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clock.c
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clock.c
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/*
* led.c
*
* Copyright (C) 2013 ADLab - http://www.analogdigitallab.org/
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/******************************************************************************
* Include Files *
******************************************************************************/
// Standard header files
#include <stdio.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
// Driver header file
#include <pruss/prussdrv.h>
#include <pruss/pruss_intc_mapping.h>
/******************************************************************************
* Explicit External Declarations *
******************************************************************************/
/******************************************************************************
* Local Macro Declarations *
******************************************************************************/
#define PRU_NUM 0
#define PRU_PROG "./clock.bin"
/******************************************************************************
* Local Typedef Declarations *
******************************************************************************/
/******************************************************************************
* Local Function Declarations *
******************************************************************************/
/******************************************************************************
* Local Variable Definitions *
******************************************************************************/
/******************************************************************************
* Intertupt Service Routines *
******************************************************************************/
/******************************************************************************
* Global Variable Definitions *
******************************************************************************/
/******************************************************************************
* Global Function Definitions *
******************************************************************************/
int main (void)
{
unsigned int ret;
tpruss_intc_initdata pruss_intc_initdata = PRUSS_INTC_INITDATA;
printf("\nINFO: Starting %s example.\r\n", "led");
/* Initialize the PRU */
prussdrv_init ();
/* Open PRU Interrupt */
ret = prussdrv_open(PRU_EVTOUT_0);
if (ret)
{
printf("prussdrv_open open failed\n");
return (ret);
}
/* Get the interrupt initialized */
prussdrv_pruintc_init(&pruss_intc_initdata);
/* Execute example on PRU */
printf("\tINFO: Executing example.\r\n");
prussdrv_exec_program (PRU_NUM, PRU_PROG);
/* Wait until PRU0 has finished execution */
/*printf("\tINFO: Waiting for HALT command.\r\n");*/
/*prussdrv_pru_wait_event (PRU_EVTOUT_0);*/
/*printf("\tINFO: PRU completed transfer.\r\n");*/
/*prussdrv_pru_clear_event (PRU_EVTOUT_0, PRU0_ARM_INTERRUPT);*/
/* Disable PRU and close memory mapping*/
/*prussdrv_pru_disable(PRU_NUM); */
/*prussdrv_exit ();*/
return(0);
}