TDA4VM: TDA4VM UART0RX PULL UP

Yao Zhang

Part Number: TDA4VM

Tool/software:

hi expert

SDK8.2 QNX+RTOX

We set UART0-RX（AB2） to pull-up and found through measurement that the voltage is still 0

Read padconfig121 register, the result is 0x00050007

Please help check if the settings are correct

+1 Neehar Sawant 3 months ago

Hi,

Can you test after setting the Padconfig register to 0x00070007?

Since you want to set to Pull-up, you will also want to enable bit 17. Let me know your results.

Thanks,

Neehar

0 Yao Zhang 3 months ago in reply to Neehar Sawant

The level conversion chip is preventing my UART from being pulled high

0 Neehar Sawant 3 months ago in reply to Yao Zhang

Hi,

You are still having trouble with the Padconfig register set to 0x00070007?

Thanks,

Neehar

0 Yao Zhang 3 months ago in reply to Neehar Sawant

no you can close the case

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