无法在UART上收到

谢谢回复。我们已经能够基于Sample128的自定义档案，以正常工作，但您提供的教程似乎对进一步自定义有用。

截至目前，我们的主要问题是让UART阅读工作。

出于某种原因，我无法让DSP示例正确执行。我相信它与睡眠模式和调试有关，因为它在Arch_System模块中的Sleep_Mode检查期间永久地坐在循环中。

除了额外的uarttoble, bletouart环buffer functionality, it appears that our UART is configured similarly to the DSPS example. The main difference is the initialization of the application-level UART module calling uart_read with a callback function. According to UM-B-004, I should be able to call a uart_read without a callback. I attempted the same thing with a receive callback and calling uart_read upon init but I still have no luck. There is something I'm missing here regarding the UART Handler - shouldn't I be receiving an interrupt handed by UART Handler upon the first byte stored into the recv FIFO (UART_IIR_FCR_REG initialized to 7)? Obviously without the UART Handler triggering, I won't see the callback either.

除了我可以检查的外围示例和生产工具之外还有另一个例子吗？或任何其他额外洞察力。我很欣赏帮助。

我实际上已经尝试过这个my last reply but unfortunately again without any luck - I get a hard fault and halts at the hard fault debugger software breakpoint. The call stack indicates the fault occurs during the uart_sps_timeout_data_avail ISR (interrupt occurring during rf init). Further debugging pinpoints the fault occurs when the receive buffer value is set to the read data.

我将应用程序更改为使用UART2外设，并且仍未收到中断（UART2_Handler）。

As a sanity check, I created a new folder with a fresh copy of the SDK v3.0.8.0 and I opened up the template project. I then performed the same modifications to da14580_config.h and periph_setup.c, added uart2_read calls with a UART receive callback, am still not seeing a UART2_Handler interrupt when transmitting to the DA14580. Something that may be of note is that I do see an UART2 RX interrupt occurring on startup with an idd of RECEIVED_AVAILABLE. The uart2_rec_data_avail_isr call to uart2_data_rdy_getf returns TRUE once and therefore the first uart2_read call will perform a callback if a read size of 1 byte is specified.