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"Hi, im new to PCB design. I want to avoid any major mistakes. Can I ask you guys
a few questions?:) 1. What was your biggest 3 mistakes designing and why? 2. most popular software that you use and why 3. Biggest 3 frustrations about PCB design? 4. Biggest 3 fears (maybe related to PCB Assembly)?" Your guidelines will be more helpful to proceed further.:D ThanksLink Copied
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1. A. Not planning for proper clearance around components.
B. Getting footprints for connectors correct on the board (mirroe images, pin sequencing 1-2 3-4 5-6 7-8 compared to 1 5 2 6 3 7 4 8 compared to 1 8 2 7 3 6 4 5 C. Not properly addressing clock traces and interference. 2. no comment 3. same 4. A. Initial power up! B. Accidental shorting of power / Gnd while testing C. That little puff of blue / grey smoke.- Mark as New
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It's easy to overlook the jtag or configuration circuits. While they do run fairly slowly, a clock is a clock. When you've got the JTAG TCK routed all over the place it's easy to run into reflection problems. And a double-clock is bad even at 10 MHz. So it's good to think about the design a bit, buffer if needed, or at least put down a series termination.
Gregor- Mark as New
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Yes, not giving enough attention to JTAG and config is a common problem. Check out this thread that has some pointers on JTAG...
http://www.alteraforum.com/forum/showthread.php?t=687- Mark as New
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Thanks for you support everyone..!! :D
Regards, S
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