Find More Posts by smallpond. RTS seems to be too late. Having a problem logging in? This thread discusses non standard baud rates by adjusting the UART clock. Please visit this page to clear all LQ-related cookies.

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Board index All times are UTC. I’ve got it working now. RTS seems to be too late. We use kernel 3.

CONFIG_SERIAL_AMBA_PL011: ARM AMBA PL011 serial port support

Any help would be very much appreciated! View LQ Wiki Contributions. This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant.

I read that the pl uart can possibly do 2 stop bits, but it appears that maybe that isn’t readily available on the GPIO pins without some serious hacking? Having a problem logging in? The time now is Join our community today! Linux Power User Bundle. All times are GMT Could you guide me to the correct lines in the driver code to add delay? In other words, RTS signal comes too late. It does not appear to be a problem if the stop bits received are at the wrong level.


We developed a customized hardware board based on an ARM processor.

Have you turned on crtscts? I’ve amha read that by modifying one of the system clocks, the baud rate can be changed to something non standard. This thread discusses non standard baud rates by adjusting the UART clock. One UART is used to communicate with a bluetooth module. Flow control none is not working as expected after we change flow control software.

Find More Posts by Michael Select all [ 0. Is there any chance to add a short delay to the driver e.

drivers/tty/serial/amba-plc – kernel/bcm – Git at Google

If you’d like to contribute content, let us know. I can always fall back on the arduino “software serial” interface method, but it would be nice to be able to interface directly through the pi with a simple C program or perl script. FYI, we use libbt to connect to the Broadcom-based bluetooth device. The interrupt bit appears after the 8 bits of data, but before the stop bit. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.


BB code is On. Separating amba-pl device driver from linux kernel. You are currently viewing LQ as a guest. Dear all, I hope you can help me. Now if I cat the device file, I get the expected output.

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