1. Upgrade EFM32 driver libraries (CMSIS and efm32lib) to version 2.3.0 (from version 2.2.2)
2. Add EFM32GG-DK3750 development kit support (driver version 1.2.1)
3. Add giant gecko (EFM32GG) support
4. Add LEUART module driver (max 9600bsp)
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1839 bbd45198-f89e-11dd-88c7-29a3b14d5316
1. Change the usage of the second parameter of Read and Write functions in IIC driver
- to "Slave address" from (seldom used) "Offset"
2. