Hi,
I'm trying to get up and running using the PMW3360 sensor driver (https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/drivers/pmw3360.html) using the NRF52840 DK.
I'm using the sample DTS provided on that page:
&pinctrl {
spi1_default_alt: spi1_default_alt {
group1 {
psels = <NRF_PSEL(SPI_SCK, 0, 16)>,
<NRF_PSEL(SPI_MISO, 0, 15)>,
<NRF_PSEL(SPI_MOSI, 0, 17)>;
};
};
spi1_sleep_alt: spi1_sleep_alt {
group1 {
psels = <NRF_PSEL(SPI_SCK, 0, 16)>,
<NRF_PSEL(SPI_MISO, 0, 15)>,
<NRF_PSEL(SPI_MOSI, 0, 17)>;
low-power-enable;
};
};
};
&spi1 {
compatible = "nordic,nrf-spim";
status = "okay";
pinctrl-0 = <&spi1_default_alt>;
pinctrl-1 = <&spi1_sleep_alt>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 13 0>;
pmw3360@0 {
compatible = "pixart,pmw3360";
reg = <0>;
irq-gpios = <&gpio0 21 0>;
spi-max-frequency = <2000000>;
label = "PMW3360";
};
};
To my eye (I've spent quite a few hours over the course of a few days reviewing/learning about DTS) I don't see anything obviously wrong. However, building the project fails:
-- Application: /Users/max/Documents/my_project/mouse/ptx -- Cache files will be written to: /Users/max/Library/Caches/zephyr -- Zephyr version: 3.0.99 (/Users/max/Documents/nrfconnect/zephyr) -- Found west (found suitable version "0.12.0", minimum required is "0.7.1") -- Board: nrf52840dk_nrf52840 -- Found dtc: /opt/nordic/ncs/v1.9.1/toolchain/bin/dtc (found suitable version "1.6.1", minimum required is "1.4.6") -- Found toolchain: gnuarmemb (/opt/nordic/ncs/v1.9.1/toolchain) -- Found BOARD.dts: /Users/max/Documents/nrfconnect/zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts -- Found devicetree overlay: /Users/max/Documents/my_project/mouse/ptx/boards/nrf52840dk_nrf52840.overlay devicetree error: /Users/max/Documents/my_project/mouse/ptx/boards/nrf52840dk_nrf52840.overlay:4 (column 66): parse error: expected number or parenthesized expression CMake Error at /Users/max/Documents/nrfconnect/zephyr/cmake/modules/dts.cmake:213 (message): gen_defines.py failed with return code: 1 Call Stack (most recent call first): /Users/max/Documents/nrfconnect/zephyr/cmake/modules/zephyr_default.cmake:121 (include) /Users/max/Documents/nrfconnect/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:51 (include) /Users/max/Documents/nrfconnect/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:81 (include_boilerplate) /Users/max/Documents/my_project/mouse/ptx/build/CMakeLists.txt:8 (find_package)
Note that 1) the overlay is discovered and 2) there is no column 66 on line 4 in my overlay. I went to the `zephyr.dts.pre` to see if I could spot the issue, where my overlay was present at the bottom:
# 1 "<command-line>" 2
# 1 "/Users/max/Documents/my_project/mouse/ptx/boards/nrf52840dk_nrf52840.overlay" 1
&pinctrl {
spi1_default_alt: spi1_default_alt {
group1 {
psels = <((((((0) * 32U) + (16)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_SCK & 0xFFFFU) << 16U))>,
<((((((0) * 32U) + (15)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_MISO & 0xFFFFU) << 16U))>,
<((((((0) * 32U) + (17)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_MOSI & 0xFFFFU) << 16U))>;
};
};
spi1_sleep_alt: spi1_sleep_alt {
group1 {
psels = <((((((0) * 32U) + (16)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_SCK & 0xFFFFU) << 16U))>,
<((((((0) * 32U) + (15)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_MISO & 0xFFFFU) << 16U))>,
<((((((0) * 32U) + (17)) & 0x3FU) << 0U) | ((NRF_FUN_SPI_MOSI & 0xFFFFU) << 16U))>;
low-power-enable;
};
};
};
&spi1 {
compatible = "nordic,nrf-spim";
status = "okay";
pinctrl-0 = <&spi1_default_alt>;
pinctrl-1 = <&spi1_sleep_alt>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 13 0>;
pmw3360@0 {
compatible = "pixart,pmw3360";
reg = <0>;
irq-gpios = <&gpio0 21 0>;
spi-max-frequency = <2000000>;
label = "PMW3360";
};
};
Line 4 col 66 is where `NRF_FUN_SPI_SCK` is referenced, at the first character. I'm assuming that -- based on the parse error -- the macro for `NRF_FUN_SPI_SCK` isn't able to be resolved.
A few questions:
- I can't find any documentation for `NRF_FUN_*` definitions via search and I'm not sure where I should be looking.
- Is there something obviously wrong with my DTS overlay?
- Are there any examples that set up a similar sensor which I should take a look at?
Thanks,
Max
