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led counter rewritten, with emphasis on periodic timer setup

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This commit is contained in:
matthias.ringwald@gmail.com 2013-01-15 15:05:03 +00:00
parent 67cfe3ed6b
commit 98b411a61f
1 changed files with 32 additions and 18 deletions
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50
MSP-EXP430F5438-CC256x/example/led_counter.c
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@ -22,30 +22,40 @@
#define HEARTBEAT_PERIOD_MS 1000
static void heartbeat_handler(struct timer *ts){
static int counter = 0;
static timer_source_t heartbeat;
static void run_loop_register_timer(timer_source_t *timer, uint16_t period){
run_loop_set_timer(timer, period);
run_loop_add_timer(timer);
}
static void timer_handler(timer_source_t *ts){
// increment counter
static int counter = 0;
char lineBuffer[30];
sprintf(lineBuffer, "BTstack counter %04u\n\r", ++counter);
printf(lineBuffer);
// toggle LED
LED_PORT_OUT = LED_PORT_OUT ^ LED_2;
run_loop_set_timer(ts, HEARTBEAT_PERIOD_MS);
run_loop_add_timer(ts);
// re-register timer
run_loop_register_timer(ts, HEARTBEAT_PERIOD_MS);
}
// main
int main(void)
{
static void timer_setup(){
// set one-shot timer
heartbeat.process = &timer_handler;
run_loop_register_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
}
static void hw_setup(){
// stop watchdog timer
WDTCTL = WDTPW + WDTHOLD;
//Initialize clock and peripherals
halBoardInit();
halBoardStartXT1();
halBoardStartXT1();
halBoardSetSystemClock(SYSCLK_16MHZ);
// init debug UART
@ -54,16 +64,20 @@ int main(void)
// init LEDs
LED_PORT_OUT |= LED_1 | LED_2;
LED_PORT_DIR |= LED_1 | LED_2;
/// GET STARTED with BTstack ///
btstack_memory_init();
}
static void btstack_setup(){
/// GET STARTED with BTstack ///
btstack_memory_init();
run_loop_init(RUN_LOOP_EMBEDDED);
// set one-shot timer
timer_source_t heartbeat;
heartbeat.process = &heartbeat_handler;
run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
run_loop_add_timer(&heartbeat);
}
// main
int main(void)
{
hw_setup();
btstack_setup();
timer_setup();
printf("Run...\n\r");