a3p060 燒寫問題

wangkj

我吧vjtag,vpump直接接到3.3V了。
出現(xiàn)這個錯誤：
programmer 'FPBBALTLPT1' : Scan Chain FAILED.

是不是vjtag必須接上拉電阻？
vpump必須用電容?

如果需要，要多大的？


programmer 'FPBBALTLPT1' : Scan Chain...
Error: programmer 'FPBBALTLPT1' : Signal Integrity Failure
      Integrity Check Pattern Not Found.
      Integrity Check Pattern :
      550FAAF000FF0000FFFF
      IrScan Error.
      TDO stuck at 0
      Chain Analysis Failed.
Error: programmer 'FPBBALTLPT1' : Data Bit length : 8272
Error: programmer 'FPBBALTLPT1' : Compare Data  :0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Error: programmer 'FPBBALTLPT1' : Scan Chain FAILED.
Error: Failed to run Action.

wangkj

貌似我找不到 fpga/cpld應(yīng)該劃分到那個類別，5個主題好像都不太合適。

wangkj

網(wǎng)上找到的答案是vjtag 200歐電阻上拉，vpump加電容。

wangkj

這是原理圖。

wangkj

可能是vjtag的問題，飛線比較難辦。
實驗室的門開不開了，只好回家用自己的設(shè)備了。
以前是能開開的，唉，郁悶。

wangkj

還得給自己的電腦安裝軟件。

wangkj

另外的說法就是去掉r4,r5電阻。

wangkj

拆掉那兩個電阻，vjtag 加200歐姆電阻，故障依舊。
看來得找個usb的編程器了。
俺自己想辦法。不知道誰有賣的。

wangkj

用usb的燒寫器好了。

hushucon

回復(fù)1樓wangkj：

hushucon

問題解決了嗎，我遇到了和你一樣的問題，能知道下嗎？ 回復(fù)1樓wangkj：