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[moxart/moxart_timer] Div clock by 8

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Signed-off-by: Anton D. Kachalov <mouse@yandex-team.ru>
This commit is contained in:
Anton D. Kachalov 2015-07-27 17:24:15 +03:00
parent 46c8885814
commit 7f28335f81
1 changed files with 3 additions and 8 deletions
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11
arch/arm/src/moxart/moxart_timer.c
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@ -39,9 +39,11 @@
#include <stdio.h>
#include <stdint.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <arch/board/board.h>
#include "arm.h"
#include "up_arch.h"
#define TM1_ADDR 0x98400000
@ -82,29 +84,22 @@ enum timer_int {
*
************************************************************/
uint32_t inside = 0;
static uint32_t cmp = BOARD_32KOSC_FREQUENCY / 1000;
static uint32_t cmp = BOARD_32KOSC_FREQUENCY * 8 / 1000;
int up_timerisr(int irq, uint32_t *regs)
{
uint32_t state;
inside++;
/* Process timer interrupt */
state = getreg32(TM1_ADDR + INTR_STATE_TIMER);
state &= ~0x7;
putreg32(state, TM1_ADDR + INTR_STATE_TIMER);
// *(volatile int *)0x98700000 ^= 0x8;
*(volatile int *)0x98700000 |= 0x2;
/* Ready for the next interrupt */
cmp = BOARD_32KOSC_FREQUENCY / 1000;
putreg32(cmp, TM1_ADDR + COUNTER_TIMER);
sched_process_timer();
*(volatile int *)0x98700000 &= ~0x2;
return 0;
}