The ADC configuration was too complex. It was hard to follow when certain ADC lines are available. Furthermore, the order of ADC lines did depend on the use of other peripherals. Now, either the TFT display is not connected and all ADC lines are available or the TFT display is connected and the second SPI device is used so that only the first 4 ADC lines are available.
19199: sys/suit: Ensure previous thread is stopped before reusing its stack r=benpicco a=chrysn
### Contribution description
Closes: https://github.com/RIOT-OS/RIOT/issues/19195
If the thread has released the mutex but the thread has not terminated (which happens in the situation that would previously have overwritten a still active thread's state), then a warning is shown and the trigger is ignored.
### Testing procedure
This should work before and after:
* `make -C examples/suit_update BOARD=native all term`
* `aiocoap-client coap://'[fe80::3c63:beff:fe85:ca96%tapbr0]'/suit/trigger -m POST --payload 'coap://[2001:db8::]/foo'`
* In parallel, on the RIOT shell, run `suit fetch coap://[2001:db8::]/foo`
* After the first download fails, the second one starts right away ("suit_worker: update failed, hdr invalid" / "suit_worker: started").
Run again with the worker thread on low priority:
```patch
diff --git a/sys/suit/transport/worker.c b/sys/suit/transport/worker.c
index a54022fb28..e26701a64c 100644
--- a/sys/suit/transport/worker.c
+++ b/sys/suit/transport/worker.c
`@@` -70 +70 `@@`
-#define SUIT_COAP_WORKER_PRIO THREAD_PRIORITY_MAIN - 1
+#define SUIT_COAP_WORKER_PRIO THREAD_PRIORITY_MAIN + 1
```
Before, this runs the download once silently (no clue why it doesn't run it twice, but then again, I claim there's concurrent memory access from two thread, so who knows what happens). After, it runs a single download and shows an error message for the second one once the first is complete ("Ignoring SUIT trigger: worker is still busy.").
### Issues/PRs references
This may be made incrementally easier by https://github.com/RIOT-OS/RIOT/pull/19197 -- that PR as it is now would spare us the zombification (because returning would do that), and having a `wait` function would allow us to turn the new error case into a success.
19205: boards/common: add common timer config for GD32VF103 boards r=benpicco a=benpicco
19207: examples/gnrc_border_router: static: use router from advertisements by default r=benpicco a=benpicco
Co-authored-by: chrysn <chrysn@fsfe.org>
Co-authored-by: Benjamin Valentin <benjamin.valentin@bht-berlin.de>
Co-authored-by: Benjamin Valentin <benpicco@beuth-hochschule.de>
19202: cpu/gd32v: add periph_rtt support r=benpicco a=gschorcht
### Contribution description
This PR provides the `periph_rtt` support and is one of a bunch of PRs that complete the peripheral drivers for GD32VF103.
### Testing procedure
`tests/periph_rtt` should work and give the following results:
```
Help: Press s to start test, r to print it is ready
START
main(): This is RIOT! (Version: 2023.04-devel-199-g2d429-cpu/gd32v/periph_rtt)
RIOT RTT low-level driver test
RTT configuration:
RTT_MAX_VALUE: 0xffffffff
RTT_FREQUENCY: 32768
Testing the tick conversion
Trying to convert 1 to seconds and back
Trying to convert 256 to seconds and back
Trying to convert 65536 to seconds and back
Trying to convert 16777216 to seconds and back
Trying to convert 2147483648 to seconds and back
All ok
Initializing the RTT driver
This test will now display 'Hello' every 5 seconds
RTT now: 148
Setting initial alarm to now + 5 s (163988)
rtt_get_alarm() PASSED
Done setting up the RTT, wait for many Hellos
{ "threads": [{ "name": "idle", "stack_size": 256, "stack_used": 216 }]}
{ "threads": [{ "name": "main", "stack_size": 1280, "stack_used": 480 }]}
Hello
Hello
Hello
Hello
```
### Issues/PRs references
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
