#include "pic24_util.h"#include <libpic30.h>Go to the source code of this file.
Defines | |
| #define | DEBOUNCE_DLY 15 |
| #define | CYCLES_PER_MS ((uint32)(FCY * 0.001)) |
| #define | CYCLES_PER_US ((uint32)(FCY * 0.000001)) |
| #define | DELAY_MS(ms) delayAndUpdateHeartbeatCount(CYCLES_PER_MS * ((uint32) ms)); |
| #define | DELAY_US(us) delayAndUpdateHeartbeatCount(CYCLES_PER_US * ((uint32) us)); |
Functions | |
| static void | delayAndUpdateHeartbeatCount (uint32 u32_cyc) |
Definition in file pic24_delay.h.
| #define CYCLES_PER_MS ((uint32)(FCY * 0.001)) |
A constant which gives the number of processor clock cycles in 1 millisecond. This value is cast to a uint32.
Definition at line 51 of file pic24_delay.h.
| #define CYCLES_PER_US ((uint32)(FCY * 0.000001)) |
A constant which gives the number of processor clock cycles in 1 microsecond. This value is cast to a uint32.
Definition at line 57 of file pic24_delay.h.
| #define DEBOUNCE_DLY 15 |
Define a debounce delay for use in reading pushbutton switches. The value is specified in milliseconds.
Definition at line 44 of file pic24_delay.h.
| #define DELAY_MS | ( | ms | ) | delayAndUpdateHeartbeatCount(CYCLES_PER_MS * ((uint32) ms)); |
A macro to delay the given number of milliseconds. The maximum delay is ~ 100+ seconds when FCY = 40 MHz, because the underlying function delayAndUpdateHeartbeatCount uses a uint32 value for the number of processor clocks to delay.
| ms | The number of milliseconds to delay. |
Definition at line 86 of file pic24_delay.h.
| #define DELAY_US | ( | us | ) | delayAndUpdateHeartbeatCount(CYCLES_PER_US * ((uint32) us)); |
A macro to delay the given number of microseconds.
| us | The number of microseconds to delay. |
Definition at line 92 of file pic24_delay.h.
| static void delayAndUpdateHeartbeatCount | ( | uint32 | u32_cyc | ) | [inline, static] |
Delay the given number of processor clock cycles, then notify the heartbeat that time passed. Scale the time added to the heartbeat because we are not incurring the same overhead as if we repeatedly called doHeartbeat().
| u32_cyc | Number of processor clock cycles to delay. |
Definition at line 71 of file pic24_delay.h.
1.5.8