Hello all,
I'm currently developing some test FW for our custom hardware which include a nRF5340 and nRF7002, I made a small program to test the the different power supply via UART command to enable/disable GPIO.
For some reason my UART communication is not stable and failed every ~30 seconds with this error :
[17:16:06.655] WiFi Buck Power turned ON [17:16:06.655] uart:~$ [17:16:07.647] [00:00:36.256,958] power_control: WiFi Buck Power turned ON (GPIO0.12) [17:16:07.647] uart:~$ [00:00:36.256,988] power_control: WiFi Buck Power pin read-back: 0 [17:16:07.647] uart:~$ uart:~$ [17:16:08.287] Serial Error: Device disconnected or communication error: ClearCommError failed (PermissionError(13, 'Le périphérique ne reconnaît pas la commande.', None, 22))
I'm new to the Zephyr stack and was wondering if can be a configuration issue / driver issue, I use nRF connect SDK 3.0.2.
Here is my proj.conf file and my overlay files :
# Main project configuration CONFIG_GPIO=y CONFIG_SERIAL=y CONFIG_PRINTK=y CONFIG_UART_CONSOLE=y # GPIO configuration CONFIG_GPIO_NRFX=y # Allow application core to access all GPIO pins CONFIG_ARM_NONSECURE_PREEMPTIBLE_SECURE_CALLS=n # Explicitly disable network core and BT to free P1.00 CONFIG_BOARD_ENABLE_CPUNET=n CONFIG_BT=n # Disable UART forwarding that might use P1.00 CONFIG_NRF53_UPGRADE_NETWORK_CORE=n # Configure logging CONFIG_LOG=y CONFIG_LOG_DEFAULT_LEVEL=3 CONFIG_LOG_MODE_DEFERRED=y CONFIG_LOG_BACKEND_UART=n CONFIG_LOG_PRINTK=y CONFIG_LOG_PROCESS_THREAD_STACK_SIZE=1024 CONFIG_LOG_PROCESS_THREAD_STARTUP_DELAY_MS=4000 CONFIG_LOG_BUFFER_SIZE=8192 CONFIG_LOG_FUNC_NAME_PREFIX_DBG=n # Shell config CONFIG_SHELL=y CONFIG_SHELL_LOG_BACKEND=y CONFIG_SHELL_BACKEND_SERIAL_INIT_PRIORITY=51 CONFIG_SHELL_BACKEND_SERIAL_CHECK_DTR=n CONFIG_SHELL_VT100_COMMANDS=n CONFIG_SHELL_VT100_COLORS=n CONFIG_SHELL_BACKEND_SERIAL_RX_RING_BUFFER_SIZE=256 CONFIG_SHELL_BACKEND_SERIAL_TX_RING_BUFFER_SIZE=256 # Enable USB CDC ACM CONFIG_USB_DEVICE_STACK=y CONFIG_USB_DEVICE_REMOTE_WAKEUP=n CONFIG_USB_DEVICE_PRODUCT="ROOMZ hardware" CONFIG_USB_DEVICE_VID=0x1915 CONFIG_USB_DEVICE_PID=0x530D CONFIG_USB_CDC_ACM=y CONFIG_USB_CDC_ACM_LOG_LEVEL_ERR=y CONFIG_USB_DEVICE_LOG_LEVEL_ERR=y CONFIG_UART_LINE_CTRL=n CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n s # ADC support CONFIG_ADC=y
/*
* Power Supply Test Overlay for nRF5340 Application Core
*/
#include <zephyr/dt-bindings/adc/adc.h>
#include <zephyr/dt-bindings/adc/nrf-adc.h>
/ {
aliases {
power-test-led0 = &led0;
power-test-led1 = &led1;
power-test-sw0 = &button0;
power-test-sw1 = &button1;
};
power_supplies {
compatible = "gpio-leds";
/* 3V3 power supply control - P1.12 */
supply_3v3: supply_3v3 {
gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
label = "3V3 Power Supply Enable";
};
/* WiFi IO power enable - P1.00 */
wifi_io_power: wifi_io_power {
gpios = <&gpio1 0 (GPIO_ACTIVE_HIGH | GPIO_PUSH_PULL)>;
label = "WiFi IO Power Enable";
};
/* AN7002Q-P Buck enable - P0.12 */
wifi_buck_power: wifi_buck_power {
gpios = <&gpio0 12 (GPIO_ACTIVE_HIGH | GPIO_PUSH_PULL)>;
label = "WiFi Buck Power Enable";
};
/* ITE enable - P0.02 */
ite_power: ite_power {
gpios = <&gpio0 2 (GPIO_ACTIVE_HIGH | GPIO_PUSH_PULL)>;
label = "ITE Power Enable";
};
/* NFC enable - P1.05 */
nfc_power: nfc_power {
gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
label = "NFC Power Enable";
};
/* ITE Flash output enable - P1.11 */
ite_flash_oe: ite_flash_oe {
gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
label = "ITE Flash Output Enable";
};
};
power_status {
compatible = "gpio-keys";
/* TPS status - P0.28 */
tps_status: tps_status {
gpios = <&gpio0 28 GPIO_ACTIVE_HIGH>;
label = "TPS Status";
};
/* PMIC power good - P1.07 */
pmic_pwrgood: pmic_pwrgood {
gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
label = "PMIC Power Good";
};
/* ITE ready status - P0.24 */
ite_ready: ite_ready {
gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>;
label = "ITE Ready Status";
};
};
};
/* Enable GPIO ports */
&gpio0 {
status = "okay";
};
&gpio1 {
status = "okay";
};
/* ADC configuration for battery voltage monitoring */
&adc {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
zephyr,gain = "ADC_GAIN_1_6";
zephyr,reference = "ADC_REF_INTERNAL";
zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
zephyr,input-positive = <NRF_ADC_AIN0>; /* P0.04 */
zephyr,resolution = <12>;
};
};
/ {
chosen {
zephyr,console = &cdc_acm_uart0;
zephyr,shell-uart = &cdc_acm_uart0;
};
};
&zephyr_udc0 {
cdc_acm_uart0: cdc_acm_uart0 {
compatible = "zephyr,cdc-acm-uart";
};
};
/* Disable the entire GPIO forwarder to free up P1.00 */
&gpio_fwd {
status = "disabled";
};
Thank you in advance for your help, maybe it's also a hardware issue since the board is a prototype, but we've follow the design recommendation for the UART part.
Best regards,
Valentin Künti
