PushButton.cpp

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00033 
00034 #include "PushButton.h"
00035 #include "Peripherals.h"
00036 
00037 extern MAX30001 max30001;
00038 extern uint32_t global_key_judge;
00039 extern int current_log_number;
00040 
00041 PushButton::PushButton(PinName pin) : interruptButton(pin) {
00042   this->pin = pin;
00043 
00044   interruptButton.mode(PullUp);
00045   debouncingState = false;
00046   // Delay for initial pullup to take effect
00047   wait(0.01f);
00048   // Attach the address of the interrupt handler routine for pushbutton
00049   interruptButton.fall(callback(this, &PushButton::pb_hit_interrupt_fall));
00050 }
00051 
00052 bool PushButton::GetButtonFallState(void) { 
00053  return buttonFallState; 
00054 }
00055 
00056 void PushButton::SetButtonFallState(bool state) { 
00057  buttonFallState = state; 
00058 }
00059 
00060 void PushButton::clearButtonFallState(void) { 
00061  buttonFallState = false; 
00062 }
00063 
00064 int PushButton::Read(void) { 
00065  return interruptButton.read(); 
00066 }
00067 
00068 void PushButton::pb_hit_interrupt_fall(void) {
00069     /* switch debouncing */
00070     if (!debouncingState)
00071     {
00072         timeout.attach(callback(this, &PushButton::pb_debounce_timeout), debounceTime);
00073     }
00074     
00075     if ( global_key_judge&0x01 == 1 )
00076     {
00077         max30001.max30001_BIOZ_InitStart(0b1, 0b0, 0b0, 0b00, 
00078                                         0b00, 0b00, 7, 0b0,
00079                                         0b010, 0b0, 0b00, 0b00, 0b00, 
00080                                         2, 0b0, 0b011, 0b0000, 0b0000);
00081         max30001.max30001_synch();
00082         
00083         /*
00084         printf("global_key_judge = %d\n", global_key_judge);
00085         FILE *fp_index = fopen("/sd/index.txt", "r+");
00086         int index_number = 0;
00087         int err = fscanf(fp_index, "%d", &index_number);
00088         printf("Scan err = %d\n", err);
00089         index_number += 1;
00090         err = fprintf(fp_index, "%d\n", index_number);
00091         printf("err = %d\n", err);
00092         printf("index_number = %d\n", index_number);
00093         printf("Start Sampling \n");
00094         printf("index_number = %d \n", index_number);
00095         fclose(fp_index);
00096         */
00097         printf("Save to Bioz_%d.txt", current_log_number);
00098         current_log_number += 1;
00099         wait_ms(200);
00100     }
00101     else
00102     {
00103         max30001.max30001_Stop_ECG();
00104         max30001.max30001_Stop_PACE();
00105         max30001.max30001_Stop_BIOZ();
00106         max30001.max30001_Stop_RtoR();
00107         printf("Stop Sampling \n");
00108         wait_ms(200);
00109     }
00110     
00111     global_key_judge += 1;
00112 
00113     
00114     //max30001.max30001_ECG_InitStart(0b1, 0b1, 0b1, 0b0, 0b10, 0b11, 0x1F, 0b00,
00115     //                               0b00, 0b0, 0b01);
00116 }
00117 
00118 void PushButton::pb_debounce_timeout(void) {
00119     if (!interruptButton.read())
00120     {
00121         if (Peripherals::pushButton() != NULL){
00122             Peripherals::pushButton()->SetButtonFallState(true);
00123         }
00124     }
00125     debouncingState = false;
00126 }
00127