Find More Posts by smallpond. Now if I cat the device file, I get the expected output. RTS seems to be too late. Select all [ 0. Board index All times are UTC. Linux – Kernel This forum is for all discussion relating to the Linux kernel.
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Let me explain the background: Uzrt to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
Linux Power User Bundle. Separating amba-pl device driver from linux kernel. Registration is quick, simple and absolutely free. It does not appear to be a problem if the stop bits received are at the wrong level. FYI, we use libbt to connect to the Broadcom-based bluetooth device. Find More Posts by Michael Select all [ 0. RTS seems to be too late. The time now is I’ve already read that by modifying one of the system clocks, the baud rate can be changed to something non standard.
serial: amba-pl Add basic rs support – Patchwork
I’ve also been able to pass the 9th bit on the output data, but so far it has not appeared useful. One UART is used to communicate with a bluetooth module. By basically taking the software delay designed to skip the stop bit and multiplying by 2, I can ignore the 9th bit. Board index All times are UTC. Find More Posts by smallpond. View LQ Wiki Contributions. If you need to reset your password, click here.
Is there any chance to add a short delay to the driver e.
Having a problem logging in? Flow control none is not working as expected after we change flow control software. Could you guide me to the correct lines in the driver code to add delay? 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.
CONFIG_SERIAL_AMBA_PL011: ARM AMBA PL011 serial port support
Dear all, I hope you can help me. The interrupt bit appears after the 8 bits of data, but before the stop bit. The required hardware flow control is causing headaches. BB code is On. Qmba is the relevant part of libbt: By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.
Amb 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.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. By combining these techniques you can ignore up to two junk bits before the stop bit.
Any help would be very much appreciated! The oscilloscope reveals that RTS is set to active i.