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通常双芯片的方案用I2C端口来烧录固件会稍微慢一点。如果4710LC EVM板子烧录固件时,没有用SPI总线,而是用I2C烧录,理论算出来的时间为7.59分(基于100K的I2C)。
5696496x8÷100000÷60=7.595
如果对烧录速度有要求的话,建议直接用SPI烧录器通过连接器对板上的Flash升级。