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低温环境下C6657与FPGA无法通过SRIO接口完成通信任务



A级C6657的工作温度范围为-40~100摄氏度,实验中当低温将到-30时,启动正常并完成SRIO配置,但是DSP无法通过SRIO与FPGA进行通信,无法完成数据传输任务。一直没有发现原因,是否是SRIO硬件接口电路设计原因,还是SRIO的工作温度所限制?请问C6657是否供应S级产品???

急急急......