19573: cpu/stm32/periph_dac: small improvements r=maribu a=gschorcht
### Contribution description
This PR provides the following improvements for `periph_dac` on STM32
- Support for `RCC_APB1ENR1_DAC1EN` symbol added.
- For boards that have not connected the V_REF+ pin to an external reference voltage, the VREFBUF peripheral can be used as V_REF+ (if supported) by setting `VREFBUF_ENABLE=1`.
- If the DAC peripheral has a mode register (`DAC_MCR`), it is set to normal mode with buffer enabled and connected to external pin and on-chip peripherals. This allows to measure the current value of a DAC channel with an ADC channel or to use the DAC channel also for other on-chip peripherals.
### Testing procedure
- Green CI
- `tests/periph_dac` should still work for any board supporting the `periph_dac` feature.
### Issues/PRs references
19579: doc/doxygen/src/flashing.md: work around Doxygen bug r=maribu a=maribu
### Contribution description
Doxygen fails to render inline code in headers correctly in the version the CI uses. So, work around the issue by not typestetting `stm32flash` as inline code but as regular text.
19583: tests: move cpu related applications to tests/cpu r=maribu a=aabadie
19584: tests/build_system/external_board_dirs: fix broken symlinks r=maribu a=aabadie
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Co-authored-by: Alexandre Abadie <alexandre.abadie@inria.fr>
19565: tests: move core related applications to their own tests/core/ folder r=maribu a=aabadie
19568: tests: move remaining driver related applications to tests/drivers r=maribu a=aabadie
19574: cpu/stm32/periph_gpio: reset PU/PD for ADC channels r=maribu a=gschorcht
### Contribution description
This PR provides a small fix that is relevant when a GPIO has been used as input/output with a pull resistor before it is initialized as an ADC channel.
The PU/PD configuration has to be `0b00` for analog outputs which is corresponds to the reset state. However, if the GPIO is not in the reset state but was used digital input/output with any pull resistor, the PU/PD configuration has also to be reset to use it as ADC channel.
### Testing procedure
- Green CI
- The `periph_adc` test application should still work for any board that supports the `periph_adc` feature.
### Issues/PRs references
Co-authored-by: Alexandre Abadie <alexandre.abadie@inria.fr>
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
19484: makefiles/arch/msp430.inc.mk: Fix compilation issues with GCC 12 r=maribu a=maribu
### Contribution description
This fixes the following compilation issues:
/home/maribu/Repos/software/RIOT/cpu/msp430fxyz/periph/gpio.c: In function 'gpio_periph_mode':
/home/maribu/Repos/software/RIOT/cpu/msp430fxyz/periph/gpio.c:95:15: error: array subscript 0 is outside array bounds of 'msp_port_isr_t[0]' [-Werror=array-bounds]
95 | sel = &(isrport->SEL);
| ^~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
by adding `CFLAGS += --param-min-pagesize=0` for GCC 12 (same issue as already fixed for AVR).
and:
/usr/lib/gcc/msp430-elf/12.2.0/../../../../msp430-elf/bin/ld: warning: /home/maribu/Repos/software/RIOT/cpu/msp430_common/ldscripts/xfa.ld contains output sections; did you forget -T?
by adding the missing `-T`.
### Testing procedure
The following should still work:
- `make BOARD=msb-430 -C examples/hello-world`
- `make BOARD=msb-430 -C tests/xfa flash test`
### Issues/PRs references
None
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
If the DAC peripheral has a mode register (DAC_MCR), it is set to normal mode with buffer enabled and connected to external pin and on-chip peripherals. This allows to measure the current value of a DAC channel or to use the DAC channel also for other on-chip peripherals.
For boards that have not connected the V_REF+ pin to an external reference voltage, the VREFBUF peripheral can be used as V_REF+ if supported by setting `VREFBUF_ENABLE=1`.
PU/PD configuration has to be `0b00` for analog outputs which is corresponds to the reset state. However, if the GPIO is not in reset state but was used digital input/output with any pull resistor, the PU/PD configuration has also to be reset to work as ADC channel.
An `INSERT AFTER` directive no longer can refer to a different linker
script included with `-T path/to/script.ld`. Instead, this adds wrapper
linker scripts that just `INCLUDE` the three individual linker scripts.
