How to generate 8Mhz signal via GPIO

RE: How to generate 8Mhz signal via GPIO

Ole Morten — Thu, 09 Jan 2014 09:28:42 GMT

Yes, it is. Refer to the migration whitepaper and the PCN for details on migration and changes: https://www.nordicsemi.com/eng/content/download/35525/598833/file/nWP-018_v1.1.pdf https://www.nordicsemi.com/eng/content/download/29460/494089/file/nRF51822-PCN%20v1%200.pdf

RE: How to generate 8Mhz signal via GPIO

Chester — Thu, 09 Jan 2014 09:26:15 GMT

IC mark QFAAC0 Is that the first revision?

RE: How to generate 8Mhz signal via GPIO

Ole Morten — Thu, 09 Jan 2014 08:35:00 GMT

As the readme says, the project is made for SDK 5.1.0, so if you try to compile it with a previous version, you'll most likely have to do some changes, in particular with regard to PIN names.

Due to a couple of PANs (see inline comments in the updated code), you'll also be limited to 4 MHz if you have a first revision chip.

RE: How to generate 8Mhz signal via GPIO

Chester — Wed, 08 Jan 2014 11:55:55 GMT

I couldn't build the project, is there exist version problem? =>(1)I can't build project directly (2)I port main function to my SDK project, it could be built, but signal seems always being pull high

RE: How to generate 8Mhz signal via GPIO

Ole Morten — Wed, 08 Jan 2014 10:56:00 GMT

Please take a look at this project.