Re: Reg : How to use custom baud rate such as 125000 for ioc running on Linux

[Mrinal Bera via Tech-talk <tech-talk at aps.anl.gov>]

Hi Abhishek, From the Linux Serial Console documentation (https: //docs. kernel. org/admin-guide/serial-console. html#: ~: text=The%20maximum%20baudrate%20is%20115200,on%20the%20kernel%20command%20line. &text=defines%20that%20opening%20%2Fdev%2Fconsole,or%20COM2)%20at%209600%20baud. )

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Hi Abhishek,

From the Linux Serial Console documentation (https://docs.kernel.org/admin-guide/serial-console.html#:~:text=The%20maximum%20baudrate%20is%20115200,on%20the%20kernel%20command%20line.&text=defines%20that%20opening%20%2Fdev%2Fconsole,or%20COM2)%20at%209600%20baud.) it seems like the maximum baud rate supported is 115200.

Best,

Mrinal

On Feb 28, 2024, at 4:42 AM, Abhishek Mazumdar - STFC UKRI via Tech-talk <tech-talk at aps.anl.gov> wrote:

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Hello,

I am running an ioc for a device in linux which supports 125000 baud rate using UART communication.

The vendor of the device has provided python libraries through which I am able to communicate with the device without any issues.

The vendor's python libraries uses python serial package to communicate with the port /dev/ttyUSB1 (for example) using baud rate 125000.

But when I am using the baud rate 125000 in my ioc's st.cmd , I am not able to communicate with the device.

How to communicate with the device using 125000 baudrate using EPICs IOC ?

Thanks,

Abhishek Mazumdar