Virtex-6采用BPI模式，Flash用的XCF128，在通过FPGA向flash中下载mcs文件时，每次都是运行到12%就停下不动了。
强制断电退出后，iMPACT的提示如下：
PROGRESS_START - Starting Operation.
Maximum TCK operating frequency for this device chain: 66000000.
Validating chain...
Boundary-scan chain validated successfully.
1: Device Temperature: Current Reading: 34.63 C, Min. Reading: 34.13 C, Max. Reading: 38.56 C
1: VCCINT Supply: Current Reading: 1.008 V, Min. Reading: 1.002 V, Max. Reading: 1.020 V
1: VCCAUX Supply: Current Reading: 2.496 V, Min. Reading: 2.479 V, Max. Reading: 2.505 V
'1': BPI access core not detected. BPI access core will be downloaded to the device to enable operations.
INFO:iMPACT - Downloading core file C:/Xilinx1/14.7/ISE_DS/ISE/virtex6/data/xc6vsx315t_jbpi.cor.
'1': Downloading core...
Match_cycle = NoWait.
Match cycle: NoWait
LCK_cycle = NoWait.
LCK cycle: NoWait
done.
INFO:iMPACT:2219 - Status register values:
INFO:iMPACT - 0011 0001 0101 1100 0001 1011 1100 0000
INFO:iMPACT:2492 - '1': Completed downloading core to device.
'1': BPI access core not detected. BPI access core will be downloaded to the device to enable operations.
INFO:iMPACT - Downloading core file C:/Xilinx1/14.7/ISE_DS/ISE/virtex6/data/xc6vsx315t_jbpi.cor.
'1': Downloading core...
Match_cycle = NoWait.
Match cycle: NoWait
LCK_cycle = NoWait.
LCK cycle: NoWait
done.
INFO:iMPACT:2219 - Status register values:
INFO:iMPACT - 0011 0001 0101 1100 0001 1011 1100 0000
INFO:iMPACT:2492 - '1': Completed downloading core to device.
Cable speed is default to 3Mhz or lower for BPI operations.
Current cable speed is set to 3.000 Mhz.
INFO:iMPACT - Core Status Register: [80] : 1
INFO:iMPACT - Core Status Register: [81] : 1
INFO:iMPACT - Core Status Register: [82] : 1
INFO:iMPACT - Core Status Register: [83] : 1
INFO:iMPACT - Core Status Register: [84] : 1
INFO:iMPACT - Core Status Register: [85] : 1
INFO:iMPACT - Core Status Register: [86] : 1
INFO:iMPACT - Core Status Register: [87] : 1
INFO:iMPACT - Core Status Register: [88] : 1
INFO:iMPACT - Core Status Register: [89] : 1
INFO:iMPACT - Core Status Register: [90] : 1
INFO:iMPACT - Core Status Register: [91] : 1
INFO:iMPACT - Core Status Register: [92] : 1
INFO:iMPACT - Core Status Register: [93] : 1
INFO:iMPACT - Core Status Register: [94] : 1
INFO:iMPACT - Core Status Register: [95] : 1
'1': Errors encountered while loading microprogram.
PROGRESS_END - End Operation.
那位专家帮忙分析下问题。谢谢了！