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修复单向列表移除节点时存在的安全风险. #11186

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修复单向列表移除节点时存在的安全风险. #11186

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7f6749a
修复n947开发板arduino接口串口无法使用的问题.
Vandoul Feb 7, 2026
49872b7
修复串口再配置后无法收到数据的问题.
Vandoul Feb 7, 2026
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9 changes: 8 additions & 1 deletion bsp/nxp/mcx/mcxn/Libraries/drivers/drv_uart.c
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,7 @@ static rt_err_t mcx_configure(struct rt_serial_device *serial, struct serial_con
{
struct mcx_uart *uart; /* Serial port hardware structure, calling the structure initialized above */
lpuart_config_t config;/* It contains basic configuration parameters of the serial port, such as baud rate, data bit, stop bit, and parity check */
rt_uint32_t irq_regval;

RT_ASSERT(serial != RT_NULL); /* assert */
RT_ASSERT(cfg != RT_NULL);
Expand All @@ -159,8 +160,14 @@ static rt_err_t mcx_configure(struct rt_serial_device *serial, struct serial_con

config.enableTx = true;
config.enableRx = true;


irq_regval = LPUART_GetEnabledInterrupts(uart->uart_base);
LPUART_Init(uart->uart_base, &config, CLOCK_GetFreq(uart->clock_src));
if(irq_regval & kLPUART_RxDataRegFullInterruptEnable)
{
LPUART_EnableInterrupts(uart->uart_base, kLPUART_RxDataRegFullInterruptEnable);
EnableIRQ(uart->irqn);
}

return RT_EOK;
}
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2 changes: 1 addition & 1 deletion bsp/nxp/mcx/mcxn/frdm-mcxn947/board/SConscript
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Expand Up @@ -24,7 +24,7 @@ if GetDepend(['PKG_USING_CJSON']) and GetDepend(['PKG_USING_WEBCLIENT']):


CPPPATH = [cwd, cwd + '/MCUX_Config/board']
CPPDEFINES = ['DEBUG', 'CPU_MCXN947VDF_cm33_core0']
CPPDEFINES = ['DEBUG', 'CPU_MCXN947VDF_cm33_core0', 'LPFLEXCOMM_INIT_NOT_USED_IN_DRIVER=1']

group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES=CPPDEFINES)

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51 changes: 51 additions & 0 deletions bsp/nxp/mcx/mcxn/frdm-mcxn947/board/board.c
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Expand Up @@ -34,6 +34,57 @@ void SysTick_Handler(void)
rt_interrupt_leave();
}

/**
* This function will initial the FlexComm mode.
* +--------+----------------+--------+--------+--------------+
* | Signal | LPSPI | LPUART | LPI2C | LPUART+LPI2C |
* +--------+----------------+--------+--------+--------------+
* | FC_P0 | SDO/DATA[0] | RXD | SDA | SDA |
* | FC_P1 | SCK | TXD | SCL | SCL |
* | FC_P2 | SDI/DATA[1] | RTS_b | SCLS | TXD |
* | FC_P3 | PCS[0] | CTS_b | SDAS | RXD |
* | FC_P4 | PCS[3]/DATA[3] | DSR_b | HREQ_b | CTS_b |
* | FC_P5 | PCS[2]/DATA[2] | DTR_b | — | RTS_b |
* | FC_P6 | PCS[1]/HREQ | DCD_b | — | HREQ_b |
* +--------+----------------+--------+--------+--------------+
*/
void rt_hw_flexcomm_mode_init(void)
{
#ifdef BSP_USING_UART2
LP_FLEXCOMM_Init(2, LP_FLEXCOMM_PERIPH_LPI2CAndLPUART); /* FLEXCOMM2 used for LPI2C and LPUART */
#endif
#ifdef BSP_USING_UART4
LP_FLEXCOMM_Init(4, LP_FLEXCOMM_PERIPH_LPUART); /* FLEXCOMM4 used for LPUART */
#endif
#ifdef BSP_USING_UART5
LP_FLEXCOMM_Init(5, LP_FLEXCOMM_PERIPH_LPUART); /* FLEXCOMM5 used for LPUART */
#endif
#ifdef BSP_USING_UART6
LP_FLEXCOMM_Init(6, LP_FLEXCOMM_PERIPH_LPUART); /* FLEXCOMM6 used for LPUART */
#endif
#ifdef BSP_USING_SPI1
LP_FLEXCOMM_Init(2, LP_FLEXCOMM_PERIPH_LPSPI); /* FLEXCOMM2 used for LPI2C and LPUART */
#endif
#ifdef BSP_USING_SPI3
LP_FLEXCOMM_Init(3, LP_FLEXCOMM_PERIPH_LPSPI); /* FLEXCOMM3 used for LPSPI */
#endif
#ifdef BSP_USING_SPI6
LP_FLEXCOMM_Init(6, LP_FLEXCOMM_PERIPH_LPSPI); /* FLEXCOMM6 used for LPSPI */
#endif
#ifdef BSP_USING_SPI7
LP_FLEXCOMM_Init(7, LP_FLEXCOMM_PERIPH_LPSPI); /* FLEXCOMM7 used for LPSPI */
#endif
#ifdef BSP_USING_I2C0
LP_FLEXCOMM_Init(0, LP_FLEXCOMM_PERIPH_LPI2C); /* FLEXCOMM0 used for LPI2C */
#endif
#ifdef BSP_USING_I2C1
LP_FLEXCOMM_Init(1, LP_FLEXCOMM_PERIPH_LPI2C); /* FLEXCOMM1 used for LPI2C */
#endif
#ifdef BSP_USING_I2C2
LP_FLEXCOMM_Init(2, LP_FLEXCOMM_PERIPH_LPI2C); /* FLEXCOMM2 used for LPI2C */
#endif
}

/**
* This function will initial board.
*/
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