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F28M35H52C: 芯片复位及时钟主频问题

Part Number: F28M35H52C

进一步查找问题,上电初始化后,查看 系统寄存器状态,默认配置参数不正常,下载RAM版程序后,配置PLL的代码不起作用(相关寄存器不变,还是0x0000).

下载FLASH板程序,无法下载,提示PLL失锁。