topic Re: how to use ttymxc0 as a comon uart in i.MX Processors

how to use ttymxc0 as a comon uart

raysonrayson — Sat, 16 May 2015 12:50:49 GMT

Hi All:

On mx6sdq, the ttymxc0 is used as a debug uart, I want to use it as a common uart connected by a printer. when during debugging time , I want it used as debug uart to output informations, others, I want to use it as a common uart , and do not output any debug information 。Can you give me some suggestions? thanks very much。

Re: how to use ttymxc0 as a comon uart

haoranwang — Tue, 19 May 2015 00:42:46 GMT

Hi Rayson,

I think you can remove the debug uart ttymxc0 port by changing BOARD_KERNEL_CMDLINE in BoardConfig.mk. Then try use it as normal uart.

Thanks.

BRs,

Haoran

Re: how to use ttymxc0 as a comon uart

raysonrayson — Wed, 20 May 2015 12:57:04 GMT

Hi Haoran:

Thanks for your reply , I use the linux version,not android ,and how to do , please give me some suggestions, thank you again.

Re: how to use ttymxc0 as a comon uart

haoranwang — Thu, 21 May 2015 02:46:44 GMT

Hi Rayson,

I think they are same. You can simply modify the "console" parameter in uboot "bootargs" or "mmcargs" to ttymxc1 or other. But I cannot make sure whether the kernel log will print to ttymxc1. But the ttymxc0 will be free to use.

Thanks.

BRs,

Haoran

Re: how to use ttymxc0 as a comon uart

raysonrayson — Sun, 24 May 2015 11:08:46 GMT

Hi Haoran:

I see, thank you very much。