I'm trying to access an SD card with FAT_FS, with no success. I hooked an analyser to the SPI, but it's completely dead. I'm using NCS v1.6.0.
&spi1 {
compatible = "nordic,nrf-spim";
status = "okay";
sck-pin = <7>;
mosi-pin = <5>;
miso-pin = <6>;
cs-gpios = <&gpio0 8 GPIO_ACTIVE_LOW>,
<&gpio0 9 GPIO_ACTIVE_LOW>,
<&gpio0 15 GPIO_ACTIVE_LOW>,
<&gpio0 19 GPIO_ACTIVE_LOW>;
[... three other spi drivers... then the fourth, my SD card driver...]
sdhc3: sdhc@3 {
compatible = "zephyr,mmc-spi-slot";
reg = <3>;
status = "okay";
label = "SDHC0";
spi-max-frequency = <24000000>;
};
};
Is there something I forgot, since I can't see any traffic on SPI1?
If the device tree looks correct for FAT_FS, what else could it be?
For later reference, how do find the correct "compatible = [xxx]" in the driver source, so I can match the device tree instance with the driver/sample I want to test?
PS. I just downloaded v1.6.1 through nRF Connect, but it only downloaded the toolchain, not the SDK. When I select update SDK it doesn't even try to download (finishes instantly). When I select update toolchain, it downloads and installs (few minutes). This isn't a priority now, the FAT_FS problem is. That's why I'm still on 1.6.0.
