Hardware flow control for AM335X

yousuf uddin

Prodigy 50 points

Other Parts Discussed in Thread: AM3356

We need to have UART hardware flow control enabled in our application and we are using AM3356 processor.

Is driver code avilable for UART hardware flow control as part of AM3356 PSP?

over 13 years ago

0 Gururaja Hebbar over 13 years ago

TI__Intellectual 2725 points

Hi,

Linux OMAP UART driver should support it provided proper pin-mux is done.

However, I have not tested it on UART0, since UART0 flow control pins (rtsn, ctsn) is not routed on Evaluation module.

Kindly test it at your end and reply if you face any issues.

Regards

Gururaja

0 yousuf uddin over 13 years ago in reply to Gururaja Hebbar

Prodigy 50 points

Hi,

I am writing a test application to test hardware flowcontrol , and configured pin mux for the respective ports then also is not working . More over AM335x-PSP_04.06.00.03_Release_Notes indicated that the hardware flow control for UART is implemented but not working (SDOCM00085586). So please let me know whether does it support or not .

Regards,

yousuf.

0 Keldy over 13 years ago in reply to yousuf uddin

Expert 1835 points

Hi,

The PSP04.06.00.07 release notes indicated that the hardware flow control not support because of miss-configuration of CPLD. does it mean the hardware flow control is actually supported by this PSP release?

Thanks and Regards

Keldy

0 David Siegers over 12 years ago in reply to Keldy

Intellectual 390 points

Can anyone from TI issue a definitive statement regarding UART h/w flow control on the am335x?

I have found it to not work on a custom designed board.

Thank you,

Dave

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Hardware flow control for AM335X