Diff: TPM_init.cpp

Revision:

0:7ac9830cbaa5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TPM_init.cpp	Wed Mar 12 06:32:33 2014 +0000
@@ -0,0 +1,43 @@
+#include "TPM_init.h"
+
+void TPM0_init(unsigned int modulo_val, unsigned int prescale_val){
+
+    SIM->SOPT2 |= SIM_SOPT2_PLLFLLSEL_MASK;
+    SIM->SOPT2 &= ~(SIM_SOPT2_TPMSRC_MASK);
+    SIM->SOPT2 |= SIM_SOPT2_TPMSRC(1);
+        
+    SIM->SCGC6 |= SIM_SCGC6_TPM0_MASK;
+    
+    //Set all bits to zero
+    TPM0->SC = 0x0;
+        
+    //Reset COUNT value to zero
+    TPM0->CNT = 0x0;
+    
+    //Set modulo value
+    TPM0->MOD = modulo_val;
+    
+    //Set prescale value
+    TPM0->SC |= prescale_val;
+    
+    //Enable overflow interrupt
+    TPM0->SC |= TPM_SC_TOIE_MASK;
+}
+
+unsigned int TPM0_SC_read() {
+    unsigned int SC_value = TPM0->SC;
+    return SC_value;
+}
+unsigned int TPM0_CNT_read() {
+    unsigned int CNT_value = TPM0->CNT;
+    return CNT_value;
+}
+
+void TPM0_clear_overflow() {
+    TPM0->SC |= TPM_SC_TOF_MASK;
+}
+
+void TPM0_start() {   
+    
+    TPM0->SC |= TPM_SC_CMOD(1);
+}
\ No newline at end of file