void LOGUARTClass::begin( const uint32_t dwBaudRate )
{
#if LOG_UART_MODIFIABLE_BAUD_RATE
/* log uart initialize in 38400 baud rate.
* If we change baud rate here, Serail Monitor would not detect this change and show nothing on screen.
*/
log_uart_init(&log_uart_obj, dwBaudRate, 8, ParityNone, 1);
#else
log_uart_init(&log_uart_obj, 38400, 8, ParityNone, 1);
#endif
log_uart_irq_set(&log_uart_obj, IIR_RX_RDY, 1);
log_uart_irq_handler(&log_uart_obj, arduino_loguart_irq_handler, (uint32_t)_rx_buffer);
}
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
uint32_t uart_tx, uart_rx;
uint32_t uart_sel;
uint8_t uart_idx;
PHAL_RUART_OP pHalRuartOp;
PHAL_RUART_ADAPTER pHalRuartAdapter;
#ifdef CONFIG_GDMA_EN
PUART_DMA_CONFIG pHalRuartDmaCfg;
PHAL_GDMA_OP pHalGdmaOp=&UartGdmaOp;
#endif
// Determine the UART to use (UART0, UART1, or UART3)
uart_tx = pinmap_peripheral(tx, PinMap_UART_TX);
uart_rx = pinmap_peripheral(rx, PinMap_UART_RX);
uart_sel = pinmap_merge(uart_tx, uart_rx);
uart_idx = RTL_GET_PERI_IDX(uart_sel);
if (unlikely(uart_idx == (uint8_t)NC)) {
DBG_UART_ERR("%s: Cannot find matched UART\n", __FUNCTION__);
return;
}
#ifdef CONFIG_MBED_ENABLED
else if (uart_idx == UART_3) {
obj->index = UART_3;
goto init_stdio;
}
#endif
pHalRuartOp = &(obj->hal_uart_op);
pHalRuartAdapter = &(obj->hal_uart_adp);
if ((NULL == pHalRuartOp) || (NULL == pHalRuartAdapter)) {
DBG_UART_ERR("%s: Allocate Adapter Failed\n", __FUNCTION__);
return;
}
HalRuartOpInit((VOID*)pHalRuartOp);
#ifdef CONFIG_GDMA_EN
HalGdmaOpInit((VOID*)pHalGdmaOp);
pHalRuartDmaCfg = &obj->uart_gdma_cfg;
pHalRuartDmaCfg->pHalGdmaOp = pHalGdmaOp;
pHalRuartDmaCfg->pTxHalGdmaAdapter = &obj->uart_gdma_adp_tx;
pHalRuartDmaCfg->pRxHalGdmaAdapter = &obj->uart_gdma_adp_rx;
pHalRuartDmaCfg->pTxDmaBlkList = &obj->gdma_multiblk_list_tx;
pHalRuartDmaCfg->pRxDmaBlkList = &obj->gdma_multiblk_list_rx;
_memset((void*)(pHalRuartDmaCfg->pTxHalGdmaAdapter), 0, sizeof(HAL_GDMA_ADAPTER));
_memset((void*)(pHalRuartDmaCfg->pRxHalGdmaAdapter), 0, sizeof(HAL_GDMA_ADAPTER));
_memset((void*)(pHalRuartDmaCfg->pTxDmaBlkList), 0, sizeof(UART_DMA_MULTIBLK));
_memset((void*)(pHalRuartDmaCfg->pRxDmaBlkList), 0, sizeof(UART_DMA_MULTIBLK));
#endif
pHalRuartOp->HalRuartAdapterLoadDef(pHalRuartAdapter, uart_idx);
pHalRuartAdapter->PinmuxSelect = RTL_GET_PERI_SEL(uart_sel);
pHalRuartAdapter->BaudRate = 9600;
pHalRuartAdapter->IrqHandle.Priority = 6;
if (HalRuartInit(pHalRuartAdapter) != HAL_OK) {
DBG_UART_ERR("serial_init Err!\n");
return;
}
pHalRuartOp->HalRuartRegIrq(pHalRuartAdapter);
pHalRuartOp->HalRuartIntEnable(pHalRuartAdapter);
#ifdef CONFIG_MBED_ENABLED
init_stdio:
// For stdio management
if (uart_idx == STDIO_UART) {
// default setting to 38400
if (stdio_uart_inited) return;
log_uart_init(&stdio_uart_log, 38400, 8, ParityNone, 1);
stdio_uart_inited = 1;
memcpy(&stdio_uart, obj, sizeof(serial_t));
}
#endif
}
