/*---------------------------------------------------------------------------------------------------------*/
/* */
/* Copyright(c) 2015 Nuvoton Technology Corp. All rights reserved. */
/* */
/*---------------------------------------------------------------------------------------------------------*/
//***********************************************************************************************************
// Nuvoton Technoledge Corp.
// Website: http://www.nuvoton.com
// E-Mail : MicroC-8bit@nuvoton.com
// Date : Sep/1/2015
//***********************************************************************************************************
//***********************************************************************************************************
// File Function: N76E616 ADC demo code
//***********************************************************************************************************
#include <stdio.h>
#include "N76E616.h"
#include "Version.h"
#include "Typedef.h"
#include "Define.h"
#include "SFR_Macro.h"
#include "Common.h"
#include "Delay.h"
/*
//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
//
//<e0> System Clock Source Configuration
// <o1> System Clock Source Selection
// <0=> 2~16MHz XTAL
// <1=> 32.768KHz XTAL
// <2=> 11.0592MHz Internal
// <3=> 10KHz Internal
// <4=> OSC-In External
//</e>
//
//<e2> Clock Divider Configuration
// <o3.0..7> System Clock Source Devider <1-255:1>
// <i> Fsys = (System Clock Source) / (2 * Devider)
//</e>
//
//<h> ADC Option
// <o4.0..3> ADC Pin Selection
// <0=> AIN0 (P00) <1=> AIN1 (P01) <2=> AIN2 (P02) <3=> AIN3 (P03)
// <4=> AIN4 (P04) <5=> AIN5 (P05) <6=> AIN6 (P06) <7=> AIN7 (P07)
// <8=> AIN8 (P26) <9=> AIN9 (P20) <10=> Band-Gap
//
// <o5.0..2> ADC Divider Selection
// <0=> Fsys/1 <1=> Fsys/2 <2=> Fsys/4 <3=> Fsys/8
// <4=> Fsys/16 <5=> Fsys/32 <6=> Fsys/64 <7=> Fsys/128
//
//</h>
//
//-------- <<< end of configuration section >>> ------------------------------
*/
#define SYS_CLK_EN 0
#define SYS_SEL 2
#define SYS_DIV_EN 0 //0: Fsys=Fosc, 1: Fsys = Fosc/(2*CKDIV)
#define SYS_DIV 1
#define ADC_PIN 0
#define ADC_DIV 2
bit BIT_TMP;
/******************************************************************************
* FUNCTION_PURPOSE: ADC interrupt Service Routine
******************************************************************************/
void ADC_ISR (void) interrupt 11
{
clr_ADCF; //clear ADC interrupt flag
}
/******************************************************************************
* FUNCTION_PURPOSE: ADC Pin Select
******************************************************************************/
void ADC_Pin_Select (void)
{
#if ADC_PIN == 0 //P0.0
ADCCON0 = 0x00; //select ADC pin
set_P0M1_0; //set ADC pin is input only mode
clr_P0M2_0;
set_P00DIDS; //disable digital connection
#elif ADC_PIN == 1 //P0.1
ADCCON0 = 0x01; //select ADC pin
set_P0M1_1; //set ADC pin is input only mode
clr_P0M2_1;
set_P01DIDS; //disable digital connection
#elif ADC_PIN == 2 //P0.2
ADCCON0 = 0x02; //select ADC pin
set_P0M1_2; //set ADC pin is input only mode
clr_P0M2_2;
set_P02DIDS; //disable digital connection
#elif ADC_PIN == 3 //P0.3
ADCCON0 = 0x03; //select ADC pin
set_P0M1_3; //set ADC pin is input only mode
clr_P0M2_3;
set_P03DIDS; //disable digital connection
#elif ADC_PIN == 4 //P0.4
ADCCON0 = 0x04; //select ADC pin
set_P0M1_4; //set ADC pin is input only mode
clr_P0M2_4;
set_P04DIDS; //disable digital connection
#elif ADC_PIN == 5 //P0.5
ADCCON0 = 0x05; //select ADC pin
set_P0M1_5; //set ADC pin is input only mode
