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Squashed 'tmk_core/' changes from 7967731..b9e0ea0

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b9e0ea0 Merge commit '7fa9d8bdea3773d1195b04d98fcf27cf48ddd81d' as 'tool/mbed/mbed-sdk'
7fa9d8b Squashed 'tool/mbed/mbed-sdk/' content from commit 7c21ce5

git-subtree-dir: tmk_core
git-subtree-split: b9e0ea08cb940de20b3610ecdda18e9d8cd7c552
This commit is contained in:
Jun Wako 2015-04-24 16:26:14 +09:00
parent a20ef7052c
commit 1fe4406f37
4198 changed files with 2016457 additions and 0 deletions
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48
tool/mbed/mbed-sdk/libraries/tests/KL25Z/pit/main.cpp Normal file
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#include "mbed.h"
extern "C" {
volatile uint32_t msTicks;
void SysTick_Handler(void) {
msTicks++;
}
void Delay(uint32_t dlyTicks) {
uint32_t curTicks;
curTicks = msTicks;
while ((msTicks - curTicks) < dlyTicks);
}
}
int main() {
SysTick_Config(SystemCoreClock / 1000);
SIM->SCGC6 |= SIM_SCGC6_PIT_MASK; // Clock PIT
PIT->MCR = 0; // Enable PIT
// Timer 1
PIT->CHANNEL[1].LDVAL = 0xFFFFFFFF;
PIT->CHANNEL[1].TCTRL = 0x0; // Disable Interrupts
PIT->CHANNEL[1].TCTRL |= PIT_TCTRL_CHN_MASK; // Chain to timer 0
PIT->CHANNEL[1].TCTRL |= PIT_TCTRL_TEN_MASK; // Start timer 1
// Timer 2
PIT->CHANNEL[0].LDVAL = 0xFFFFFFFF;
PIT->CHANNEL[0].TCTRL = PIT_TCTRL_TEN_MASK; // Start timer 0, disable interrupts
DigitalOut led(LED_BLUE);
while (true) {
Delay(1000);
led = !led;
uint64_t ticks = (uint64_t)PIT->LTMR64H << 32;
ticks |= (uint64_t)PIT->LTMR64L;
printf("ticks: 0x%x%x\n", (uint32_t)(ticks>>32), (uint32_t)(ticks & 0xFFFFFFFF));
ticks = (~ticks) / 24;
uint32_t us = (uint32_t)(0xFFFFFFFF & ticks);
printf("us : 0x%x\n", us);
}
}