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F280049C程序烧写问题



你好,请教一下,在给F280049C这颗芯片通过烧录器JTAG引脚烧写应用程序到内部Flash时,哪些引脚是必须连接的,正确的连接方式是怎样的?是否所有电源引脚都需要接上正确的电源电压?某些电源引脚没有接上电源能不能正确完成烧写过程?在烧写过程中某些电源引脚(如VDDIO_SW和VSS_SW)不接会不会引起DSP器件失效?