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TCAN4550-Q1: tcan4550,读取地址0-c都比较正常,数据也正确实,读取 模式寄存器0x800总是返回0,像是访问失败一样。

Part Number: TCAN4550-Q1
Other Parts Discussed in Thread: TCAN4550,

通过 spi访问 tcan4550。

上电的时候,直接初始化spi,然后进行读操作。

地址0到地址c的内容读出来比较正常,与官网数据手机一致

0x4e414354

0x30353534

0x00110201

但量读取0x800地址时,总是返回0