a3p060 烧写问题

wangkj · 发表于 2009-6-25 14:32:09

我吧vjtag,vpump直接接到3.3V了。
出现这个错误：
programmer 'FPBBALTLPT1' : Scan Chain FAILED.

是不是vjtag必须接上拉电阻？
vpump必须用电容?

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 · 发表于 2009-6-25 14:32:40

貌似我找不到 fpga/cpld应该划分到那个类别，5个主题好像都不太合适。

wangkj · 发表于 2009-6-25 14:33:33

网上找到的答案是vjtag 200欧电阻上拉，vpump加电容。

wangkj · 发表于 2009-6-25 14:34:51

这是原理图。

wangkj · 发表于 2009-6-27 10:10:16

可能是vjtag的问题，飞线比较难办。
实验室的门开不开了，只好回家用自己的设备了。
以前是能开开的，唉，郁闷。

wangkj · 发表于 2009-6-27 10:10:40

还得给自己的电脑安装软件。

wangkj · 发表于 2009-6-27 12:03:06

另外的说法就是去掉r4,r5电阻。

wangkj · 发表于 2009-6-29 10:40:13

拆掉那两个电阻，vjtag 加200欧姆电阻，故障依旧。
看来得找个usb的编程器了。
俺自己想办法。不知道谁有卖的。

wangkj · 发表于 2009-7-1 12:16:04

用usb的烧写器好了。

hushucon · 发表于 2010-10-11 19:36:07

回复1楼wangkj：

hushucon · 发表于 2010-10-11 19:37:08

问题解决了吗，我遇到了和你一样的问题，能知道下吗？ 回复1楼wangkj：