
| 33 | ||
| 34 | A complete flash programming operation. SWIM is enabled and set to high | |
| 35 | speed mode (notice how the pulse width and period decreases after the | |
| 36 | initial chatter). A read of the affected memory region is made, compared to | |
| 37 | the data to be written and those blocks that contain differences are written | |
| 38 | back. Finally an SRST SWIM command is sent to terminate the conversation | |
| 39 | and reset the target. |