MKV31F512VLH12使用UART2

[shuangda228]

在MKV31F512VLH12的SIM_SOPT5中，只有UART0/UART1的TXSRC/RXSRC，而UART2的SOPT没有找到，请问如何处理UART2的SOPT。

下面代码是对UART0/UART1有效

/*! @name SOPT5 - System Options Register 5 */
/*! @{ */
#define SIM_SOPT5_UART0TXSRC_MASK (0x3U)
#define SIM_SOPT5_UART0TXSRC_SHIFT (0U)
/*! UART0TXSRC - UART 0 transmit data source select
* 0b00..UART0_TX pin
* 0b01..UART0_TX pin modulated with FTM1 channel 0 output
* 0b10..UART0_TX pin modulated with FTM2 channel 0 output
* 0b11..Reserved
*/
#define SIM_SOPT5_UART0TXSRC(x) (((uint32_t)(((uint32_t)(x)) << SIM_SOPT5_UART0TXSRC_SHIFT)) & SIM_SOPT5_UART0TXSRC_MASK)
#define SIM_SOPT5_UART0RXSRC_MASK (0xCU)
#define SIM_SOPT5_UART0RXSRC_SHIFT (2U)
/*! UART0RXSRC - UART 0 receive data source select
* 0b00..UART0_RX pin
* 0b01..CMP0
* 0b10..CMP1
* 0b11..Reserved
*/
#define SIM_SOPT5_UART0RXSRC(x) (((uint32_t)(((uint32_t)(x)) << SIM_SOPT5_UART0RXSRC_SHIFT)) & SIM_SOPT5_UART0RXSRC_MASK)
#define SIM_SOPT5_UART1TXSRC_MASK (0x30U)
#define SIM_SOPT5_UART1TXSRC_SHIFT (4U)
/*! UART1TXSRC - UART 1 transmit data source select
* 0b00..UART1_TX pin
* 0b01..UART1_TX pin modulated with FTM1 channel 0 output
* 0b10..UART1_TX pin modulated with FTM2 channel 0 output
* 0b11..Reserved
*/
#define SIM_SOPT5_UART1TXSRC(x) (((uint32_t)(((uint32_t)(x)) << SIM_SOPT5_UART1TXSRC_SHIFT)) & SIM_SOPT5_UART1TXSRC_MASK)
#define SIM_SOPT5_UART1RXSRC_MASK (0xC0U)
#define SIM_SOPT5_UART1RXSRC_SHIFT (6U)
/*! UART1RXSRC - UART 1 receive data source select
* 0b00..UART1_RX pin
* 0b01..CMP0
* 0b10..CMP1
* 0b11..Reserved
*/
#define SIM_SOPT5_UART1RXSRC(x) (((uint32_t)(((uint32_t)(x)) << SIM_SOPT5_UART1RXSRC_SHIFT)) & SIM_SOPT5_UART1RXSRC_MASK)
/*! @} */

感谢。

[Celeste_Liu · Accepted solution]

Hello @shuangda228 ,

Thanks for your post. Please refer to the reference manual of the MKV31F512VLH12.

The TXSRC/RXSRC of UART0/UART1 is used to control the receive/transmit source selection/configuration.

For UART2, this kind of function is not supported, so there is no SOPT for UART2. This is normal.

Hope it can help you.

BRs,

Celeste

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