/**
 ***************************************************************************************************
 * ʵ
 * ʵƣUSB⴮(SLAVE) ʵ
 * ʵƽ̨ԭ ̽F407
 * ʵĿģѧϰSTM32USB SLAVEʹ,ʵһUSB⴮ڹ

 ***************************************************************************************************
 * ӲԴŷ
 * 1 LED
     DS0RED     : LED0 - PF9
     DS1GREEN   : LED1 - PF10
 * 2 
     KEY0    - PE4
     KEY1    - PE3
     KEY2    - PE2
     KEY_UP  - PA0  (еĺ:WK_UP)
 * 3 1 (PA9/PA10ڰUSBתоƬCH340)
 * 4 ALIENTEK 2.8/3.5/4.3/7/10TFTLCDģ(MCU16λ8080)
 * 5 ⲿSRAMоƬ,ͨFSMC
 * 6 USB_SLAVEӿ(D-/D+PA11/PA12)
 
 ***************************************************************************************************
 * ʵ
 * 1 ʵSTM32ԴUSBܣӵUSB,һUSBڣʵֵԺͿͨš
     ̹ȫͬʵ4ͨʵ飩ֻڱSTM32USB⴮ڡUSBӵԣUSB
     ߲USB_SLAVEӿڣ彫ͨUSB͵Խӣһڣע⣺ҪȰװ:
     \6\1\STM32 USB⴮\VCP_V1.4.0_Setup.exe
 * 2 LED0˸ ,ʾСUSB͵ӳɹLED1

 ***************************************************************************************************
 * ע
 * 1 Զ˴ڵֲʱ115200
 * 2 ʹXCOM/SSCOMڵ,ֿܿDTR/RTSMCUλ/
 * 3 ַԻسн
 * 4 USBUSB_UART,ҵUSBתںԱ
 * 5 P10PA9/PA10ͨñRXD/TXD
 * 6 ֧̽MCU֧RGB
 * 7 4.37ҪȽϴ,USBܲ,ⲿԴ(Ƽ12V 1AԴ).
 * 8 ʵ鿪׵USBӦòUSB_SLAVEӿ
 * 9 ʵ谲װ:\6\1\STM32 USB⴮\VCP_V1.4.0_Setup.exe
 * 10 ʾװо̾ţֶѡװ·WIN7ϵͳΪ
     C:\Program Files (x86)\STMicroelectronics\Software\Virtual comport driver\Win7

 ***********************************************************************************************************
 * ˾ƣӿƼ޹˾ԭӣ
 * 绰룺020-38271790
 * 룺020-36773971
 * ˾ַwww.alientek.com
 * ַzhengdianyuanzi.tmall.com
 * ̳http://www.openedv.com/forum.php
 * ϣwww.openedv.com/docs/index.html
 *
 * Ƶwww.yuanzige.com
 * B վƵspace.bilibili.com/394620890
 *    mp.weixin.qq.com/s/y--mG3qQT8gop0VRuER9bw
 *       douyin.com/user/MS4wLjABAAAAi5E95JUBpqsW5kgMEaagtIITIl15hAJvMO8vQMV1tT6PEsw-V5HbkNLlLMkFf1Bd
 ***********************************************************************************************************
 */