Xilinx FPGA 下载问题
时间：10-02
整理：3721RD
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我现在有一块xc5vfx30t的板子，使用测试bit，fpga能够下载成功（JTAG模式），flash也能够下载成功（JTAG模式），测试bit的逻辑很简单，就是点亮一个LED灯。
但是使用正式bit时，fpga无法下载成功（JTAG模式；正式的bit中有很多的逻辑，还包括高速串行transceiver，bit可以在其它相同板子上跑），具体的信息如下：
INFO:iMPACT - Current time: Tue Sep 10 16:25:23 2013
PROGRESS_START - Starting Operation.
Maximum TCK operating frequency for this device chain: 33000000.
Validating chain...
Boundary-scan chain validated successfully.
1: Device Temperature: Current Reading: -273.00 C
1: VCCINT Supply: Current Reading: 0.000 V
1: VCCAUX Supply: Current Reading: 0.000 V
'1': Programming device...
Match_cycle = NoWait.
Match cycle: NoWait
done.
INFO:iMPACT:2217 - Error shows in the status register, CRC Error bit is NOT 0.
INFO:iMPACT:2218 - Error shows in the status register, release done bit is NOT 1.
INFO:iMPACT:2219 - Status register values:
INFO:iMPACT - 1011 0000 1001 0000 0000 0011 1000 0000
INFO:iMPACT:579 - '1': Completed downloading bit file to device.
INFO:iMPACT - '1': Programing completed successfully.
Match_cycle = NoWait.
Match cycle: NoWait
INFO:iMPACT - '1': Checking done pin....done.
'1': Programming terminated. DONE did not go high.
PROGRESS_END - End Operation.
Elapsed time = 4 sec.
有没有高手遇到过这种情况，会不会是FPGA芯片自身有问题，导致逻辑多了之后影响了JTAG下载电路。
但是使用正式bit时，fpga无法下载成功（JTAG模式；正式的bit中有很多的逻辑，还包括高速串行transceiver，bit可以在其它相同板子上跑），具体的信息如下：
INFO:iMPACT - Current time: Tue Sep 10 16:25:23 2013
PROGRESS_START - Starting Operation.
Maximum TCK operating frequency for this device chain: 33000000.
Validating chain...
Boundary-scan chain validated successfully.
1: Device Temperature: Current Reading: -273.00 C
1: VCCINT Supply: Current Reading: 0.000 V
1: VCCAUX Supply: Current Reading: 0.000 V
'1': Programming device...
Match_cycle = NoWait.
Match cycle: NoWait
done.
INFO:iMPACT:2217 - Error shows in the status register, CRC Error bit is NOT 0.
INFO:iMPACT:2218 - Error shows in the status register, release done bit is NOT 1.
INFO:iMPACT:2219 - Status register values:
INFO:iMPACT - 1011 0000 1001 0000 0000 0011 1000 0000
INFO:iMPACT:579 - '1': Completed downloading bit file to device.
INFO:iMPACT - '1': Programing completed successfully.
Match_cycle = NoWait.
Match cycle: NoWait
INFO:iMPACT - '1': Checking done pin....done.
'1': Programming terminated. DONE did not go high.
PROGRESS_END - End Operation.
Elapsed time = 4 sec.
有没有高手遇到过这种情况，会不会是FPGA芯片自身有问题，导致逻辑多了之后影响了JTAG下载电路。
后来请教了高手，发现是bit加密导致的。
把flash中的内容擦除，再往FPGA中下载bit文件或再往flash中烧写，这样做应该可以解决问题。
就是，怎么解决啊?也遇到这问题了
INFO:iMPACT:2218 - Error shows in the status register, release done bit is NOT
1.
INFO:iMPACT:2219 - Status register values:
INFO:iMPACT - 0000 0000 0000 0000 0000 0000 0000 0000
INFO:iMPACT:579 - '1': Completed downloading bit file to device.
INFO:iMPACT - '1': Checking done pin....done.
make: *** [download] Error 1
Done！
in the .log file,
Set XFA value to z0
楼上什么意思啊，能说明白点吗
good
good
LZ是怎么解决的，我也遇到了这样的问题
能说得详细点吗?我也遇到了这种情况，CRC报错，相同的代码，一块板子OK，另一块就始终不行。请大神指教