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谢谢哈!
买了高倍显微镜把每个脚都重新焊过,买了低纹波的电源,用示波器测晶振、XRS脚、CLKOUT输出、MP/MC脚、VDD、VDDIO、VDDAIO等等都正常后,实在没办法了,随手打开GEL里的PLL ratio设置成跟FLASH program里的PLL设置一样,正常了,可以erase、program了。
哈哈哈,实在怕了换芯片了。