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“我想问一下， TMS320F28335PGFA 176Pin ,上电瞬间，DSP还没有初始化完成，此时I/O引脚输出是高电平、低电平还是高阻态？”
Eric:
见手册如下说明。0~11高组态，12~87高电平。
All GPIO pins are I/O/Z and have an internal pullup, which can be selectively
enabled or disabled on a per-pin basis. This feature only applies to the GPIO pins. The pullups on
GPIO0–GPIO11 pins are not enabled at reset. The pullups on GPIO12–GPIO87 are enabled upon reset.
