UART1 (/dev/ttyS1) disapear after reboot (PICO ULTRA / Ubuntu)

• cem

  Posts: 7

  Joined: 2024-09-12 12:55

  2024-09-12 13:03

  Hello!
  
  I have PICO Ultra board with latest Ubuntu image flashed.
  With "sudo luckfox-config" all 6 UART available ports were enabled. (UART2 - debug, all other works as expected).
  After system reboot only 5 ports are visible, UART1 (/dev/ttyS1) is missing.

  Code: Select all

  pico@luckfox:~$ ls /dev/ttyS*
  /dev/ttyS0  /dev/ttyS2  /dev/ttyS3  /dev/ttyS4  /dev/ttyS5

  Code: Select all

  pico@luckfox:~$ cat /etc/luckfox.cfg
  SPI0_M0_CS_ENABLE=1
  SPI0_M0_MODE=1
  TS_ENABLE=0
  RGB_ENABLE=0
  CSI_ENABLE=0
  UART3_M0_STATUS=1
  UART4_M0_STATUS=1
  UART2_M1_STATUS=1
  UART5_M1_STATUS=1
  UART1_M1_STATUS=1
  UART0_M1_STATUS=1

  Could you please explain this behavior ? How to fix it ?
  
  Thanks!

  • Quote

sudo nano /etc/luckfox.cfg
sudo luckfox-config load

sudo luckfox-config show

PWM8_M1 -              *UART4_M1_RX - GPIO1_C4 |       | GND
 PWM9_M1 -              *UART4_M1_TX - GPIO1_C5 |       | MICBIAS
         - I2C4_M0_SCL - UART1_M1_RTS- GPIO2_A1 |       | MIC1P
         - I2C4_M0_SDA - UART1_M1_CTS- GPIO2_A0 |       | MIC1N
                        *UART1_M1_RX - GPIO2_A5 |       | GND
                        *UART1_M1_TX - GPIO2_A4 |       | GPIO1_C7 -             -             - PWM11_M1

sudo luckfox-config load

sudo nano /usr/bin/luckfox-config

multi_pins_group+=("$(echo "$pin" | sed -E 's/(UART[0-9]+_M[0-9]+)_.*$/\1/g' | sed 's/^ //')")

multi_pins_group+=("$(echo "$pin" | sed -E 's/(UART[0-9]+_M[0-9]+)_.*$/\1/g' | sed 's/^ //' | sed 's/[[:space:]]//g')")

 | sed 's/[[:space:]]//g'