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TCAN4550-Q1: CANFD 错误帧问题

Part Number: TCAN4550-Q1

1.4550使用过程中出现错误帧(500k+2M波特率),无法接收和发送报文,测量晶体频率40M,频偏<1ppm;

2.增大晶体外挂电容,频偏到达39.997M时,失效恢复;

3,什么因素导致的错误帧,如何解决,为什么频率负偏能够正常工作?