int main (void)
{
unsigned int ret, i, j, k;
tpruss_intc_initdata pruss_intc_initdata = PRUSS_INTC_INITDATA;
printf("\nINFO: Starting %s example.\r\n", "pru_gpio");
/* Initialize the PRU */
prussdrv_init ();
//NOTE : The PRU code does not export the PIN so this must be
//done for any pin that used.
LOCAL_export_pin(32 + 16,"out"); //GPIO1_16
LOCAL_export_pin(32 + 13,"in"); //GPIO1_13
/* 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);
/* Initialize example */
printf("\tINFO: Initializing example.\r\n");
LOCAL_exampleInit();
//Start th emain loop
pruDataMem_byte[CMD_VALUE] = CMD_NO_OP;
/* Execute example on PRU */
printf("\tINFO: Executing example.\r\n");
prussdrv_exec_program (PRU_NUM, "./pru_gpio.bin");
//The PRU is just configured to use GPIO1 for now. This can be changed easily in the assembly.
set_pin(16); //GPIO1_16
clear_pin(16);
int value = read_pin(13); //GPIO1_13
printf("PIN value is %d\n",value);
printf("\tINFO: PRU completed transfer.\r\n");
prussdrv_pru_clear_event (PRU0_ARM_INTERRUPT);
/* Disable PRU and close memory mapping*/
prussdrv_pru_disable (PRU_NUM);
prussdrv_exit ();
LOCAL_unexport_pin(38);
return(0);
}
int main (void)
{
unsigned int ret;
tpruss_intc_initdata pruss_intc_initdata = PRUSS_INTC_INITDATA;
printf("\nINFO: Starting %s example.\r\n", "dmx");
/* Initialize the PRU */
prussdrv_init ();
LOCAL_export_pin(38);
/* 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);
/* Initialize example */
printf("\tINFO: Initializing example.\r\n");
LOCAL_exampleInit();
/* Execute example on PRU */
printf("\tINFO: Executing example.\r\n");
prussdrv_exec_program (PRU_NUM, "./dmx.bin");
LOCAL_udp_listen();
pruDataMem_byte[DMX_HALT_ADDR] = 1;
/* 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 ();
LOCAL_unexport_pin(38);
return(0);
}
int main (void)
{
unsigned int ret, i, j, k;
tpruss_intc_initdata pruss_intc_initdata = PRUSS_INTC_INITDATA;
printf("\nINFO: Starting %s example.\r\n", "dmx");
/* Initialize the PRU */
prussdrv_init ();
LOCAL_export_pin(38);
/* 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);
/* Initialize example */
printf("\tINFO: Initializing example.\r\n");
LOCAL_exampleInit();
/* Execute example on PRU */
printf("\tINFO: Executing example.\r\n");
prussdrv_exec_program (PRU_NUM, "./dmx.bin");
LOCAL_udp_listen();
// Instead of waiting patiently for the PRU to finish, we're going to screw around with the shared memory and hopefully influence the PRU
/* for (k = 0; k < 10; k++) {
for (j = 0; j < 5; j++) {
for (i = 0; i < 3; i++) {
pruDataMem_byte[0] = 64;
usleep(10000);
pruDataMem_byte[0] = 0;
usleep(10000);
}
for (i = 0; i < 3; i++) {
pruDataMem_byte[1] = 64;
usleep(10000);
pruDataMem_byte[1] = 0;
usleep(10000);
}
}
for (j = 0; j < 5; j++) {
for (i = 0; i < 64; i++) {
pruDataMem_byte[0] = i;
pruDataMem_byte[1] = 64-i;
usleep(10000);
}
for (i = 0; i < 64; i++) {
pruDataMem_byte[0] = 64-i;
pruDataMem_byte[1] = i;
usleep(10000);
}
}
}
*/
pruDataMem_byte[DMX_HALT_ADDR] = 1;
/* 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 (PRU0_ARM_INTERRUPT);
/* Disable PRU and close memory mapping*/
prussdrv_pru_disable (PRU_NUM);
prussdrv_exit ();
LOCAL_unexport_pin(38);
return(0);
}
