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本帖最后由 jacklee_47pn 于 2014-12-23 09:46 编辑 9 }% N8 U; G! v6 `( r, n/ v
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可以用 GPIO0 和 GPIO1 接 LED (記得要加限流電阻),修改軟件去支持LED點燈功能即可。下方是datasheet 所敘述:/ r! W0 M7 f: _
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●4ch-GPIO . @$ h$ Z5 |4 S! y$ J- X
Supports interrupt function (level/edge) for input signals
/ k' I) ^# f# c! i7 z) r* A Outputs power-on signal for external devices , s0 M% w6 G7 o: s% a
Power on/off input for System’s power up/down * E; [, ]; l A, R* C
DCDCx and LDOx can be controlled by external input / H8 U9 N5 x. |6 v; Z9 h0 n- X
GPIO2 can output LDORTC2
! ]0 I+ @9 h$ [$ D# A2 z( q8 P GPIO0 and GPIO1 have input to ADC for voltage monitor
: W* n. t& o8 u5 B% D; D+ I GPIO0 and GPIO1 have maximum 15mA sink for LED. 4 ^* N, f$ X( I9 x# @# O4 o6 \
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