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For questions pertaining to compiling C programs on the Raspberry Pi.

5 votes
2 answers
2k views

Outb in C to access GPIO

I want to adapt some of my previous software which interfaced my project board via the Parallel port via direct output to the PP address (0x378) using Outb in C. … Can I directly access the GPIO using Outb in C (ofc with a different port address). …
Alexander's user avatar
  • 600
4 votes
1 answer
6k views

Read the value of an GPIO output pin

I've made a program using the wiringPi library that assigns GPIO pins to toggle at the press of associated number keys. I'd like my program to show the current status of the pins, even if they are tog …
Alexander's user avatar
  • 600