component editing

Question

Hi Guys,

I have started using eagle recently. I am trying to design a PCB that includes nrf51822 device. I have downloaded the NRF51.lbr. While designing I could found that the number of pins is not correct in the part, but package is correct. In part the pin number is 49 instead of 48. I want to delete the unwanted pin from the part and verify the connections. I have tried few tutorials. Most of them are for creating new library. I could not found a tutorial that helps my requirement. Any suggestion will be helpful. (If anyone is having the correct nrf51 library please help .)

thanks

autodeskguest · Accepted Answer

On 9/02/2016 6:00 a.m., rahul mon wrote:

Hi ,
I think the VSS is an extra pin in this library. The package used is
QFN48

This is the link to the library.
https://github.com/jeremysf/Eagle-Libraries?files=1

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Try this. You may prefer the way they have done the 49th pin

https://www.dropbox.com/s/i2unz13wbn70kwj/NordicSemi.lbr

This is all happening in the wrong forum so should stop.

Warren

shabaz · Answer

Hi Rahul,

The datasheet shows there are 49 pins (48 + pad)..

Still don't see what the issue is..

It states:

The exposed center pad of the QFN48 package must be connected to ground for proper device operation.

clem57 · Answer

Agreed. See https://www.snapeda.com/parts/NRF51822-BEACON/Nordic%20Semiconductor/view-part/

I would delete that library and project first. Then install this https://github.com/ThoughtWorkshop/eagle-libraries/tree/master/PTR5518

a look alike or goto nRF51822 Evaluation Kit / Bluetooth Smart/Bluetooth low energy / Products / Home - Ultra Low Power Wireless Solutions fr…

reference layout for gerber files to import into eagle.

Clem

clem57 · Answer

On each you may select Helpful Yes | No Clem