pruss_add.c File Reference

Example: minimal code for PRUSS firmware. More...

#include "stdio.h"
#include "string.h"
#include "libpruio/pruio.h"
#include "libpruio/pruio_pins.h"
#include "libpruio/pruio_prussdrv.h"

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Functions
int32	load_firmware (uint32 IRam)
	load firmware to PRU More...
int	main (int argc, char **argv)
	The main function. More...

Detailed Description

Example: minimal code for PRUSS firmware.

This file contains an short and simple example for parallel usage of the other PRUSS. Find a functional description in section pruss_add.

Licence: GPLv3, Copyright 2018-2023 by Thomas{ doT ]Freiherr[ At ]gmx[ DoT }net

Compile by: gcc -Wall -o pruss_add pruss_add.c -lpruio

Since

0.6.2

Definition in file pruss_add.c.

Function Documentation

load_firmware()

int32 load_firmware

(

uint32

IRam

)

load firmware to PRU

Parameters

IRam	The IRam ID for the PRU to use

Returns

Zero on success, otherwise -1

The instructions are compiled by command

pasm -V3 -c pruss_add.p

from source code (named pruss_add.p)

.origin 0
  LDI  r0, 0
start:
  LBBO r1, r0, 4, 16 // load parameters in r1 (start value), r2 (add value), r3 (count), r4 (interrupt)

  LOOP finished, r3.w0
  ADD  r1, r1, r2    // compute result
finished:

  SBBO r1, r0, 0, 4  // store result
  MOV  r31.b0, r4.b0 // send notification to host
  HALT
  JMP start

Since

0.6.2

Definition at line 49 of file pruss_add.c.

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main()

int main	(	int	argc,
		char **	argv
	)

The main function.

create new driver structure

Definition at line 68 of file pruss_add.c.

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