Confusing schematic connection on Sparkfun Edge

Sensors Imaging
1

A problem still has not replied :
(Updated Schematic of Sparkfun Edge)
Specifically, the example provided (Using SparkFun Edge Board with Ambiq Apollo3 SDK - SparkFun Learn) implies the connection :

HM01B0 Demo
 SCL:   Pin 8
 SDA:   Pin 9
 MCLK:  Pin 13
 VSYNC: Pin 15
 HSYNC:  Pin 22
 PCLK:  Pin 23
 D0:    Pin 24
 D1:    Pin 25
 D2:    Pin 26
 D3:    Pin 27
 D4:    Pin 28
 D5:    Pin 5
 D6:    Pin 6
 D7:    Pin 7

However, the connection on schematic is:

IMG_2085
IMG_2085991×562 77.8 KB

There is a conflict on gpio pin configuration, which is SCL with pin8 on example, but with pin27 on schematic.
It works well when I apply the example, so is there a problem with schematic?

Looking forward for reply, thanks a lot!

2

Indeed there is a problem with the schematic.

I have checked the pin definitions in Sparkfun library versions V1x , V2.x for Edge as well. Also the Edge2 board schematic (SparkFun_Edge/Hardware/Schematic_SparkFun_Edge2.pdf at master · sparkfun/SparkFun_Edge · GitHub) is showing the correct mapping. The pin mapping as you showed is the correct one.

Given the Sparkfun Edge is obsolete I would not expect an update on the schematics anymore

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3

Thank you so much Paul!! What a quick useful reply :slight_smile:
I have checked the recommended schematic, which is indeed inspiring.
It’s a really old tech hahaha😂,I will update it on my own schematic.
Thanks again for your kindness.

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