单片机源程序如下:
/*********************************************************************
Author : J Scarlett
Date : Nov 2006
Files : main.c, display.c, ped.c
Hardware : ADuC7020
Description : Implements a simple pedometer based on application
note AN-602
*********************************************************************/
#include
// Function Prototype with required function attribute.
extern void Monitor_Function(void);
extern void Display_Init(void);
//*********************************************************************
// Main Function for ADuC7020 Pedometer
// essentially performs startup functions
//*********************************************************************
int main (void)
{
POWKEY1 = 0x01;
POWCON = 0x06; // set to 653kHz core clock
POWKEY2 = 0xF4;
REFCON = 0x2; // use external reference
// (connected to Vdd)
//*********************************************************************
// Initialize Peripherals
//*********************************************************************
// GPIO Configuration
GP4DAT = 0x04000000; // P4.2 configured as an output.
// LED is turned on
GP0CON = 0x00000000; //
GP0DAT = 0xE0000000; // 0.7, 0.6, and 0.5 are outputs
// 0.7 = E, 0.5 = R/W*, 0.6 = RS
GP1DAT = 0xFF000000; // All P1 pins are outputs
ADCCON = 0x20; // Turn ADC on but do not enable
Display_Init(); // found in file "display.c"
Monitor_Function(); // found in file "ped.c"
//*********************************************************************
// Main Loop
//*********************************************************************
while(1)
{
}
} // main()
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