Matthias
373a8c32b2
git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@55 9fe90eed-be63-e94b-8204-d34ff4c2ff93
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/*************************************************************************
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*
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* Used with ICCARM and AARM.
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*
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* (c) Copyright IAR Systems 2006
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*
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* File name : clock-arch.c
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* Description : Implementation of architecture-specific clock functionality
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*
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* History :
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* 1. Date : October 4, 2006
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* Author : Stanimir Bonev
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* Description : Create
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*
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* $Revision: 1.1.2.3 $
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**************************************************************************/
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#include "LPC23xx.h"
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#include "clock-arch.h"
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#include "ethernet.h"
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volatile clock_time_t Ticks;
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/*************************************************************************
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* Function Name: Tim0Handler
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* Parameters: none
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*
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* Return: none
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*
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* Description: Timer 0 interrupt handler
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*
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*************************************************************************/
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static
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void Timer1IntrHandler (void)
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{
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++Ticks;
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// T0IR_bit.MR0INT = 1;
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T1IR |= (1 << 1);
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VICIRQStatus = 0;
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}
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/*************************************************************************
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* Function Name: clock_init
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* Parameters: Int32U IntrPriority
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*
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* Return: none
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*
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* Description: Timer init
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*
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*************************************************************************/
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void clock_init(Int32U IntrPriority)
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{
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Ticks = 0;
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// Init Time0
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// PCONP_bit.PCTIM0 = 1;
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PCONP |= (1 << 2); /* Enable Timer 1 CLK */
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// T0TCR_bit.CE = 0;
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T1TCR &=~(1 << 0); /* Disable Counter 1 */
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// T0TCR_bit.CR = 1;
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T1TCR |= (1 << 1); /* Reset Counter 1 */
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// T0TCR_bit.CR = 0;
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T1TCR &=~(1 << 1); /* Relase Reset on Counter 1 */
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// T0CTCR_bit.CTM = 0;
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T1CTCR &=~(1 << 0) &~(1 << 1); /* Mode: every rising PCLK edge */
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// T0MCR_bit.MR0I = 1;
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T1MCR |= (1 << 3); /* Enable Interrupt on MR1 */
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// T0MCR_bit.MR0R = 1;
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T1MCR |= (1 << 4); /* Enable reset on MR1 */
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// T0MCR_bit.MR0S = 0;
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T1MCR &=~(1 << 5); /* Disable stop on MR1 */
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T1PR = 0; /* set timer 1 period */
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T1MR0 = SYS_GetFpclk(TIMER0_PCLK_OFFSET)/(TICK_PER_SEC);
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// init timer 0 interrupt
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// T0IR_bit.MR0INT = 1;
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T1IR |= (1 << 1); /* clear pending interrupt */
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VIC_SetVectoredIRQ(Timer1IntrHandler,IntrPriority,VIC_CHAN_NUM_Timer1);
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VICIntEnable |= 1UL << VIC_CHAN_NUM_Timer1;
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// T0TCR_bit.CE = 1;
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T1TCR |= (1 << 0); /* Enable Counter */
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}
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/*************************************************************************
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* Function Name: clock_init
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* Parameters: none
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*
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* Return: none
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*
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* Description: The current clock time, measured in system ticks
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*
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*************************************************************************/
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clock_time_t clock_time(void)
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{
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return(Ticks);
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}
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