Diff: vendor/NXP/LPC1768/hal/us_ticker.c

Revision:

13:0645d8841f51

Parent:

12:5fa2273de5db

Child:

14:096882eb0961

--- a/vendor/NXP/LPC1768/hal/us_ticker.c	Wed Jul 24 11:11:21 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,64 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <stddef.h>
-#include "us_ticker_api.h"
-#include "PeripheralNames.h"
-
-#define US_TICKER_TIMER      ((LPC_TIM_TypeDef *)LPC_TIM3_BASE)
-#define US_TICKER_TIMER_IRQn TIMER3_IRQn
-
-int us_ticker_inited = 0;
-
-void us_ticker_init(void) {
-    if (us_ticker_inited) return;
-    us_ticker_inited = 1;
-    
-    LPC_SC->PCONP |= 1 << 23; // Clock TIMER_3
-    
-    US_TICKER_TIMER->CTCR = 0x0; // timer mode
-    uint32_t PCLK = SystemCoreClock / 4;
-    
-    US_TICKER_TIMER->TCR = 0x2;  // reset
-    
-    uint32_t prescale = PCLK / 1000000; // default to 1MHz (1 us ticks)
-    US_TICKER_TIMER->PR = prescale - 1;
-    US_TICKER_TIMER->TCR = 1; // enable = 1, reset = 0
-    
-    NVIC_SetVector(US_TICKER_TIMER_IRQn, (uint32_t)us_ticker_irq_handler);
-    NVIC_EnableIRQ(US_TICKER_TIMER_IRQn);
-}
-
-uint32_t us_ticker_read() {
-    if (!us_ticker_inited)
-        us_ticker_init();
-    
-    return US_TICKER_TIMER->TC;
-}
-
-void us_ticker_set_interrupt(unsigned int timestamp) {
-    // set match value
-    US_TICKER_TIMER->MR0 = timestamp;
-    // enable match interrupt
-    US_TICKER_TIMER->MCR |= 1;
-}
-
-void us_ticker_disable_interrupt(void) {
-    US_TICKER_TIMER->MCR &= ~1;
-}
-
-void us_ticker_clear_interrupt(void) {
-    US_TICKER_TIMER->IR = 1;
-}