CC2540 用uart1 alt1（p0.4,p0.5）模式下，能收到数据，但是发不出数据？

CC2540的HAL_UART_DMA=1，2只能分别用在uart0 alt1，和uart1 alt2上？

uint16 HalUARTWrite(uint8 port, uint8 *buf, uint16 len)
{
#if (HAL_UART_DMA == 1)
if (port == HAL_UART_PORT_0) return HalUARTWriteDMA(buf, len);
#endif
#if (HAL_UART_DMA == 2)
if (port == HAL_UART_PORT_1) return HalUARTWriteDMA(buf, len);
#endif
#if (HAL_UART_ISR == 1)
if (port == HAL_UART_PORT_0) return HalUARTWriteISR(buf, len);
#endif
#if (HAL_UART_ISR == 2)
if (port == HAL_UART_PORT_1) return HalUARTWriteISR(buf, len);
#endif
#if (HAL_UART_SPI == 1)
if (port == HAL_UART_PORT_0) return HalUARTWriteSPI(buf, len);
#endif
#if (HAL_UART_SPI == 2)
if (port == HAL_UART_PORT_1) return HalUARTWriteSPI(buf, len);
#endif

user4198369：

找到原因，是低功耗的问题

Chen Qian：

回复 user4198369:

请问您最后是怎么设置的？