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TCAN4550 通信出现SPI ERROR

Other Parts Discussed in Thread: TCAN4550

目前调试的TCAN4550系统在常温下可以正常工作,当系统温度升高之后会出现SPI ERROR,出现错误时大约在70℃。之后分别升高主控芯片和TCAN4550芯片的温度,当主控芯片温度升温至125℃,未出现SPI ERROR,但单独升高TCAN4550的温度时,会出现SPI ERROR。请问有什么原因可能造成此现象。