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Valued Contributor III
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EP4CE75 programmer : verification failed for device number 1

1. I have checked the schematic and PCB. Both of them are right. 

2. This chip(flash and fpga) and schematic were used in another board without any problem. 

3. I used two usb-blasters and three PCs to program. failed with the same problem. 

4. I repalced the flash. 

5. signaltap works well. 

 

win7+quartus II 13.1+EP4CE75+M25P64 

use jtag mode to program(jic file) 

 

wrong infomation: 

209027 verification failed foe device number 1.
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