This way, the xfa.ld can safely refer back to sections defined in
the vendor linker script.
For some reason, this approach cause the exact issue it fixes for
binutils 2.40 with the binutils in the CI. We stick with the old
linker flags with binutils prior 2.40 to be compatible with both
conflicting behaviors.
The best approach would be to come up with something that works across
different versions of binutils; but no such solution materialized.
19368: debug: add DEBUG_BREAKPOINT() macro, set breakpoint on failed assertion r=benpicco a=benpicco
19529: cpu/stm32/periph/dac: optimize setting DAC r=benpicco a=Enoch247
### Contribution description
The current implmentation right shifted the 16 bit value passed into `dac_set()` down to the 12 bits that the DAC is actually capable of. This patch drops the shift and instead writes the 16 bit value to the DAC's left aligned 12 bit wide data holding register.
### Testing procedure
do something like:
``` c
#include "perip/dac.h"
int main(void)
{
dac_set(DAC_LINE(0), 0xffff/2);
return 0;
}
```
- observe DAC's output is half of vref
### Issues/PRs references
- none known
19531: tests/unittests: allow passing `UNIT_TESTS` via env r=benpicco a=kaspar030
Co-authored-by: Benjamin Valentin <benpicco@beuth-hochschule.de>
Co-authored-by: Joshua DeWeese <jdeweese@primecontrols.com>
Co-authored-by: Kaspar Schleiser <kaspar@schleiser.de>
The current implmentation right shifted the 16 bit value passed into
`dac_set()` down to the 12 bits that the DAC is actually capable of.
This patch drops the shift and instead writes the 16 bit value to the
DAC's left aligned 12 bit wide data holding register.
19516: cpu/rpx0xx: add initial ADC support r=dylad a=dylad
### Contribution description
This PR adds initial support for RP2040 ADC peripheral.
It is rather minimalist, and only use oneshot trigger to perform a single acquisition.
I've tested this PR using a potentiometer connected between GND and 3V3.
GP26, GP27, GP28 has been tested.
### Testing procedure
Select `ADC_RES_12BIT` and flash `tests/periph_adc`
`make BOARD=rpi-pico -C tests/periph_adc`
### Issues/PRs references
None.
Co-authored-by: Dylan Laduranty <dylan.laduranty@mesotic.com>
19346: pkg/tinydtls: allow build for AVR r=benpicco a=benpicco
19512: SUBSYSTEMS.md: add jia200x to subsystems r=benpicco a=jia200x
19513: boards/nrf52840dongle/doc: Update nrfutil pointers r=benpicco a=chrysn
### Contribution description
Nordic changed its nrfutil; this change adjust to it.
I'm not fully happy with recommending that tool at all due to its bad quality (see rambling in https://github.com/RIOT-OS/RIOT/issues/19511), but short of soldering on a debug header or touch-probing it with wires it's the only way in to the device. I may later add follow-up recommendations to switch to riotboot, but this now at least fixes the immediate issue.
### Testing procedure
* Look at the updated documentation.
### Issues/PRs references
Closes: https://github.com/RIOT-OS/RIOT/issues/19511
19514: dist/testbed-support: remove obsolete boards from iotlab archi r=benpicco a=aabadie
Co-authored-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Co-authored-by: Benjamin Valentin <benjamin.valentin@bht-berlin.de>
Co-authored-by: Jose Alamos <jose@alamos.cc>
Co-authored-by: chrysn <chrysn@fsfe.org>
Co-authored-by: Alexandre Abadie <alexandre.abadie@inria.fr>
19507: cpu/cc26x0_cc13x0: Drop feature cortexm_mpu r=maribu a=maribu
### Contribution description
At least the CC2650 doesn't have an MPU, I assume this is also true for the rest of the family.
The CC2652 does have an MPU according to the datasheet. So I keep the feature there in place.
### Testing procedure
E.g.
```
make BOARD=cc2650-launchpad -C tests/mpu_noexec_ram flash test
```
fails. (Note: A successful test run would also crash but with a mem manage handler rather than a hardfault due to an invalid instruction on the stack being executed.)
It would be nice to also test the same for a `cc2652-launchpad`, for which the MPU should work.
