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I2C, Master mode write問題
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新會員
 
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在下,
不太懂如何使用PIC16F877的I2C介面, 將Master Device 的資料傳入Sleve Device. 條件如下~~ MCU: PIC16F877 (Master device) 另外使用一顆具有SDA/SCL的IC 當作Sleve Device OSC=16MHz 看了PIC16F877的Datasheet後, 有介紹其寫入程序, 但看不太懂?? 疑問1：需要寫Start bit 條件嗎? 還是只要單純將Start eanble bit(SEN) in SSPCON2致能即可呢? 疑問2：如何Address / data 1 / data 2由Master device 傳送到Sleve 呢? 是不是只需要將7bits的資料寫入SSPBUF後, I2C自然會將資料傳給Sleve device 呢? 以上是小弟的問題點?煩請各位大大, 不吝給予指導! 感謝 
發表於: 2007/6/15 21:49
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