https://community.nxp.com/t5/S32K/LIN-response-error-for-2-byte-to-CANOe-timeout-response-error/m-p/1618323#M21493 <P>Hello everyone,</P><P>I have been trying to send two bytes of response with 3rd byte as a checksum from my microcontroller(S9KEAZN64AMLC) to the CanOe tool. it is showing a Timeout error for only 2 bytes of the response for every consecutive frame ( if send consecutively one is received and one gives an error it continuously), the same code same system, and the same configuration running flawlessly for 4 bytes, and 8 bytes also.</P><P>Configuration is Baud rate is configured for 19200</P><P>every transmission and reception done in MCU is from ISR. using&nbsp; Read data register full Interrupt for reception (request )Interrupt&nbsp; and Transmission data register empty for Transmission (response)</P><P>below is a screenshot attached for the CAN tool receiving data.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Sourdev_0-1679305226543.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/215339iB17529DCED987DD7/image-size/medium?v=v2&amp;px=400" role="button" title="Sourdev_0-1679305226543.png" alt="Sourdev_0-1679305226543.png" /></span></P><P>below is the attached LIN bus signal from the logic analyzer.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Sourdev_1-1679305627280.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/215340iB31401E24944B5FC/image-size/medium?v=v2&amp;px=400" role="button" title="Sourdev_1-1679305627280.png" alt="Sourdev_1-1679305627280.png" /></span></P><P>&nbsp;</P><P>We tried to fix this issue by increasing jitter in LDF, and instead of configuring Transmission data register empty configuring for Transmission complete Interrrupt still same issue .</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 20 Mar 2023 09:54:16 GMT Sourdev 2023-03-20T09:54:16Z https://community.nxp.com/t5/S32K/LIN-response-error-for-2-byte-to-CANOe-timeout-response-error/m-p/1618323#M21493 <P>Hello everyone,</P><P>I have been trying to send two bytes of response with 3rd byte as a checksum from my microcontroller(S9KEAZN64AMLC) to the CanOe tool. it is showing a Timeout error for only 2 bytes of the response for every consecutive frame ( if send consecutively one is received and one gives an error it continuously), the same code same system, and the same configuration running flawlessly for 4 bytes, and 8 bytes also.</P><P>Configuration is Baud rate is configured for 19200</P><P>every transmission and reception done in MCU is from ISR. using&nbsp; Read data register full Interrupt for reception (request )Interrupt&nbsp; and Transmission data register empty for Transmission (response)</P><P>below is a screenshot attached for the CAN tool receiving data.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Sourdev_0-1679305226543.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/215339iB17529DCED987DD7/image-size/medium?v=v2&amp;px=400" role="button" title="Sourdev_0-1679305226543.png" alt="Sourdev_0-1679305226543.png" /></span></P><P>below is the attached LIN bus signal from the logic analyzer.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Sourdev_1-1679305627280.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/215340iB31401E24944B5FC/image-size/medium?v=v2&amp;px=400" role="button" title="Sourdev_1-1679305627280.png" alt="Sourdev_1-1679305627280.png" /></span></P><P>&nbsp;</P><P>We tried to fix this issue by increasing jitter in LDF, and instead of configuring Transmission data register empty configuring for Transmission complete Interrrupt still same issue .</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 20 Mar 2023 09:54:16 GMT https://community.nxp.com/t5/S32K/LIN-response-error-for-2-byte-to-CANOe-timeout-response-error/m-p/1618323#M21493 Sourdev 2023-03-20T09:54:16Z