Michael Wei
GetTickCount/GetTickCount.h@0:c162b0b96146, 2010-01-25 (annotated)
- Committer:
- no2chem
- Date:
- Mon Jan 25 05:56:58 2010 +0000
- Revision:
- 0:c162b0b96146
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| no2chem | 0:c162b0b96146 | 1 | /* mbed GetTickCount Library |
| no2chem | 0:c162b0b96146 | 2 | * Copyright (c) 2010 Michael Wei |
| no2chem | 0:c162b0b96146 | 3 | */ |
| no2chem | 0:c162b0b96146 | 4 | |
| no2chem | 0:c162b0b96146 | 5 | //shouldn't have to include, but fixes weird problems with defines |
| no2chem | 0:c162b0b96146 | 6 | #include "LPC1768/LPC17xx.h" |
| no2chem | 0:c162b0b96146 | 7 | |
| no2chem | 0:c162b0b96146 | 8 | #ifndef MBED_TICKCOUNT_H |
| no2chem | 0:c162b0b96146 | 9 | #define MBED_TICKCOUNT_H |
| no2chem | 0:c162b0b96146 | 10 | extern volatile unsigned int TickCount; |
| no2chem | 0:c162b0b96146 | 11 | |
| no2chem | 0:c162b0b96146 | 12 | inline void GetTickCount_Start(void) { |
| no2chem | 0:c162b0b96146 | 13 | //CMSIS SYSTICK Config |
| no2chem | 0:c162b0b96146 | 14 | SysTick_Config(SystemCoreClock / 100); /* Generate interrupt every 10 ms */ |
| no2chem | 0:c162b0b96146 | 15 | } |
| no2chem | 0:c162b0b96146 | 16 | |
| no2chem | 0:c162b0b96146 | 17 | inline void GetTickCount_Stop(void) { |
| no2chem | 0:c162b0b96146 | 18 | SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (0<<SYSTICK_ENABLE) | (0<<SYSTICK_TICKINT); /* Disable SysTick IRQ and SysTick Timer */ |
| no2chem | 0:c162b0b96146 | 19 | } |
| no2chem | 0:c162b0b96146 | 20 | |
| no2chem | 0:c162b0b96146 | 21 | inline void GetTickCount_Reset(void) { |
| no2chem | 0:c162b0b96146 | 22 | SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (0<<SYSTICK_ENABLE) | (0<<SYSTICK_TICKINT); /* Disable SysTick IRQ and SysTick Timer */ |
| no2chem | 0:c162b0b96146 | 23 | TickCount = 0; |
| no2chem | 0:c162b0b96146 | 24 | SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (1<<SYSTICK_ENABLE) | (1<<SYSTICK_TICKINT); /* Enable SysTick IRQ and SysTick Timer */ |
| no2chem | 0:c162b0b96146 | 25 | } |
| no2chem | 0:c162b0b96146 | 26 | |
| no2chem | 0:c162b0b96146 | 27 | inline unsigned int GetTickCount(void) |
| no2chem | 0:c162b0b96146 | 28 | { |
| no2chem | 0:c162b0b96146 | 29 | return TickCount; |
| no2chem | 0:c162b0b96146 | 30 | } |
| no2chem | 0:c162b0b96146 | 31 | #endif |