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#include "SWM221.h"
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void SerialInit(void);
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int main(void)
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{
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ADC_InitStructure ADC_initStruct;
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ADC_SEQ_InitStructure ADC_SEQ_initStruct;
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SystemInit();
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SerialInit();
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/* 使能温度传感器，温度传感器连接 ADC0 的 CH9
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* 温度传感器输出电压随温度变化的趋势为7mV/度
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* 具体的 ADC 读数与温度换算关系，可根据公式：y = kx + b
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* 带入两个已知温度和其对应 ADC 读数，，计算出 k 和 b
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******************************************************/
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SYS->TEMPCR |= SYS_TEMPCR_EN_Msk;
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ADC_initStruct.clkdiv = 4;
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ADC_initStruct.refsrc = ADC_REF_VDD;
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ADC_initStruct.samplAvg = ADC_AVG_SAMPLE1;
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ADC_Init(ADC0, &ADC_initStruct);
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ADC_SEQ_initStruct.trig_src = ADC_TRIGGER_SW;
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ADC_SEQ_initStruct.samp_tim = 6;
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ADC_SEQ_initStruct.conv_cnt = 1;
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ADC_SEQ_initStruct.EOCIntEn = 0;
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ADC_SEQ_initStruct.channels = (uint8_t []){ ADC_CH9, 0xF };
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ADC_SEQ_Init(ADC0, ADC_SEQ0, &ADC_SEQ_initStruct);
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ADC_Open(ADC0);
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while(1==1)
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{
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ADC_Start(ADC_SEQ0, 0);
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while(ADC_Busy(ADC0)) __NOP();
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printf("%4d,", ADC_Read(ADC0, ADC_CH9));
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}
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}
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void SerialInit(void)
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{
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UART_InitStructure UART_initStruct;
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PORT_Init(PORTA, PIN0, PORTA_PIN0_UART0_RX, 1); //GPIOA.0配置为UART0 RXD
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PORT_Init(PORTA, PIN1, PORTA_PIN1_UART0_TX, 0); //GPIOA.1配置为UART0 TXD
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UART_initStruct.Baudrate = 57600;
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UART_initStruct.DataBits = UART_DATA_8BIT;
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UART_initStruct.Parity = UART_PARITY_NONE;
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UART_initStruct.StopBits = UART_STOP_1BIT;
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UART_initStruct.RXThreshold = 3;
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UART_initStruct.RXThresholdIEn = 0;
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UART_initStruct.TXThreshold = 3;
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UART_initStruct.TXThresholdIEn = 0;
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UART_initStruct.TimeoutTime = 10;
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UART_initStruct.TimeoutIEn = 0;
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UART_Init(UART0, &UART_initStruct);
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UART_Open(UART0);
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}
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/******************************************************************************************************************************************
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* 函数名称: fputc()
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* 功能说明: printf()使用此函数完成实际的串口打印动作
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* 输 入: int ch 要打印的字符
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* FILE *f 文件句柄
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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int fputc(int ch, FILE *f)
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{
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UART_WriteByte(UART0, ch);
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while(UART_IsTXBusy(UART0));
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return ch;
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}
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