RTT+STM32+FreeModbus+Master
1.Port FreeModbus1.6 and RT-Thread1.1.1 to STM32F103.
2.Support 3 IDE : Eclipse ,Keil ,IAR.
3.Version control use git.
4.Modbus supports almost all of the functions.
5.Request for the application offers a variety of modes, the user can choose to block or non-blocking mode,
5.Add readme file for chinese.The English readme file will come soon.