Warning
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Error: could not reset the device
Please ensure that...
1. The power supply is connected
2. All connections are correct
3. A program is not already running
4. The correct value for the crystal is selected
5. PSEN is inserted
See downloading instructions under 'Help--> Index'
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确定
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crystal 用的是外部的 为5。55MHZ正常 5. PSEN is inserted 1. The power supply is connected也正常啊
请教各位老大 ,可能是怎么问题呢