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SPI範例問題(dsPIC30F4011)
#1
初級會員
初級會員


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我們使用(dsPIC30F4011 做為 MASTER 讀取 25LC160A 的範例)

EEPROM一直沒辦法執行查不出數據
假使用APP020是否需要在外接EEPROM
因我們是使用可自行跳PIN的板子(菁英班板子)

ADC有值但EEPROM一直讀不出來

且SCK使用示波器測量沒辦法量出頻率

設定值如下:

SPI1CON = 0x207c ;
SPI1STAT = 0xa000 ;

我們外接是使用(25LC1024)的EEPROM看過跟25LC160A腳位相同

另外將跳線由(PGC和PGD同一腳位SDO1/SDI1)跳到EEPROM的SO.SI
硬體就會當機不能使用

希望可以為我們解答一下,或者有更好的範例可以參考

發表於: 2009/9/25 20:28
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