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I2C 不會動...
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高級會員
 
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小弟我是參照 去上課的SAMPLE Code,來使用 C18 提供的 I2C Lib,
不知道哪邊有錯,我的 I2C 用示波器量都沒有動作. 我使用的 Chip 是 18f65j50 使用 i2c 只是做簡單的 讀寫 EEPROM. SSP2BUF=0; OpenI2C2(MASTER,SLEW_ON); SSP2ADD= 59; //24M/4 / 59+1 = 100k //initial 完後  我用以下方式去試著存 0x77 到 EEPROM 0x04 的位址 EEByteWrite2(0xA0,0x04,0x77); EEAckPolling2(0xA0); unsigned char ReadTemp; ReadTemp = EERandomRead2(0xA0,0x04); 但是讀回來並不是0x77. 使用示波器量,連 clock 都沒看到. 是否是我沒注意到哪些地方呢?
發表於: 2009/12/2 13:49
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