tmedicci opened a new pull request, #3461:
URL: https://github.com/apache/nuttx-apps/pull/3461
## Summary
* system/irtest: Set `irtest` command line size to CONFIG_LINE_MAX
- Let `irtest` command line size be equal to CONFIG_LINE_MAX so that
bigger (or smaller) commands can be set.
* system/irtest: Avoids silently truncating long write_data commands
- Long write_data commands can be truncated without any check due to the
maximum size of CONFIG_SYSTEM_IRTEST_MAX_SIRDATA. This PR adds a check to avoid
a silent fail.
* system/irtest: Fix issues regarding portability and buffer size
- This PR fixes issues regarding portability by using variables with fixed
width (and their format macro constants).
* examples: Remove deprecated `rmtchar` example application
- The upper-half RMT driver is no longer available on NuttX. Instead,
Espressif's RMT peripheral was bound directly to the lirc driver.
## Impact
Impact on user: Yes. Improve user's experience when trying `irqtest` testing
application.
Impact on build: No.
Impact on hardware: No.
Impact on documentation: No.
Impact on security: No.
Impact on compatibility: No.
## Testing
Build the `rmt` defconfig of any Espressif SoC, interconnect output and
input pins externally and run `irqtest`. For ESP32-C6-DevKitC-1 V1.2, for
instance:
### Building
```
make -j distclean
./tools/configure.sh -S esp32c6-devkitc:rmt
kconfig-tweak -e SYSTEM_IRTEST
make olddefconfig
make flash ESPTOOL_PORT=/dev/ttyUSB0
picocom -b 115200 /dev/ttyUSB0
```
### Running
Connect GPIO 8 (RMT output pin) to GPIO 2 (RMT input pin) externally and run
`irqtest`:
```
nsh> irtest
$open_device(/dev/lirc0)
$open_device(/dev/lirc1)
$write_data(1) 16777229 16 16777235 23
$read_data(0,4)
16777229, 16, 16777235, 23
```
### Results
Read data equals written data. Loopback test succeeded!
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