本帖最后由 NE5532 于 2010-1-5 14:08 编辑
做一个LPC2388的板子，发现有的板子复位不可靠，现象描述在下面（抄的给NXP的邮件，不翻译了）。求助有没有用过的朋友，我是直接用6k2的上拉拉到电源上的。
I'am Using LPC2388. In the datasheet, it said this chip has POR function, So I use it without any external reset IC but tied the reset pin to Vcc from a k2 resistor. But I found some of my system CAN'T reset reliably, after power on, it doesn't run my program, if I tied the reset pin to GND and then release it use a jumper, the program start to run, or if I shortly re-tuen on the power the program runs OK.
My question is : Does LPC2388 can work reliably WITH OUT extern reset IC or R-C reset circuit? i.e. it can reset it self when power on? |
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