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TMS320F28035-EP: CAN communication could not transmit data at high temperatures

Part Number: TMS320F28035-EP

Dear Expert

We use TMS320F28035PAGT ,it's could support -40℃ to 105℃ .

When we tested the temperature at 90 degrees Celsius in the incubator, we found that CAN communication could only receive data, but could not send data.When the temperature drops to 70 degrees Celsius, CAN communication returns to normal and F28035 CAN send data.

We tested about 30 of them, and we found almost the same failure.

Isolate CAN tranciver we use IS3050 Chipanalog-CA-IS3050EW.pdf