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Published 20 hours ago • verified publisher icon bigtreetech

Pinout for SKR V1.3 AUX-1

Open goldjunge91 opened this issue 4 years ago • 9 comments

hello guys i need the PIN numbers for the AUX-1 pins. I will connect a PT100 to it the red marked Pin numbers i need.
I found the other pictures on google. but it doesn't work FB_IMG_1562752288701 (1) FB_IMG_1562751997929 Screenshot_3

goldjunge91 avatar Jan 29 '20 20:01 goldjunge91

@goldjunge91 , did you ever figure this out? I am having issues getting the board to post when the firmware is configured to use a PT100 amp board.

Per instructions I have, I set TEMP_SENSOR_0 to 20 in Configuration.h, but the board does not post configured that way. If I change it to 1 then it posts but the PT100 board is not configured. What am I missing? All else seems to be working.

I feel like I am missing something obvious. Any help is greatly appreciated.

bdelia avatar Apr 17 '20 22:04 bdelia

yes you need to change in pins btt_skr_common.h #ifndef TEMP_0_PIN #define TEMP_0_PIN ---> P0_24_A1 // A1 (T1) - (68) - TEMP_0_PIN but i have never found a pin layout for a analog input pin. when you know how is the number for the AUX1 TX0 pin then u can change #define TEMP_0_PIN or u can test with downgrade the voltage to 3.3V and use the normal temp pin i have shipped back the board and now i use a mks board

goldjunge91 avatar Apr 17 '20 23:04 goldjunge91

If anyone needs further help on this issue I finally had someone point me to this reference manual for the LPC1769/68/67/66/65/64/63 micro-controller, very helpful. Page 10 is where the pin assignments get defined.

https://www.nxp.com/docs/en/data-sheet/LPC1769_68_67_66_65_64_63.pdf?fbclid=IwAR3QKfZhRvsdNU1BDoAlD6861QcTgNXTYBp2D8TwN1QkZDdlmCYKbTKfDlY

bdelia avatar Apr 19 '20 16:04 bdelia

I will test it in 1 week and while Update what work :-) thanks men

goldjunge91 avatar Apr 19 '20 17:04 goldjunge91

@goldjunge91, I ended up using #define TEMP_0_PIN P0_03_A6

bdelia avatar Apr 19 '20 21:04 bdelia

Can you upload a picture what pin this is ?

goldjunge91 avatar Apr 20 '20 06:04 goldjunge91

Can you upload a picture what pin this is ?

It is the one labeled RX0 within the AUX-1 header. Let me know if you still need a picture and I can add one later today.

bdelia avatar Apr 20 '20 17:04 bdelia

I just wanted to add the Klipper configuration as I just spent days looking for it and could not find the answer. For klipper and PT100 and skr v1.3

sensor_type: PT100 INA826 sensor_pin: P0.2

It needs to be plugged into the 3.3V

brazda avatar Aug 19 '21 14:08 brazda

I just wanted to add the Klipper configuration as I just spent days looking for it and could not find the answer. For klipper and PT100 and skr v1.3

sensor_type: PT100 INA826 sensor_pin: P0.2

It needs to be plugged into the 3.3V

This worked like a charm, Thank you :)

jasonpointer avatar Aug 26 '21 18:08 jasonpointer