clr_P0M2_5;
set_P05DIDS; //disable digital connection
#elif ADC_PIN == 6 //P0.6
ADCCON0 = 0x06; //select ADC pin
set_P0M1_6; //set ADC pin is input only mode
clr_P0M2_6;
set_P06DIDS; //disable digital connection
#elif ADC_PIN == 7 //P0.7
ADCCON0 = 0x07; //select ADC pin
set_P0M1_7; //set ADC pin is input only mode
clr_P0M2_7;
set_P07DIDS; //disable digital connection
#elif ADC_PIN == 8 //P2.6
ADCCON0 = 0x08; //select ADC pin
set_P2M1_6; //set ADC pin is input only mode
clr_P2M2_6;
set_P26DIDS; //disable digital connection
#elif ADC_PIN == 9 //P2.0
ADCCON0 = 0x09; //select ADC pin
set_P2M1_0; //set ADC pin is input only mode
clr_P2M2_0;
set_P20DIDS; //disable digital connection
#else
ADCCON0 |= 0x0F; //band-gap 1.25V
#endif
}
/******************************************************************************
* FUNCTION_PURPOSE: ADC Clock Divider Select
******************************************************************************/
void ADC_DIV_Select (void)
{
#if ADC_DIV == 0
clr_ADCDIV2;
clr_ADCDIV1;
clr_ADCDIV0;
#elif ADC_DIV == 1
clr_ADCDIV2;
clr_ADCDIV1;
set_ADCDIV0;
#elif ADC_DIV == 2 //Default
clr_ADCDIV2;
set_ADCDIV1;
clr_ADCDIV0;
#elif ADC_DIV == 3
clr_ADCDIV2;
set_ADCDIV1;
set_ADCDIV0;
#elif ADC_DIV == 4
clr_ADCDIV2;
clr_ADCDIV1;
set_ADCDIV0;
#elif ADC_DIV == 5
set_ADCDIV2;
clr_ADCDIV1;
clr_ADCDIV0;
#elif ADC_DIV == 6
set_ADCDIV2;
clr_ADCDIV1;
set_ADCDIV0;
#elif ADC_DIV == 7
set_ADCDIV2;
set_ADCDIV1;
clr_ADCDIV0;
#elif ADC_DIV == 8
set_ADCDIV2;
set_ADCDIV1;
set_ADCDIV0;
#endif
}
/******************************************************************************
* FUNCTION_PURPOSE: ADC Initial
******************************************************************************/
void ADC_Initial (void)
{
set_ADCEN;
ADC_Pin_Select(); //Select ADC Pin
ADC_DIV_Select(); //Set ADC Clock Divider
}
/******************************************************************************
The main C function. Program execution starts
here after stack initialization.
******************************************************************************/
void main (void)
{
UINT8 i;
/* Note
MCU power on system clock is HIRC (11.0592MHz), so Fsys = 11.0592MHz
*/
Set_All_GPIO_Quasi_Mode();
#if DEBUG_PORT == 0
InitialUART0_Timer1_Type1(9600); /* 9600 Baud Rate*/
#elif DEBUG_PORT == 1
InitialUART1_Timer3(9600); /* 9600 Baud Rate*/
#endif
Show_FW_Version_Number_To_PC();
printf ("\n*===================================================================");
printf ("\n* Name: N76E616 ADC Demo Code.");
printf ("\n*===================================================================\n");
/* Change system closk source */
#if SYS_CLK_EN == 1
#if SYS_SEL == 0
System_Clock_Select(E_HXTEN); //Fosc = 2~16MHz XTAL
#elif SYS_SEL == 1
System_Clock_Select(E_LXTEN); //Fosc = 32.768KHz XTAL
#elif SYS_SEL == 2
System_Clock_Select(E_HIRCEN); //Fosc = 11.0592MHz Internal RC
#elif SYS_SEL == 3
System_Clock_Select(E_LIRCEN); //Fosc = 10KHz Internal RC
#elif SYS_SEL == 4
System_Clock_Select(E_OSCEN); //Fosc = OSC-In External OSC
#endif
#endif
#if SYS_DIV_EN == 1
CKDIV = SYS_DIV; //Fsys = Fosc / (2* CLKDIV) = Fcpu
#endif
for(i=0;i<3;i++)
{
P02 = 0;
Timer0_Delay1ms(200);
P02 = 1;
Timer0_Delay1ms(200);
}
ADC_Initial();
while(1)
{
clr_ADCF;
set_ADCS; //Trigger ADC start conversion
#if 0 //Polling
while(ADCF == 0);
ADCF = 0;
#else //Interrupt
EADC = 1;
EA = 1;
set_IDLE; //Enter idle mode
#endif
printf ("\n* ADC conver value = %d",(UINT16)ADCRH);
Timer0_Delay1ms(100);
}
}
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