i.MX8 UART baudrate mismatch

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

i.MX8 UART baudrate mismatch

530件の閲覧回数
Lincoln_Dessen
Contributor II

Dear all,

I have this strange baudrate issue in the product using i.MX8QM with Android 9.

ttyLP3 (UART3) default baudrate is 9600.

I run stty command setting it to 19200.

/ # stty -F /dev/ttyLP3
speed 19200 baud; line = 28;

However, the baudrate on uart bus measured from oscilloscope is only 5760 (please check the attachment below).

 

0 件の賞賛
返信
1 返信

482件の閲覧回数
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi @Lincoln_Dessen 

Please try to test other baudrate using oscilloscope

0 件の賞賛
返信