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甘满盛

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[问答]

PIC18F项目怎么从40pins DIP移植到28pins SSOP

大家好,我必须把我的项目从PIC18F46K22 40引脚DIP封装到它的28引脚SSOP封装PIC18F26K22。该项目使用20MHz晶体和VDD=5V。有人可以指导我SOP或最佳实践来做这类任务吗?BTW的新硬件板与SSOP封装,所以我也可以做一步一步的测试。

以上来自于百度翻译


      以下为原文

    Hello everyone

I have to port my project from PIC18F46K22 40pins DIP package to its 28pins SSOP package PIC18F26K22.

The project is using 20MHz crystal and Vdd=5V.

Can someone guide me the sop or best practices to do this type of task? Btw the new hardware boards with ssop package are made so i can do step by step testing also.

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王璨

2018-9-21 10:36:49
让我们都希望硬件人员知道他在做什么,如果我必须做的话,我会做的:尽量保留尽可能多的信号(这意味着把信号分配给与以前一样的逻辑端口)。这将不需要或很少调整(最终一些PPS分配,但没有什么超出)。“重新路由”那些信号不匹配1。在适当的新端口。已经做到这一点(并且提供没有新的硬件错误),新的板预计在第一次尝试时平滑运行。

以上来自于百度翻译


      以下为原文

   
Let us both hope the hardware guy knew what he was doing  
 
What I would do if I had to do it:

  • Try to leave as many signal unaltered as possible (meaning to assign the signal to the same logical port as before). This would require no or little adjustments (eventually some PPS assignment, but nothing beyond that).
  • "Re-route" those signals not matching 1. to the appropriate new port.
Having done this (and provided there are no "new" hardware errors), the new board is expected to run smooth on the first attempt.
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