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by Santhosh Piduri
Wed Apr 26, 2017 4:14 pm
Forum: Bare metal, Assembly language
Topic: GPIO Registers
Replies: 5
Views: 3885

Re: GPIO Registers

Could anyone please explain following code sample for blinker program ? #ifndef MEMIO_H #define MEMIO_H #include "lib.h" //Raspberry Pi 2 IO base address #if(RPI == RPI2) #define ARM_IO_BASE 0x3F000000 #elif(RPI == RPI1) #define ARM_IO_BASE 0x20000000 #else #error "Please define Raspberry Pi version...
by Santhosh Piduri
Wed Apr 26, 2017 3:21 pm
Forum: Bare metal, Assembly language
Topic: GPIO Registers
Replies: 5
Views: 3885

GPIO Registers

Could any one please explain what is GPFSEL, GPSET, GPCLR in detail with example?
by Santhosh Piduri
Sun Apr 23, 2017 3:30 pm
Forum: Bare metal, Assembly language
Topic: Printing characters on monitor connected to raspberry pi 3?
Replies: 10
Views: 2354

Re: Printing characters on monitor connected to raspberry pi

The simplest way to access the screen from bare metal is by requesting a frame buffer to be created in memory and writing pixels directly into that. If you want to write text you will need to generate the characters yourself as the Pi doesn't have anything like that built in. I've done some work on...
by Santhosh Piduri
Sun Apr 23, 2017 4:08 am
Forum: Bare metal, Assembly language
Topic: Printing characters on monitor connected to raspberry pi 3?
Replies: 10
Views: 2354

Re: Printing characters on monitor connected to raspberry pi

Also, this article goes into some depth, and if you get stuck it'd be a good resource. http://www.circuitbasics.com/how-to-write-and-run-a-python-program-on-the-raspberry-pi/ Hello, Thank you very much for replying. I am looking for bare metal program ... to display characters in monitor. There is ...
by Santhosh Piduri
Sat Apr 22, 2017 7:28 pm
Forum: Bare metal, Assembly language
Topic: Printing characters on monitor connected to raspberry pi 3?
Replies: 10
Views: 2354

Printing characters on monitor connected to raspberry pi 3?

Recently I have started bare metal programming, starting with simple LED blink c programming that runs on bare metal. Now I need to print "helloworld" on my monitor.

Could anyone please how to start programming to complete my task in bare metal ?

Thanks in advance!

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