UCC UART not working in normal mode, working fine in loopback

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UCC UART not working in normal mode, working fine in loopback

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jayanthkumarmj
Contributor I

Hello,

     I am working with mpc8360, I m using UCC as USART and UART, uart is working in loopback mode(GUMR_L[DIAG] = 0x01).

     if I made normal mode i.e(GUMR_L[DIAG] = 0x00). then I will not get the status in transmitter buffer i.e Ready bit in buffer will always high(1);

     same code if I made loopback its working.

     kindly give some guidance.

thank you

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alexander_yakov
NXP TechSupport
NXP TechSupport

Please check if you have CTS input either permamently asserted, or configired as GPIO (in this case CTS will be permanently asserted internally).

Please look QE Reference Manual, Section 6.5.1 for more details.

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pareshchaudhary
Contributor I

Hi ,

I am trying  to run UCC UART on MPC8309 evm. I facing problem in receive data. I can successfully Transmit data from evm but i can't receive data into evm.

Could you please guide me where i need to change for receive ?

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