### Issues/PRs references
None
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
At least the CC2650 doesn't have an MPU, I assume this is also true
for the rest of the family.
The CC2652 does have an MPU according to the datasheet. So I keep the
feature there in place.
GCC 12 create a bogus array out of bounds warning as it assumes that
because there is special handling for `uart == 0` and `uart == 1`,
`uart` can indeed be `1`. There is an `assert(uart < UART_NUMOF)` above
that would blow up prior to any out of bounds access.
In any case, optimizing out the special handling of `uart == 1` for
when `UART_NUMOF == 1` likely improves the generated code and fixes
the warning.
/home/maribu/Repos/software/RIOT/cc2650/cpu/cc26xx_cc13xx/periph/uart.c:88:8: error: array subscript 1 is above array bounds of 'uart_isr_ctx_t[1]' [-Werror=array-bounds]
88 | ctx[uart].rx_cb = rx_cb;
| ~~~^~~~~~
/home/maribu/Repos/software/RIOT/cc2650/cpu/cc26xx_cc13xx/periph/uart.c:52:23: note: while referencing 'ctx'
52 | static uart_isr_ctx_t ctx[UART_NUMOF];
| ^~~
/home/maribu/Repos/software/RIOT/cc2650/cpu/cc26xx_cc13xx/periph/uart.c:89:8: error: array subscript 1 is above array bounds of 'uart_isr_ctx_t[1]' [-Werror=array-bounds]
89 | ctx[uart].arg = arg;
| ~~~^~~~~~
/home/maribu/Repos/software/RIOT/cc2650/cpu/cc26xx_cc13xx/periph/uart.c:52:23: note: while referencing 'ctx'
52 | static uart_isr_ctx_t ctx[UART_NUMOF];
| ^~~
To be able to reconfigure the PLL multiplier in clock configuration, the existing value has to be reset first. This becomes necessary when changing the core clock, e.g. when booting with riotboot an application that uses USB.
To allow CPU specific definitions in `cpu.h`, `riscv_common/cpu.h` is renamed to ``riscv_common/cpu_common.h` and included in new `cpu.h` files for FE310 and GD32V.
19450: cpu/esp32: fix compilation issues with GCC 12.2 r=benpicco a=gschorcht
### Contribution description
This PR provides the changes in `cpu/esp32` and `cpu/esp_common` to fix the compilation issues with GCC v12.2. It is required as the first step in the preparation of the upgrade to ESP-IDF version 5.1.
**Please note**: Insead of fixing the ESP-IDF 4.4 code itself by a big bunch of patches to fix the compilation problems with GCC v12.2, it temporarily disables some warnings. The reason is that the ESP-IDF 5.1 requires GCC v12.2 and should be fixed for this compiler version by the vendor.
### Testing procedure
Green CI
The change were already tested with all ESP-specific modules like `esp_now`, `esp_wifi`, `esp_spi` and `esp_ble` for all supported ESP platforms.
### Issues/PRs references
Prerequisite for https://github.com/RIOT-OS/riotdocker/pull/227
Fixes issue #19421
19476: native/syscalls: rename real_clock_gettime to clock_gettime r=benpicco a=Teufelchen1
### Contribution description
When compiling RIOT for native using a recent LLVM and enabling ASAN, one might encounter "Duplicated symbol".
This is due to a name clash with `real_clock_gettime()` in compiler-rt from [LLVM](f50246da65), I renamed RIOTs `real_clock_gettime` and just default to the posix function `clock_gettime`. The wrapper existed, most likely, for consistency only.
(The best solution would probably to convince the LLVM folks to declare their symbol as `static` and refactor a bit)
### Testing procedure
Passing CI should be enough.
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
Co-authored-by: Teufelchen1 <bennet.blischke@haw-hamburg.de>
Since the USB OTG FIFO sizes are partly defined in 32-bit words and partly in bytes, the documentation of the of the USB OTG FIFO size definitions is extended by the respective unit.
Since the USB OTG FIFO sizes are partly defined in 32-bit words and partly in bytes, the documentation of the of the USB OTG FIFO size definitions is extended by the respective unit.
Since the USB OTG FIFO sizes are partly defined in 32-bit words and partly in bytes, the documentation of the of the USB OTG FIFO size definitions is extended by the respective unit.
