#include "SWM320.h"

void SerialInit(void);

int main(void)
{
	ADC_InitStructure ADC_initStruct;
	PWM_InitStructure PWM_initStruct;
	
	SystemInit();
	
	SerialInit();

	GPIO_Init(GPIOA, PIN2, 1, 0, 0);
	
	PORT_Init(PORTA, PIN12, PORTA_PIN12_ADC0_IN4, 0);	//PA.12 => ADC.CH4
	PORT_Init(PORTA, PIN11, PORTA_PIN11_ADC0_IN5, 0);	//PA.11 => ADC.CH5
	PORT_Init(PORTA, PIN10, PORTA_PIN10_ADC0_IN6, 0);	//PA.10 => ADC.CH6
	PORT_Init(PORTA, PIN9,  PORTA_PIN9_ADC0_IN7,  0);	//PA.9  => ADC.CH7
	
	ADC_initStruct.clk_src = ADC_CLKSRC_VCO_DIV64;
	ADC_initStruct.clk_div = 25;
	ADC_initStruct.pga_ref = PGA_REF_INTERNAL;
	ADC_initStruct.channels = ADC_CH0;
	ADC_initStruct.samplAvg = ADC_AVG_SAMPLE1;
	ADC_initStruct.trig_src = ADC_TRIGSRC_PWM;
	ADC_initStruct.Continue = 0;						//非连续模式，即单次模式
	ADC_initStruct.EOC_IEn = ADC_CH0;	
	ADC_initStruct.OVF_IEn = 0;
	ADC_initStruct.HFULL_IEn = 0;
	ADC_initStruct.FULL_IEn = 0;
	ADC_Init(ADC0, &ADC_initStruct);					//配置ADC
	
	ADC_Open(ADC0);										//使能ADC
	
	
	
	PWM_initStruct.clk_div = PWM_CLKDIV_8;		//F_PWM = 20M/8 = 2.5M
	
	PWM_initStruct.mode = PWM_MODE_COMPL_CALIGN;//A路和B路互补中心对称输出				
	PWM_initStruct.cycleA = 10000;				//2.5M/10000 = 250Hz			
	PWM_initStruct.hdutyA =  2500;				//2500/10000 = 25%
	PWM_initStruct.deadzoneA = 50;
	PWM_initStruct.initLevelA = 1;
	PWM_initStruct.HEndAIEn = 0;
	PWM_initStruct.NCycleAIEn = 0;
	PWM_initStruct.HEndBIEn = 0;
	PWM_initStruct.NCycleBIEn = 0;
	
	PWM_Init(PWM0, &PWM_initStruct);
	
	PORT_Init(PORTA, PIN4, FUNMUX0_PWM0A_OUT, 0);
	PORT_Init(PORTA, PIN6, FUNMUX0_PWM0B_OUT, 0);
	
	PWMG->ADTRG0A = (1 << PWMG_ADTRG_EN_Pos) |
					(0 << PWMG_ADTRG_EVEN_Pos) |		//奇数周期生效
					(PWM_initStruct.hdutyA << PWMG_ADTRG_VALUE_Pos);
	
	PWM_Start(PWM0, 1, 1);
	
	while(1==1)
	{
	}
}

void ADC0_Handler(void)
{
	GPIO_InvBit(GPIOA, PIN2);
	
	ADC0->IF = (1 << ADC_IF_CH0EOC_Pos);
	
	printf("%d,", ADC_Read(ADC0, ADC_CH0));
}


void SerialInit(void)
{
	UART_InitStructure UART_initStruct;
	
	PORT_Init(PORTA, PIN2, FUNMUX0_UART0_RXD, 1);		//GPIOA.2配置为UART0输入引脚
	PORT_Init(PORTA, PIN3, FUNMUX1_UART0_TXD, 0);		//GPIOA.3配置为UART0输出引脚
 	
 	UART_initStruct.Baudrate = 57600;
	UART_initStruct.DataBits = UART_DATA_8BIT;
	UART_initStruct.Parity = UART_PARITY_NONE;
	UART_initStruct.StopBits = UART_STOP_1BIT;
	UART_initStruct.RXThresholdIEn = 0;
	UART_initStruct.TXThresholdIEn = 0;
	UART_initStruct.TimeoutIEn = 0;
 	UART_Init(UART0, &UART_initStruct);
	UART_Open(UART0);
}

/****************************************************************************************************************************************** 
* 函数名称: fputc()
* 功能说明: printf()使用此函数完成实际的串口打印动作
* 输    入: int ch		要打印的字符
*			FILE *f		文件句柄
* 输    出: 无
* 注意事项: 无
******************************************************************************************************************************************/
int fputc(int ch, FILE *f)
{
	UART_WriteByte(UART0, ch);
	
	while(UART_IsTXBusy(UART0));
 	
	return ch;
}