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有關W401 ex 6-2c
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新會員
 
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版主 你好:<br />有關W401 ex 6-2c <br />void EEPROM_ACK(unsigned char ctrl)<br />{<br /> int i;<br /> IdleI2C(); // ensure module is idle<br /> StartI2C(); // Start condition<br /> I2C_Done(); // Wait Start condition completed<br /> WriteI2C(ctrl); // Write Control to EEPROM (WRITE)<br /> I2C_Done(); // Clear SSPIF flag<br /> while (SSPCON2bits.ACKSTAT) // <br /> {<br /> for (i=0;i<100;i++); // Delay for next Repet-Start<br /> RestartI2C(); // initiate Repet-Start condition<br /> I2C_Done(); // Wait Repet-Start<br /> WriteI2C(ctrl); // Write Control to EEPROM (WRITE)<br /> }<br /> I2C_Done(); // Clear SSPIF flag <br /> StopI2C(); // send STOP condition<br /> I2C_Done(); // wait until stop condition is over <br />}<br /><br />執行時一直在第三I2C_Done();跑回圈<br />請問第二I2C_Done();已將SSPIF clear<br />如果沒進while<br />第三I2C_Done();將一直等待SSPIF = 1<br /> 這是BUG 嗎?
發表於: 2008/6/8 21:23
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