GPIO on UP Squared - its terrible!
I need to use GPIO on UP Squared with Ubuntu 22 server - reed many sources and try any days without success(((
I have problem with pin for LED:
-gpioset gpiochip4 27=0 or 1 - turn on led onle for amount 0.5sec
-doesn't matter led connect to 3.3 or gnd.
-try some modes "push-pull|open-drain"
-try without led only with oscilloscope for little current - only one pulse
How to turn on GPIO for a long time or for pulse with my duration?
Documentation is very bad - no one workable instuctions!
Have no docs for Ubuntu 22, dont need to change core, because driver pincrtl is present in default
2 No any information for HAT GPIO parameters in BIOS!
Is there a need to change them?
I set up in BIOS Output mode, but in gpioinfo it still as Input!
No information that driver pincrtl in in core.
No samples for use pincrtl.
Sample with Bash "echo 26 > /sys/class/gpio/export" - dont work!
"/sys/class/gpio# ls" - dont include simple GPIO, only chips
"export gpiochip0 gpiochip779 gpiochip822 gpiochip869 gpiochip946 unexport"
Pionouts are bad - for example pin 13:
- in table pin13-up pinout gpio4-linux gpio 27
- in BIOS pin13-gpio5
- What is correct?
- All Categories
- 105 Announcements & News
- 54 Product News - New Product/Product Change Notice/ End-of-life
- 185 Welcome Developers!
- 55 Unboxing & Project Sharing
- 48 Tech Updates
- 693 UP Products
- 11 UP 7000
- 1 UP Squared i12
- 10 UP Xtreme i12
- 11 UP Squared Pro 7000
- 1 UP Element i12 Edge
- 19 UP Squared V2
- 59 UP 4000
- 24 UP Xtreme i11
- 35 UP Squared 6000
- 60 UP Squared Pro
- 143 UP Xtreme
- 837 UP Squared
- 1.4K UP Board
- 89 UP Core Plus
- 222 UP Core
- 3 UP Xtreme Lite
- 44 UP AI Edge
- 216 Starter Kits & Peripheral