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#include "SWM221.h"
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void SerialInit(void);
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void TestSignal(void);
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int main(void)
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{
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SystemInit();
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SerialInit();
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TestSignal();
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PORT_Init(PORTB, PIN4, PORTB_PIN4_HALL_IN0, 1); //连接PA9
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PORT_Init(PORTB, PIN5, PORTB_PIN5_HALL_IN1, 1); //连接PA10
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PORT_Init(PORTB, PIN6, PORTB_PIN6_HALL_IN2, 1); //连接PA11
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PORTB->PULLU |= ((1 << PIN4) | (1 << PIN5) | (1 << PIN6));
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TIMR_Init(TIMR0, TIMR_MODE_TIMER, CyclesPerUs, 2000000, 1); //2秒钟未检测到HALL输入变化，触发超时中断
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TIMRG->HALLEN = 1;
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TIMRG->HALLIF = 7;
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TIMRG->HALLIE = 1;
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NVIC_EnableIRQ(HALL_IRQn);
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TIMR_Start(TIMR0);
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while(1==1)
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{
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}
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}
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void HALL_Handler(void)
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{
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TIMRG->HALLIF = 7;
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printf("%dus\r\n", TIMRG->HALLDR);
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}
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void TIMR0_Handler(void)
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{
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TIMR0->IF = (1 << TIMR_IF_TO_Pos);
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printf("HALL Time-out\r\n");
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}
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void TestSignal(void)
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{
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GPIO_Init(GPIOA, PIN9, 1, 0, 0, 0);
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GPIO_Init(GPIOA, PIN10, 1, 0, 0, 0);
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GPIO_Init(GPIOA, PIN11, 1, 0, 0, 0);
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TIMR_Init(TIMR1, TIMR_MODE_TIMER, CyclesPerUs, 100000, 1);
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TIMR_Start(TIMR1);
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}
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void TIMR1_Handler(void)
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{
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static uint32_t setp = 0;
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TIMR1->IF = (1 << TIMR_IF_TO_Pos);
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switch(setp++)
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{
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case 0: GPIO_SetBit(GPIOA, PIN9); break;
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case 1: GPIO_SetBit(GPIOA, PIN10); break;
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case 2: GPIO_SetBit(GPIOA, PIN11); break;
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case 3: GPIO_ClrBit(GPIOA, PIN9); break;
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case 4: GPIO_ClrBit(GPIOA, PIN10); break;
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case 5: GPIO_ClrBit(GPIOA, PIN11); setp = 0; break;
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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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