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92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
#include <string.h>
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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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uint32_t i, res;
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char data[] = "Hi from SynWit";
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CRC_InitStructure CRC_initStruct;
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SystemInit();
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SerialInit();
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CRC_initStruct.Poly = CRC_POLY_104C11DB7;
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CRC_initStruct.init_crc = 0;
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CRC_initStruct.in_width = CRC_WIDTH_8;
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CRC_initStruct.in_rev = CRC_REV_NOT;
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CRC_initStruct.in_not = false;
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CRC_initStruct.out_rev = CRC_REV_NOT;
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CRC_initStruct.out_not = false;
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CRC_Init(CRC, &CRC_initStruct);
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for(i = 0; i < strlen("Hi from SynWit"); i++)
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CRC_Write(data[i]);
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res = CRC_Result();
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if(res == 0xC4D9CB63)
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printf("CRC Result = 0x%08X, Pass!\r\n", res);
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else
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printf("CRC Result = 0x%08X, Fail!\r\n", res);
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/* 重算一遍 */
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CRC_SetInitVal(CRC, 0);
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for(i = 0; i < strlen("Hi from SynWit"); i++)
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CRC_Write(data[i]);
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res = CRC_Result();
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if(res == 0xC4D9CB63)
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printf("CRC Result = 0x%08X, Pass!\r\n", res);
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else
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printf("CRC Result = 0x%08X, Fail!\r\n", res);
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while(1==1)
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{
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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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