LED hardware/schematic bug
#1
Hi,

I noticed that on the 1.2b schematic (https://files.pine64.org/doc/PinePhone/P...ematic.pdf) the LED pins seem to be labelled incorrectly.

On page 11, grid ref 3A, PD18-LED-R signal is shown connecting to the blue part of the LED, PD19-LED-G connects to the red part, and PD20-LED-B connects to the green part.

However, I also tried controlling the LED on my actual hardware (Beta Edition) and found that in reality, PD18 is green, PD19 is red, and PD20 is blue.

---

Attached is a small test program you can upload and run over FEL to try this on your hardware. The program will light up the LED colour connected to PD18, then PD19, then PD20, then return back to FEL mode. On my phone I see green, red, blue.

Code:
sunxi-tools/sunxi-fel write 0x00010000 ledtest.bin
sunxi-tools/sunxi-fel execute 0x00010000

---

I wanted to report this documentation bug but couldn't find anywhere to contact the Pine64 team except for sales, so I'm posting this on the forum instead. Hopefully someone reads this and fixes the schematic.


Attached Files
.zip   ledtest.zip (Size: 240 bytes / Downloads: 151)
  Reply
#2
(07-10-2021, 07:07 AM)immibis Wrote: Hi,

I noticed that on the 1.2b schematic (https://files.pine64.org/doc/PinePhone/P...ematic.pdf) the LED pins seem to be labelled incorrectly.

On page 11, grid ref 3A, PD18-LED-R signal is shown connecting to the blue part of the LED, PD19-LED-G connects to the red part, and PD20-LED-B connects to the green part.

However, I also tried controlling the LED on my actual hardware (Beta Edition) and found that in reality, PD18 is green, PD19 is red, and PD20 is blue.

---

Attached is a small test program you can upload and run over FEL to try this on your hardware. The program will light up the LED colour connected to PD18, then PD19, then PD20, then return back to FEL mode. On my phone I see green, red, blue.

Code:
sunxi-tools/sunxi-fel write 0x00010000 ledtest.bin
sunxi-tools/sunxi-fel execute 0x00010000

---

I wanted to report this documentation bug but couldn't find anywhere to contact the Pine64 team except for sales, so I'm posting this on the forum instead. Hopefully someone reads this and fixes the schematic.

Thanks, I will ask product team to update the error. You can contact PINE64 team at info@pine64.org
  Reply


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