sprintf函数如何输出多个十六进制数

归一尘 · 发表于 2019-8-13 17:33:46

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usbd_hid_core.h"
#include "usbd_usr.h"
#include "usbd_desc.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "stdio.h"
#include "key.h"

#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment = 4
  #endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN USB_OTG_CORE_HANDLE  USB_OTG_dev __ALIGN_END;

uint8_t Buffer[65];
uint8_t MyBuffer[65]={1,2};

int main(void)
{
u16 i,j,key;
u16 FirstCommand,SecondCommand,ThirdCommand;
u16 Length;
char a[250];

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168);    //初始化延时函数
uart_init(115200);    //初始化串口波特率为115200
LED_Init();    //初始化LED
LCD_Init();    //LCD初始化
KEY_Init();    //按键初始化
//配置USB HID
USBD_Init(&USB_OTG_dev,
USB_OTG_FS_CORE_ID,
&USR_desc,
&USBD_HID_cb,
&USR_cb);
delay_ms(10);

POINT_COLOR=RED;
while(1)
{
DCD_EP_PrepareRx(&USB_OTG_dev,HID_OUT_EP,Buffer,64);//准备接收数据  PC端发送指令连续且小于64位
if(UsbHidReceiveComplete==1)
{
UsbHidReceiveComplete=0;
//USBD_HID_SendReport (&USB_OTG_dev, Buffer, 64);
Length=sizeof(Buffer);
for(i=0;i<Length;i++)
{
   MyBuffer[i]=Buffer[i];
   j=i;//第一个空白字符位置
   if (Buffer[i]==' ')
               break;

}

sprintf(a,"%#X",(uint8_t)Buffer[0]);
LCD_ShowString(30,70,240,16,16,(u8*)a);
   if(Buffer !=MyBuffer)
   LCD_Fill(30,70,240,210+16,WHITE);
   LCD_ShowString(30,70,240,16,16,(u8*)a);
   if((Buffer[0]=='S')&(Buffer[1]=='S')&(Buffer[j-1]=='P')&(Buffer[j-2]=='P')&(j>=6))
{
   if (j>=6)
      FirstCommand=(Buffer[2]-0x30)*10+(Buffer[3]-0x30);
   if (j>=8)
   SecondCommand=(Buffer[4]-0x30)*10+(Buffer[5]-0x30);
   if (j>=10)
    ThirdCommand=(Buffer[6]-0x30)*10+(Buffer[7]-0x30);
   switch(FirstCommand)
   {
   case 1

ED0=0;USBD_HID_SendReport (&USB_OTG_dev,"Led0 is on!\r", 64);
if (SecondCommand==1)
{ LED1=0;USBD_HID_SendReport (&USB_OTG_dev,"Led1 is on!\r\n", 64);}
if (SecondCommand==2)
{LED1=1;USBD_HID_SendReport (&USB_OTG_dev,"Led1 is off!\r\n", 64);}
break;
case 2

ED0=1;USBD_HID_SendReport (&USB_OTG_dev,"Led0 is off!\r", 64);
if (SecondCommand==1)
   {LED1=0;USBD_HID_SendReport (&USB_OTG_dev,"Led1 is on!\r\n", 64);}
if (SecondCommand==2)
   {LED1=1;USBD_HID_SendReport (&USB_OTG_dev,"Led1 is off!\r\n", 64);}
break;
   default:USBD_HID_SendReport (&USB_OTG_dev,"Command is out range!\r\n", 64);break;
   }

}
else
USBD_HID_SendReport (&USB_OTG_dev,"Command is out range!\r\n", 64);
}

key=KEY_Scan(0);
      if(key)
{
   switch(key)
   {
   case KEY0_PRES:USBD_HID_SendReport (&USB_OTG_dev,"KEY0 is press!\r\n", 64);;break;
   case KEY1_PRES:USBD_HID_SendReport (&USB_OTG_dev,"KEY1 is press!\r\n", 64);;break;
   case KEY2_PRES:USBD_HID_SendReport (&USB_OTG_dev,"KEY2 is press!\r\n", 64);;break;
   case WKUP_PRES:USBD_HID_SendReport (&USB_OTG_dev,"WKUP is press!\r\n", 64);;break;
   }
}

delay_us(1000);
}

}

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
以上为代码，现在给STM32发送数据时，屏幕上只能显示第一组数的十六进制，我想要显示多组的，应该如何修改，希望各位大神指教~