28377D的外部E2PROM是通过I2C还是SPI实现的,TI的推荐E2PROM芯片及方案有没的?
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28377D的外部E2PROM是通过I2C还是SPI实现的,TI的推荐E2PROM芯片及方案有没的?
例程里有看到用I2C的,只是不理解为什么没有SPI读写E2PROM的,用I2C和SPI两者有什么不同考虑的地方么?
是的,外扩eeprom时,ti的例程是通过i2c实现的,出发点的话要看两者传输数据不同处了,另外i2c数据双向传输,隔离随复杂些,cpu端口占用少。