The following description is using i2c1 and PB10, PB11
Code: Select all
Path:
/home/user/shared/yocto/build/tmp-glibc/work/numaker_som_ma35d16a81-poky-linux/u-boot-ma35d1/2020.07-r0/git/arch/arm/dts/ma35d1-sdcard0.dts
&i2c1 {
status = "okay";
};
&pinctrl {
i2c1 {
pinctrl_i2c1: i2c1grp{
nuvoton,pins =
<SYS_GPB_MFPH_PB10MFP_I2C1_SDA &pcfg_default>,
<SYS_GPB_MFPH_PB11MFP_I2C1_SCL &pcfg_default>;
};
};
};
Please ensure that you have confirmed the type of flash you are using to boot. In this example, we are using an SD card to boot
Code: Select all
Path:
/home/user/shared/yocto/build/tmp-glibc/work/numaker_som_ma35d16a81-poky-linux/u-boot-ma35d1/2020.07-r0/build/ma35d1_sdcard0_defconfig
Device Drivers --->
I2C support --->
[*] Enable Driver Model for I2C drivers
[*] MA35D1 I2C driver
Command line interface --->
Device access commands --->
[*] i2c
Execute the following command to set the I2C bus to 0
Code: Select all
MA35D1 > i2c bus
MA35D1 > i2c dev 0