Hi,
UART2= UART_EE_C_
UART3= UART_AO_B_
What I have to do to use UART2 and UART3?
How can I configure Radxa Zero for using these ports?
Also,
ADC1=SARADC_CH1
ADC2=SARADC_CH2
What I have to do to use ADC1 and ADC2?
How can I configure Radxa Zero for using these ports?
To use three UART I have to configure the overlays params in the file /boot/uEnv.txt to:
overlays=meson-g12a-uart-ao-a-on-gpioao-0-gpioao-1 meson-g12a-uart-ao-b-on-gpioao-8-gpioao-9 meson-g12a-uart-ee-c
To read the value of SARADC_CH1 I use the following commands:
cat /sys/bus/platform/drivers/meson-saradc/ff809000.adc/iio:device0/in_voltage1_raw
cat /sys/bus/platform/drivers/meson-saradc/ff809000.adc/iio:device0/in_voltage1_mean_raw
EDIT:
To read the value of SARADC_CH2 I use the following commands:
cat /sys/bus/platform/drivers/meson-saradc/ff809000.adc/iio:device0/in_voltage2_raw
cat /sys/bus/platform/drivers/meson-saradc/ff809000.adc/iio:device0/in_voltage2_mean_raw
May I know how do you get the AO-B working? Seems that loopback test failed on my side, using baud rate 1500000