NucleoL4R5ZI - Virtual COM PORT works and LPUART Tx(PG7) Works but Rx(PG8) Not working
Virtual COM port & LPUART Tx(PG7) Works fine, but LPUART Rx(PG8) is not working.
Tried in both Int & polling mode, able to send and receive via Virtual COM port.
Configuration:
static struct MCU_UART_S testIf_UARTStruct =
{
.TxMode = KISO_HAL_TRANSFER_MODE_POLLING,
.RxMode = KISO_HAL_TRANSFER_MODE_POLLING,
.Datarate = 115200U,
.huart.Instance = LPUART1,
.huart.Init.BaudRate = 115200U,
.huart.Init.WordLength = UART_WORDLENGTH_8B,
.huart.Init.StopBits = UART_STOPBITS_1,
.huart.Init.Parity = UART_PARITY_NONE,
.huart.Init.Mode = UART_MODE_TX_RX,
.huart.Init.HwFlowCtl = UART_HWCONTROL_NONE,
.huart.Init.OverSampling = UART_OVERSAMPLING_16,
.huart.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE,
.huart.Init.ClockPrescaler = UART_PRESCALER_DIV1,
.huart.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT,
};
Setup Code:
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWREx_EnableVddIO2();
GPIO_InitTypeDef GPIO_InitStruct = { 0 };
__LPUART1_CLK_ENABLE();
__GPIOG_CLK_ENABLE();
/* UART RX/TX GPIO pin configuration */
GPIO_OpenClockGate(GPIO_PORT_G, PING_LPUART_TX | PING_LPUART_RX);
GPIO_InitStruct.Pin = PING_LPUART_TX | PING_LPUART_RX;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
Read value in gState & RxState of uart handle both seems to be fine (no error codes). Both gState and RxState has value 32 (initialized state).