Hi,
in A15 of Tda2sx, i using the uart, uart2 may interrupts in transmit,but can't receive, the following code.
int32_t UARTx_Init(UART_INST_t uartInstance)
{
int32_t retVal = STW_SOK;
uint32_t uartx_BAUD_RATE;
uint32_t uartx_OPER_MODE;
uint32_t uartx_UART_PARITY_NONE;
uint32_t uartx_UART_FRAME_WORD_LENGTH_8;
uint32_t uartx_UART_LCR_NB_STOP_1BIT;
Vps_printf("tm: UART%u Init.\n", uartInstance + 1);
/* Configure PRCM for UART instance */
retVal = UtilsUARTxPrcm(uartInstance);
if (STW_SOK != retVal)
{
LibAbortBoot();
}
/* Configure Pin Mux for UART instance */
switch (uartInstance)
{
case UART2_INST:
UART2SetPinMux();
uartx_BAUD_RATE = BAUD_RATE;
uartx_OPER_MODE = UART13x_OPER_MODE;
uartx_UART_PARITY_NONE = UART_PARITY_NONE;
uartx_UART_FRAME_WORD_LENGTH_8 = UART_FRAME_WORD_LENGTH_8;
uartx_UART_LCR_NB_STOP_1BIT = UART_LCR_NB_STOP_1BIT;
break;
case UART3_INST:
UART3SetPinMux();
uartx_BAUD_RATE = BAUD_RATE;
uartx_OPER_MODE = UART13x_OPER_MODE;
uartx_UART_PARITY_NONE = UART_PARITY_NONE;
uartx_UART_FRAME_WORD_LENGTH_8 = UART_FRAME_WORD_LENGTH_8;
uartx_UART_LCR_NB_STOP_1BIT = UART_LCR_NB_STOP_1BIT;
break;
default:
break;
}
/* Initialize UART Peripheral */
retVal = UARTxParam(uartInstance,
(uint32_t) uartx_BAUD_RATE,
(uint32_t) uartx_OPER_MODE,
(uint32_t) uartx_UART_PARITY_NONE,
(uint32_t) uartx_UART_FRAME_WORD_LENGTH_8,
(uint32_t) uartx_UART_LCR_NB_STOP_1BIT);
return retVal;
}
int32_t UARTxParam(UART_INST_t uartInstance,
uint32_t baudRate,
uint32_t operMode,
uint32_t parity,
uint32_t wordLen,
uint32_t stopBit)
{
uint32_t uart_base_address;
uint32_t divisorValue = 0, fifoConfig = 0;
int32_t retVal = STW_SOK;
Vps_printf("tm: UART%u_Init Intr Param cfg.\n", uartInstance + 1);
switch (uartInstance)
{
case UART2_INST:
uart_base_address = SOC_UART2_BASE;
break;
case UART3_INST:
uart_base_address = SOC_UART3_BASE;
break;
default:
retVal = STW_EFAIL;
break;
}
if (retVal == STW_SOK)
{
/* Performing a module reset. */
UARTModuleReset(uart_base_address);
/* Performing FIFO configurations. */
/*
** - Transmit Trigger Level Granularity is 4
** - Receiver Trigger Level Granularity is 1
** - Transmit FIFO Space Setting is 56. Hence TX Trigger level
** is 8 (64 - 56). The TX FIFO size is 64 bytes.
** - The Receiver Trigger Level is 1.
** - Clear the Transmit FIFO.
** - Clear the Receiver FIFO.
** - DMA Mode enabling shall happen through SCR register.
** - DMA Mode 0 is enabled. DMA Mode 0 corresponds to No
** DMA Mode. Effectively DMA Mode is disabled.
*/
fifoConfig = UART_FIFO_CONFIG(UART_TRIG_LVL_GRANULARITY_4,
UART_TRIG_LVL_GRANULARITY_4,
UART_FCR_TX_TRIG_LVL_56,
UART_FCR_RX_TRIG_LVL_16,
1U,
1U,
UART_DMA_EN_PATH_SCR,
UART_DMA_MODE_0_ENABLE);
/* Configuring the FIFO settings. */
UARTFIFOConfig(uart_base_address, fifoConfig);
/* Performing Baud Rate settings. */
/* Computing the Divisor Value. */
divisorValue = UARTDivisorValCompute(UART_MODULE_INPUT_CLK,
baudRate,
operMode,
UART_MIR_OVERSAMPLING_RATE_42);
/* Programming the Divisor Latches. */
UARTDivisorLatchWrite(uart_base_address, divisorValue);
/* Switching to Configuration Mode B. */
UARTRegConfigModeEnable(uart_base_address, UART_REG_CONFIG_MODE_B);
/* Programming the Line Characteristics. */
UARTLineCharacConfig(uart_base_address,
(wordLen | stopBit),
parity);
/* Disabling write access to Divisor Latches. */
UARTDivisorLatchDisable(uart_base_address);
/* Disabling Break Control. */
UARTBreakCtl(uart_base_address, UART_BREAK_COND_DISABLE);
/* Uart enable */
UARTOperatingModeSelect(uart_base_address, operMode);
/* Performing Interrupt configurations. */
UartxInterruptEnable(uartInstance);
}
return retVal;
}
static void UartxInterruptEnable(UART_INST_t uartInstance)
{
uint32_t uart_base_address;
Vps_printf("tm: UART%u_Init Intr cfg.\n", uartInstance + 1);
/* Configuring INTC to receive UART interrupts. */
switch (uartInstance)
{
case UART2_INST:
uart_base_address = SOC_UART2_BASE;
break;
case UART3_INST:
uart_base_address = SOC_UART3_BASE;
break;
default:
break;
}
/* Enabling the specified UART interrupts. */
UARTIntEnable(uart_base_address, (UART_INT_LINE_STAT | UART_INT_THR | UART_INT_RHR_CTI));
}
Best Regards.
