ISO3082: ISO3082 tx error

Wade Zhang

Part Number: ISO3082

Hello all，

When I used ISO2083 to communicate with my computer via serial port to USB,Part of the data received by the computer was wrong.9 bytes of frame data, the first 4 are correct, and the last 5 are uncertain.

over 5 years ago

0 Dan Kisling over 5 years ago

TI__Expert 6195 points

Hi Wade,

Two things would really help me debug this issue:

Can you provide a schematic?
Can you provide scope shots of A, B, D, and R?

As well as those two items, does this happen every time or is the error sporadic?

Thanks for contacting us on E2E!

Best regards,

Dan

0 Wade Zhang over 5 years ago in reply to Dan Kisling

Intellectual 725 points

Hello,

This happens every time

0 Dan Kisling over 5 years ago in reply to Wade Zhang

TI__Expert 6195 points

Hi Wade,

Thanks for providing a schematic. At first glance I do not see anything wrong in the schematic.

Do you have any scope shots of the data?

Have you tried any other RS-485 transceiver in the same setup and seen a different result?

Best regards,

Dan

0 Dan Kisling over 5 years ago in reply to Dan Kisling

TI__Expert 6195 points

Hi Wade,
I haven't heard from you in a few days. Were you able to figure out what was causing the issue?
Best regards,
Dan

0 Wade Zhang over 5 years ago in reply to Dan Kisling

Intellectual 725 points

Hello Dan，

When sending 0 continuously, the PC side receives an error. The phenomenon is the same as ADM2483 .

0 Dan Kisling over 5 years ago in reply to Wade Zhang

TI__Expert 6195 points

Hi Wade,
There may be an issue with the software or the serial port to USB hardware.
Best regards,
Dan

0 Wade Zhang over 5 years ago in reply to Dan Kisling

Intellectual 725 points

Thanks

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ISO3082: ISO3082 tx error