stm32的USB读卡器实验源码

鲁瑶

2018-7-4 02:29:46 2970 STM32

STM32 单片机源程序：

#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "mmc_sd.h"
#include "ff.h"
#include "flash.h"
#include "exfuns.h"
#include "fattester.h"
#include "mass_mal.h"
#include "u***_lib.h"
#include "hw_config.h"
#include "u***_pwr.h"
#include "memory.h"
#include "u***_bot.h"
//ALIENTEK战舰STM32开发板实验50
//USB读卡器实验
//设置USB 连接/断线
//enable:0,断开
// 1,允许连接
void u***_port_set(u8 enable)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE); //使能PORTA时钟
if(enable)_SetCNTR(_GetCNTR()&(~(1<<1)));//退出断电模式
else
{
_SetCNTR(_GetCNTR()|(1<<1)); // 断电模式
GPIOA->CRH&=0XFFF00FFF;
GPIOA->CRH|=0X00033000;
PAout(12)=0;
}
}
int main(void)
{
u8 offline_cnt=0;
u8 tct=0;
u8 USB_STA;
u8 Divece_STA;
delay_init(); //延时函数初始化
NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
uart_init(9600); //串口初始化为9600
LED_Init(); //LED端口初始化
LCD_Init(); //初始化液晶
KEY_Init(); //按键初始化
POINT_COLOR=RED;//设置字体为蓝色
LCD_ShowString(60,50,200,16,16,"WarShip STM32");
LCD_ShowString(60,70,200,16,16,"USB Card Reader TEST");
LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(60,110,200,16,16,"2012/9/25");
SPI_Flash_Init();
if(SD_Initialize())LCD_ShowString(60,130,200,16,16,"SD Card Error!"); //检测SD卡错误
else //SD 卡正常
{
LCD_ShowString(60,130,200,16,16,"SD Card Size: MB");
Mass_Memory_Size[0]=(long long)SD_GetSectorCount()*512;//得到SD卡容量（字节），当SD卡容量超过4G的时候,需要用到两个u32来表示
Mass_Block_Size[0] =512;//因为我们在Init里面设置了SD卡的操作字节为512个,所以这里一定是512个字节.
Mass_Block_Count[0]=Mass_Memory_Size[0]/Mass_Block_Size[0];
LCD_ShowNum(164,130,Mass_Memory_Size[0]>>20,5,16); //显示SD卡容量
}
if(SPI_FLASH_TYPE!=W25Q64)LCD_ShowString(60,130,200,16,16,"W25Q64 Error!"); //检测SD卡错误
else //SPI FLASH 正常
{
Mass_Memory_Size[1]=1024*1024*6;//前6M字节
Mass_Block_Size[1] =512;//因为我们在Init里面设置了SD卡的操作字节为512个,所以这里一定是512个字节.
Mass_Block_Count[1]=Mass_Memory_Size[1]/Mass_Block_Size[1];
LCD_ShowString(60,150,200,16,16,"SPI FLASH Size:6144KB");
}
delay_ms(1800);
u***_port_set(0); //USB先断开
delay_ms(300);
u***_port_set(1); //USB再次连接
LCD_ShowString(60,170,200,16,16,"USB Connecting...");//提示SD卡已经准备了
//USB配置
USB_Interrupts_Config();
Set_USBClock();
USB_Init();
delay_ms(1800);
while(1)
{
delay_ms(1);
if(USB_STA!=USB_STATUS_REG)//状态改变了
{
LCD_Fill(60,190,240,190+16,WHITE);//清除显示
if(USB_STATUS_REG&0x01)//正在写
{
LCD_ShowString(60,190,200,16,16,"USB Writing...");//提示USB正在写入数据
}
if(USB_STATUS_REG&0x02)//正在读
{
LCD_ShowString(60,190,200,16,16,"USB Reading...");//提示USB正在读出数据
}
if(USB_STATUS_REG&0x04)LCD_ShowString(60,210,200,16,16,"USB Write Err ");//提示写入错误
else LCD_Fill(60,210,240,210+16,WHITE);//清除显示
if(USB_STATUS_REG&0x08)LCD_ShowString(60,230,200,16,16,"USB Read Err ");//提示读出错误
else LCD_Fill(60,230,240,230+16,WHITE);//清除显示
USB_STA=USB_STATUS_REG;//记录最后的状态
}
if(Divece_STA!=bDeviceState)
{
if(bDeviceState==CONFIGURED)LCD_ShowString(60,170,200,16,16,"USB Connected ");//提示USB连接已经建立
else LCD_ShowString(60,170,200,16,16,"USB DisConnected ");//提示USB被拔出了
Divece_STA=bDeviceState;
}
tct++;
if(tct==200)
{
tct=0;
LED0=!LED0;//提示系统在运行
if(USB_STATUS_REG&0x10)
{
offline_cnt=0;//USB连接了,则清除offline计数器
bDeviceState=CONFIGURED;
}else//没有得到轮询
{
offline_cnt++;
if(offline_cnt>10)bDeviceState=UNCONNECTED;//2s内没收到在线标记,代表USB被拔出了
}
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