emwin 刷2d图形会影响串口dma接收数据

[944706426]

mcu：rt1052 s
dk :2.3.1 
emwin :v5.50

项目中用到rt1052的串口dma环形缓冲区接收数据（参考sdk例子edma_rb_transfer），周期大概100ms，lcd跑emwin，实验发现如果单独运行是没有问题，但是两者一起运行，发现emwin刷新2d图形时（周期300ms），运行一段时间串口dma 有空闲中断产生，但接收的字节变为0，一直找不到原因，请教一下大家？

[gusarambula]

Hello,

I see that you have posted this same question with some additional information on the following thread:

https://community.nxp.com/t5/i-MX-RT/Will-EMWIN-affect-rt1052-serial-port-DMA-reception/td-p/1269990

I’m adding this link as reference. Please follow up on that thread.

Regards,
Gustavo