You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
553 B
28 lines
553 B
11 years ago
|
/*
|
||
|
|
* prucomm.h - structure definitions for communication
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#ifndef PRUCOMM_H
|
||
|
|
#define PRUCOMM_H
|
||
|
|
|
||
|
|
#include "pru_defs.h"
|
||
|
|
|
||
10 years ago
|
#define NUM_RING_ENTRIES 300
|
||
|
11 years ago
|
|
||
|
|
#define PWM_CMD_MAGIC 0xf00fbaaf
|
||
|
|
#define PWM_REPLY_MAGIC 0xbaaff00f
|
||
|
|
|
||
|
|
struct ring_buffer {
|
||
|
|
volatile uint16_t ring_head;
|
||
|
|
volatile uint16_t ring_tail;
|
||
|
|
struct {
|
||
|
|
uint16_t pin_value;
|
||
|
|
uint16_t delta_t;
|
||
|
|
} buffer[NUM_RING_ENTRIES];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* the command is at the start of shared DPRAM */
|
||
|
|
#define RBUFF ((volatile struct ring_buffer *)DPRAM_SHARED)
|
||
|
|
|
||
|
|
#endif
|