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bouffalolab / bl_iot_sdk

BL602/BL702 SDK. Any technical topic, please access the following link.
http://bbs.bouffalolab.com
Apache License 2.0
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bl_iot_sdk的串口驱动是否支持UART_URX_RTO_TIMER？ #86

Open FlyyingPiggy2020 opened 3 weeks ago

FlyyingPiggy2020 commented 3 weeks ago

阅读寄存器知道了有一个UART_URX_RTO_TIMER，串口接收超时的中断。

按我的理解应该是超出时间之后会产生一次中断。

然后阅读了一下串口驱动的代码，我好像没有看到它把中断的触发源提供给回调函数。（看这里）

对于我上层的应用来说，触发UART_URX_FIFO_INT和UART_URX_RTO_INT是分不清楚的。

或者说这个超时中断使用有别的姿势和用法？ 请问当初设计的时候，这个地方应该是如何使用的？

FlyyingPiggy2020 commented 3 weeks ago

我的想法是这样的， 可以给超时中断单独设置一个回调函数。

或者把bl_uart.c426行的BL_WR_REG(UARTx,UART_INT_CLEAR,0x10);这句话放到回调函数后面？

这样子的话，在外面也可以去用BL_IS_REG_BIT_SET(tmpVal,UART_URX_RTO_INT)查询中断是否触发了。

gamelaster commented 3 weeks ago

Check out also Bouffalo SDK, the UART drivers for BL702 should be almost the same for BL602, and they're newer, so take look on them.

FlyyingPiggy2020 commented 3 weeks ago

@gamelaster Will Bouffalo SDK have plans to support bl602/bl604 in the future?I noticed that LHAL currently supported bl602, but it hasn't been tested, and wireless functionality is not supported.

gamelaster commented 3 weeks ago

@FlyyingPiggy2020 I don't think so. The drivers should work, but I don't think we will see WiFi support in it.