diff options
Diffstat (limited to 'bsp/lpc54114-lite/drivers/drv_uart.c')
| -rw-r--r-- | bsp/lpc54114-lite/drivers/drv_uart.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/bsp/lpc54114-lite/drivers/drv_uart.c b/bsp/lpc54114-lite/drivers/drv_uart.c index fc0999d4a4..0ccce7632c 100644 --- a/bsp/lpc54114-lite/drivers/drv_uart.c +++ b/bsp/lpc54114-lite/drivers/drv_uart.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2018, RT-Thread Development Team + * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * @@ -42,14 +42,14 @@ static rt_err_t lpc_configure(struct rt_serial_device *serial, struct serial_con * config.enableRx = false; */ USART_GetDefaultConfig(&u0_config); - - u0_config.baudRate_Bps = cfg->baud_rate; + + u0_config.baudRate_Bps = cfg->baud_rate; u0_config.parityMode = kUSART_ParityDisabled, u0_config.stopBitCount = kUSART_OneStopBit, u0_config.bitCountPerChar = kUSART_8BitsPerChar, u0_config.loopback = false, u0_config.txWatermark = kUSART_TxFifo0, - u0_config.rxWatermark = kUSART_RxFifo1, + u0_config.rxWatermark = kUSART_RxFifo1, u0_config.enableTx = true; u0_config.enableRx = true; @@ -143,7 +143,7 @@ int rt_hw_uart_init(void) struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT; #ifdef BSP_USING_UART0 - + uart = &uart0; serial0.ops = &lpc_uart_ops; @@ -152,40 +152,40 @@ int rt_hw_uart_init(void) /* attach 12 MHz clock to FLEXCOMM0 (debug console) */ CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0); - + /* reset FLEXCOMM for USART */ RESET_PeripheralReset(kFC0_RST_SHIFT_RSTn); - + /* Enables the clock for the IOCON block. 0 = Disable; 1 = Enable.: 0x01u */ CLOCK_EnableClock(kCLOCK_Iocon); - + const uint32_t port0_pin0_config = ((IOCON->PIO[PORT0_IDX][PIN0_IDX] & - (~(IOCON_PIO_FUNC_MASK | IOCON_PIO_DIGIMODE_MASK))) /* Mask bits to zero which are setting */ - | IOCON_PIO_FUNC(1) /* Selects pin function: PORT00 (pin 31) is configured as FC0_RXD_SDA_MOSI. */ - | IOCON_PIO_DIGIMODE(1)); /* Select Analog/Digital mode : Digital mode. */ - + (~(IOCON_PIO_FUNC_MASK | IOCON_PIO_DIGIMODE_MASK))) /* Mask bits to zero which are setting */ + | IOCON_PIO_FUNC(1) /* Selects pin function: PORT00 (pin 31) is configured as FC0_RXD_SDA_MOSI. */ + | IOCON_PIO_DIGIMODE(1)); /* Select Analog/Digital mode : Digital mode. */ + IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN0_IDX, port0_pin0_config); /* PORT0 PIN0 (coords: 31) is configured as FC0_RXD_SDA_MOSI */ - - const uint32_t port0_pin1_config = ((IOCON->PIO[PORT0_IDX][PIN1_IDX] & - (~(IOCON_PIO_FUNC_MASK | IOCON_PIO_DIGIMODE_MASK))) /* Mask bits to zero which are setting */ - | IOCON_PIO_FUNC(1) /* Selects pin function: PORT01 (pin 32) is configured as FC0_TXD_SCL_MISO. */ + + const uint32_t port0_pin1_config = ((IOCON->PIO[PORT0_IDX][PIN1_IDX] & + (~(IOCON_PIO_FUNC_MASK | IOCON_PIO_DIGIMODE_MASK))) /* Mask bits to zero which are setting */ + | IOCON_PIO_FUNC(1) /* Selects pin function: PORT01 (pin 32) is configured as FC0_TXD_SCL_MISO. */ | IOCON_PIO_DIGIMODE(1)); /* Select Analog/Digital mode : Digital mode. */ - + IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN1_IDX, port0_pin1_config); /* PORT0 PIN1 (coords: 32) is configured as FC0_TXD_SCL_MISO */ - + /* Enable RX interrupt. */ USART_EnableInterrupts(uart->UART, kUSART_RxLevelInterruptEnable | kUSART_RxErrorInterruptEnable); EnableIRQ(uart->UART_IRQn); - - CLOCK_DisableClock(kCLOCK_Iocon); - + + CLOCK_DisableClock(kCLOCK_Iocon); + /* register UART0 device */ rt_hw_serial_register(&serial0, "uart0", RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM, uart); -#endif - +#endif + return 0; } INIT_BOARD_EXPORT(rt_hw_uart_init); |