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发表于 2010-8-26 17:00:13
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nTRST (TAP Controller Reset) resets the TAP controller at start.
If debugger is used, A 10K pull-up resistor has to be connected.
If debugger (black ICE) is not used, nTRST pin must be issued by a low active
pulse (Typically connected to nRESET).
nRSTOUT O For external device reset control (nRSTOUT = nRESET & nWDTRST &
SW_RESET)
另外: 我们这边想只用核心板, 自己做功能底板, 对于最小系统是否之需要连接 +5V 电源, RTC电源, 外部复位源即可? 可以 |
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