用pof文件转成jbc文件，在linux下通过jtag升级cpld max2，结果altera-stapl驱动打印了Unrecognized device，并返回了错误。 - Intel Community

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用pof文件转成jbc文件，在linux下通过jtag升级cpld max2，结果altera-stapl驱动打印了Unrecognized device，并返回了错误。

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这里是我们使用的驱动程序，这个是linux内核态的驱动代码，其中altera-stapl是altera在linux主干上的驱动代码，asp-cpld是移植AMI ast2500的jtag驱动以及CPLD升级接口驱动。

用户态代码使用的是jtag_unittest --action-program xxx.jbc进行升级操作。

执行顺序：

用pof文件转成jbc文件，在linux下通过jtag升级cpld，结果altera-stapl驱动打印了Unrecognized device，并返回了错误。

可否帮忙看下下一步定位思路该如何。

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HI,

May I know if you face issue if you are using quartus_jli (Quartus software - https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/AN425.pdf)? May I know how do you implement the saltera-stapl driver code?

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