Question about pin headers on Kinetis KL25Z based Freedom board

[williamstapleto]

I recently received the KL25Z based Freedom board and was trying to match the pin configurations on the board to the pins coming from the chip in order to map the placement of resources.

On the back of the freedom board, there is a silk-screened pin map which includes the following pins listed: C20, C21, C22, C23, C29, and C30.

As far as I can tell from the KL25Z datasheet, no such pins exist.

However, pins E20, E21, E22, E23, E29, and E30 exist.

Could I get official confirmation that these pins on the Freedom board header are the port E pins?

Thanks.

[Smiffytech · Accepted solution]

I think your best reference is the actual schematics:

http://cache.freescale.com/files/soft_dev_tools/hardware_tools/schematics/FRDM-KL25Z_SCH.pdf?fsrch=1...

I found that silkscreen just plain confusing. Reading the top of the board, you can see J2, J1, J9, J10 - which all match up with the schematic, which is marked with the actual MCU pin designations.

Hope this helps!