Junaid Ahmed / test_mbed

Test mbed1.

Dependencies:   mbed-src

TPM_init.cpp@2:9f7506fa29d4, 2014-03-13 (annotated)

Committer:
mja054
Date:
Thu Mar 13 16:35:52 2014 +0000
Revision:
2:9f7506fa29d4
Parent:
0:7ac9830cbaa5 
Tested for 1ms to 10s;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mja054 0:7ac9830cbaa5 1 #include "TPM_init.h"
mja054 0:7ac9830cbaa5 2
mja054 0:7ac9830cbaa5 3 void TPM0_init(unsigned int modulo_val, unsigned int prescale_val){
mja054 0:7ac9830cbaa5 4
mja054 0:7ac9830cbaa5 5 SIM->SOPT2 |= SIM_SOPT2_PLLFLLSEL_MASK;
mja054 0:7ac9830cbaa5 6 SIM->SOPT2 &= ~(SIM_SOPT2_TPMSRC_MASK);
mja054 0:7ac9830cbaa5 7 SIM->SOPT2 |= SIM_SOPT2_TPMSRC(1);
mja054 0:7ac9830cbaa5 8
mja054 0:7ac9830cbaa5 9 SIM->SCGC6 |= SIM_SCGC6_TPM0_MASK;
mja054 0:7ac9830cbaa5 10
mja054 0:7ac9830cbaa5 11 //Set all bits to zero
mja054 0:7ac9830cbaa5 12 TPM0->SC = 0x0;
mja054 0:7ac9830cbaa5 13
mja054 0:7ac9830cbaa5 14 //Reset COUNT value to zero
mja054 0:7ac9830cbaa5 15 TPM0->CNT = 0x0;
mja054 0:7ac9830cbaa5 16
mja054 0:7ac9830cbaa5 17 //Set modulo value
mja054 0:7ac9830cbaa5 18 TPM0->MOD = modulo_val;
mja054 0:7ac9830cbaa5 19
mja054 0:7ac9830cbaa5 20 //Set prescale value
mja054 0:7ac9830cbaa5 21 TPM0->SC |= prescale_val;
mja054 0:7ac9830cbaa5 22
mja054 0:7ac9830cbaa5 23 //Enable overflow interrupt
mja054 0:7ac9830cbaa5 24 TPM0->SC |= TPM_SC_TOIE_MASK;
mja054 0:7ac9830cbaa5 25 }
mja054 0:7ac9830cbaa5 26
mja054 0:7ac9830cbaa5 27 unsigned int TPM0_SC_read() {
mja054 0:7ac9830cbaa5 28 unsigned int SC_value = TPM0->SC;
mja054 0:7ac9830cbaa5 29 return SC_value;
mja054 0:7ac9830cbaa5 30 }
mja054 0:7ac9830cbaa5 31 unsigned int TPM0_CNT_read() {
mja054 0:7ac9830cbaa5 32 unsigned int CNT_value = TPM0->CNT;
mja054 0:7ac9830cbaa5 33 return CNT_value;
mja054 0:7ac9830cbaa5 34 }
mja054 0:7ac9830cbaa5 35
mja054 0:7ac9830cbaa5 36 void TPM0_clear_overflow() {
mja054 0:7ac9830cbaa5 37 TPM0->SC |= TPM_SC_TOF_MASK;
mja054 0:7ac9830cbaa5 38 }
mja054 0:7ac9830cbaa5 39
mja054 0:7ac9830cbaa5 40 void TPM0_start() {
mja054 0:7ac9830cbaa5 41
mja054 0:7ac9830cbaa5 42 TPM0->SC |= TPM_SC_CMOD(1);
mja054 0:7ac9830cbaa5 43 }