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请问用的是什么仿真器?
仿真器是XDS510,我现在只是焊接了电源和DSP部分,外扩的SDRAM、CPLD和FLASH都还没有焊接。
量一下CLKOUT4, CLKOUT6管脚有没有时钟输出?RESET信号,CLKIN是否有?
CLKIN是有的,CLKOUT4和CLKOUT6引脚没有引出来。
独立的DM642的CVDD引脚对地的电阻式多大啊,我拿了一片DM642,测了一下CVDD对地电阻才80,而DVDD对地电阻达到18k,这个正常吗?