hi,all:
why imx6 sabre smart devices board unable to send a signal when uart2 tx transport text for minicom?
cpu can not send uart2_tx signal to other side (pc end),but uart5、4、1 can.
Other:
android after boot uart3_tx can send signal to drive GPS's tx (uart2_tx、uart3_tx set of 3.3V pin,uart1_tx、uart4_tx、uart5_tx set of 1.8V pin).
Might be power problems?
please help me,thanks.
(中譯:為何imx6 sabre smart devices board的uart2_tx不能由minicom 送出文字到另一邊(PC端),也就是cpu的uart2_tx信號完全無信號發出.
但uart1、4、5卻是可以發出信號.
其他:
android 開機後,uart3_tx 卻能送信號去驅動GPS,不過是否是電壓問題呢?uart2_tx、uart3_tx 是設定在 3.3V pin,uart1_tx、uart4_tx、uart5_tx 是設定在1.8V pin)
)
Solved! Go to Solution.
Hi 陳 冠
I think you can check iomux settings for uart signals, also please
refer to atatched Porting Guide Chapter 3 Registering a New UART Driver.
Also one can try to decrease uart baudrate.
Best regards
igor
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Hi 陳 冠
I think you can check iomux settings for uart signals, also please
refer to atatched Porting Guide Chapter 3 Registering a New UART Driver.
Also one can try to decrease uart baudrate.
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
hi,igorpadykov:
thanks for your help.
I have solved this problem, because I use to repeat the GPIO PIN setting, making it impossible to send data.
thanks!!!