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Description
The same is to test uart1, I test the example program driver/uart/echo_bot is no problem, indicating that there is no problem with the hardware, but there is a problem with the test sample program modbus/rtu_server, No matter what is sent to the serial port, the serial port will return multiple bytes of 0x00.
I've made the following changes to the these files：
&usart1 {
status = "okay";
current-speed = <9600>;
pinctrl-0 = <&usart1_default>;
pinctrl-names = "default";
modbus0 {
compatible = "zephyr,modbus-serial";
status = "okay";
//de-gpios = <&gpioa 6 GPIO_ACTIVE_LOW>;
};
};
CONFIG_LOG=n
CONFIG_CONSOLE=n
CONFIG_UART_CONSOLE=n
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
static int uart_wch_configure(const struct device *dev,
const struct uart_config *cfg)
{
return 0;
};
#endif
const static struct modbus_iface_param server_param = {
.mode = MODBUS_MODE_RTU,
.server = {
.user_cb = &mbs_cbs,
.unit_id = 1,
},
.serial = {
.baud = 9600,
.parity = UART_CFG_PARITY_NONE,
},
};