115200 8N1, no flow control, connected to imx uart 1. (only TX and RX lines are connected in HW, so HW flow control is not possible. Any ideas ? Thanks Stas Labels: i.MX6_All i.MX6DL Linux Yocto Project Tags: uart uart_imx uart_FIFO_overrun.txt.zip 0 Kudos Reply All...
if (U1STAbits.OERR) // If there are UART OverRun errors,U1STAbits.OERR = 0; // ...
imx-uart 21f0000.serial: Rx FIFO overrun ... Once I got the error I cannot receive data anymore,unless kill the application and open it again. I used the Oscilloscope to measure the UART port (near the imx6 chip )waveform there is no problem , I got the signal and the signal ...
* USART_IT_IDLE - Idle line detection interrupt. * USART_IT_ORE_RX - OverRun Error interrupt if the RXNEIE bit is set. * USART_IT_ORE_ER - OverRun Error interrupt if the EIE bit is set. * USART_IT_NE - Noise Error interrupt. * USART_IT_FE - Framing Error interrupt. * USART_I...
Not sure if I see the same as Brad but I agree with his suggestions. I think the IIR indicates a pending receiver line status interrupt. The error is receiver overrun. Apparently from not servicing the Rx interrupt. Yep, your'e spot on. INTID=3 (receiver line status). ...
请教下imx6ul 串口 overrun报错 打印信息如下 imx-uart 21f0000.serial: Rx FIFO overrun ...
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Hi, I am using i.MX6ulcore processor,use uart2 in 230400Baud,sometimes get errorimx-uart 21e8000.serial: Rx FIFO overrun. followingdmesg,I found this error msg followedBus freq set to 24000000 msg。So iguess when the data transmission in UART ,this time the Bus freq reduced...
If the data rate is high it may be that the code is not always fast enough to react to the initial end of DMA interrupt and set up before the start of the next message arrives and is lost (overrun). Free running DMA to a large circular buffer (no firmware interve...