SN65HVD230: SN65HVD230 H-L line is continuously high and when connected to the MCU, it gives mcu bit timing error.

Sergen Piri

Part Number: SN65HVD230

I bought 2 SN65HVD230 modules 1 week ago, but when I connect them to the MCU, a bit timing error occurs in the MCU. Do you think it might be because my SN65HVD230 module is a clone IC?

The code written on SN65HVD230: VP230 CTCVG4

over 2 years ago

0 Eric Hackett over 2 years ago

TI__Guru 74962 points

Sergen,

Thanks for bringing this to E2E, but we'll need more information. When the bit timing error occurs, what are you trying to do? And is it possible to share a schematic and/or waveforms from an oscilloscope when you're using these modules?

Regards,

Eric Hackett

0 Sergen Piri over 2 years ago in reply to Eric Hackett

Prodigy 10 points

Sure,

Can Tx

H and L remain constant at the same voltage

0 Eric Hackett over 2 years ago in reply to Sergen Piri

TI__Guru 74962 points

Sergen,

What is the state of pin 8? It needs to be pulled down to GND for the device to be in the correct mode for communication.

Regards,

Eric Hackett

Interface

Interface forum

SN65HVD230: SN65HVD230 H-L line is continuously high and when connected to the MCU, it gives mcu bit timing error.