Vincent Belanger / Mbed 2 deprecated APP4

APP 4

Dependencies:   mbed CRC16 mbed-rtos

APP.cpp@2:1250280a511b, 2016-02-20 (annotated)

Committer:
manl2003
Date:
Sat Feb 20 19:25:57 2016 +0000
Revision:
2:1250280a511b
Parent:
1:f212b6676849
Child:
3:3ffa14e75b8a
Allo vincent

Who changed what in which revision?

UserRevisionLine numberNew contents of line
manl2003 2:1250280a511b 1 #include "APP.h"
vinbel93 0:ac5e42371639 2
vinbel93 0:ac5e42371639 3 Serial pc(USBTX, USBRX);
vinbel93 0:ac5e42371639 4
vinbel93 0:ac5e42371639 5 int state = 0;
vinbel93 0:ac5e42371639 6 float tempsHaut = 0.4;
vinbel93 0:ac5e42371639 7 float tempsBas = 0.1;
vinbel93 0:ac5e42371639 8
vinbel93 1:f212b6676849 9 int benchmark(void (*function) (void))
vinbel93 0:ac5e42371639 10 {
vinbel93 0:ac5e42371639 11 int counter = LPC_TIM2->TC;
vinbel93 0:ac5e42371639 12 function();
vinbel93 0:ac5e42371639 13 return LPC_TIM2->TC - counter;
vinbel93 0:ac5e42371639 14 }
vinbel93 0:ac5e42371639 15
vinbel93 1:f212b6676849 16 extern "C" void TIMER2_IRQHandler()
vinbel93 0:ac5e42371639 17 {
vinbel93 0:ac5e42371639 18 if ((LPC_TIM2->IR & 0x01) == 0x01) // if MR0 interrupt, proceed
vinbel93 0:ac5e42371639 19 {
vinbel93 0:ac5e42371639 20 if (state == 0)
vinbel93 0:ac5e42371639 21 {
vinbel93 0:ac5e42371639 22 state = 1;
vinbel93 0:ac5e42371639 23 LPC_TIM2->MR0 = (int) CLOCKS_TO_SECOND * tempsHaut;
vinbel93 0:ac5e42371639 24 }
vinbel93 0:ac5e42371639 25 else if (state == 1)
vinbel93 0:ac5e42371639 26 {
vinbel93 0:ac5e42371639 27 state = 0;
vinbel93 0:ac5e42371639 28 LPC_TIM2->MR0 = (int) CLOCKS_TO_SECOND * tempsBas;
vinbel93 0:ac5e42371639 29 }
vinbel93 0:ac5e42371639 30
vinbel93 0:ac5e42371639 31 LPC_TIM2->IR |= 1 << 0; // Clear MR0 interrupt flag
vinbel93 0:ac5e42371639 32 }
vinbel93 0:ac5e42371639 33 }
vinbel93 0:ac5e42371639 34
vinbel93 1:f212b6676849 35 void initTimer()
vinbel93 0:ac5e42371639 36 {
vinbel93 0:ac5e42371639 37 LPC_SC->PCLKSEL1 |= (1 << 12); // pclk = cclk timer2
vinbel93 0:ac5e42371639 38 LPC_SC->PCONP |= (1 << 22); // timer2 power on
vinbel93 0:ac5e42371639 39 LPC_TIM2->MR0 = 9600000; // 100 msec
vinbel93 0:ac5e42371639 40 LPC_TIM2->MCR = 1; // interrupt and reset control
vinbel93 0:ac5e42371639 41 // 3 = Interrupt & reset timer2 on match
vinbel93 0:ac5e42371639 42 // 1 = Interrupt only, no reset of timer0
vinbel93 0:ac5e42371639 43 LPC_TIM2->EMR = (3 << 4); // EMC0 = 11 (Toogle)
vinbel93 0:ac5e42371639 44 NVIC_EnableIRQ(TIMER2_IRQn); // enable timer2 interrupt
vinbel93 0:ac5e42371639 45 LPC_TIM2->TCR = 1; // enable Timer2
vinbel93 0:ac5e42371639 46 }
vinbel93 0:ac5e42371639 47
vinbel93 1:f212b6676849 48 int main()
vinbel93 0:ac5e42371639 49 {
vinbel93 0:ac5e42371639 50 LPC_PINCON->PINSEL0 |= (3 << 12); // P0.6 = MAT2.0
vinbel93 0:ac5e42371639 51
vinbel93 1:f212b6676849 52 initTimer();
vinbel93 0:ac5e42371639 53
vinbel93 0:ac5e42371639 54 while(1)
vinbel93 0:ac5e42371639 55 {
vinbel93 0:ac5e42371639 56 wait(1.0);
vinbel93 0:ac5e42371639 57 }
vinbel93 0:ac5e42371639 58 }