i.MX ProcessorsのトピックRe: Serial port utilization

Serial port utilization

mbp — Tue, 22 Jun 2010 13:51:08 GMT

Wondering outloud if anybody has had any success in accessing & utilizing the UARTs/serial ports on the EVK when running Android. I have been working on porting the Android serialPort API (http://code.google.com/p/android-serialport-api/) but running into permissions issues. I am using the prebuild library and not rebuilding using NDK.

If anyone has success with serial port access - I would appreciate some pointers or a code snippet/sample.

Thanks all!

Re: Serial port utilization

mbp — Thu, 15 Jul 2010 17:45:29 GMT

Ricardo - thanks for your input. To confirm, UART1==ttymxc0, UART2==ttymxc1 and finally UART3==mxc2. With Eric's assistance we have been able to perform test communication via UART1 - (console port) need to use UART2 for actual data transfer - on the EVK adapter board MCIMX51EXP) due to console use of UART1. I see UART2 routed to a secondary DB9 connector (MCIMX51EXP). Cannot get any activity on this UART into/out of the EVK. Communication code in Java within Android OS - (byte-array) transfers initiated by fixed interval timer. Appreciate any serial I/O code you're willing to share.

Re: Serial port utilization

satank — Thu, 02 Dec 2010 00:36:21 GMT

I'd be interested in a LTIB patch for UART2 ( DB9 on EXP board ).

Re: Serial port utilization

mbp — Tue, 07 Dec 2010 17:32:14 GMT

In case it's needed, I second Rick's statement of Interest!