斯巴达3xc3s4000菊花链无法从JTAG接口进行编程

将两个DONE引脚连接在一起，并且线路上没有上拉电阻。
在配置的最后几个步骤中需要完成DONE。
如果它保持低电平，FPGA会认为配置失败。
在JTAG编程中，两个FPGA的两个DONE引脚应该分开。
因为每次只能编程一个FPGA，当DONE需要上拉时，另一个将保持低电平然后失败。
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以下为原文

You connect the two DONE pins together, and you don't have pull-up resistors on the line.
DONE needs to be pulled up at the last few steps of configuration. If it keeps low, FPGA will think configuration is failed. In JTAG programming, two DONE pins of the two FPGAs should be separated. because you can only program one FPGA each time, and when DONE needs to pull up, the other one will hold the line low and then you failed.
 
 
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喜
我已经通过DONE引脚的返工连接了一个上拉电阻，是的，我只是读了数据表中的行，它说你不能通过jtag进行配置。
所以把它留在后面，我似乎也无法通过EEPROM编程fpgas。
我将EEPROM单独编程，然后将其带入链中，将fpga 1设置为主串行，将fpga2设置为从串口，但fpgas似乎没有编程。
我不知道我错过了什么。
我正在使用xcf16p EEPROM。
谢谢



以下为原文

hi,i have connected a pull up resistor through rework with the DONE pin and yeah i just read the line in datasheet where it says that you cant configure through jtag. So leaving that behind, i cant seem to program the fpgas through EEPROM too. I program the EEPROM separately,then bring it into the chain, set fpga 1 to master serial and fpga2 to slave serial but fpgas dont seem to get programmed. I dont know what am i missing. I'm using xcf16p EEPROM.Thanks

验证PROM并确保其正确编程。
读取FPGA的器件状态并显示状态字。
此外，你是如何生成菊花链mcs文件的？
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--------不要忘记回复，kudo，并接受为解决方案.----------------------------
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以下为原文

Verify the PROM and guarantee it's properly programmed.
 
Read device status of the FPGA and show me the status word.
 
Besides, how did you generate the daisy chain mcs file?
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STATUS WORD边界扫描链成功验证。'2'：读取状态寄存器内容... CRC错误：0RESERVED：0DCM锁定：1DCI匹配：1legacy输入错误：GTS_CFG_B的0状态：GWE的0状态：GHIGH的0状态：MODE的0值
引脚M0：MODE引脚M1的1值：MODE引脚M2的0值：CFG_RDY的1值（INIT_B）：来自DONE引脚的1DONEIN输入：0ID_ERROR：0RESERVED：0RESERVED：0PROGRESS_END  - 结束操作。
这是状态字。
PROM即使在链条中也能正常编程。
我正在从位文件生成mcs文件。
我正在使用相同的文件来编程两个FPGA。
我做对了吗？
请告诉我这件事或直接告诉我正确的文件。
还可以从EEPROM中仅编程链中的一个FPGA，即第一个FPGA，而不会将其他FPGA从循环中断开。
谢谢



以下为原文


STATUS WORD
Boundary-scan chain validated successfully.
'2': Reading status register contents...
CRC error                                         :         0
RESERVED                                      :         0
DCM locked                                      :         1
DCI Matched                                     :         1
legacy input error                             :         0
status of GTS_CFG_B                    :         0
status of GWE                                  :         0
status of GHIGH                              :         0
value of MODE pin M0                    :         1
value of MODE pin M1                    :         0
value of MODE pin M2                    :         1
value of CFG_RDY (INIT_B)          :         1
DONEIN input from DONE pin      :         0
ID_ERROR                                       :         0
RESERVED                                      :         0
RESERVED                                      :         0
PROGRESS_END - End Operation.
 
 
Here is the status word.
The PROM is getting programmed fine even in the chain.
and I am generating mcs file from the bit file. And i'm using same file to program both FPGAs. Am i doing the right thing ? Kindly tell me this thing too or direct to the proper documentation.
 
Also is it possible to program only one FPGA in the chain from EEPROM i.e. first FPGA without disconnecting other one from the loop.?
 
Thanks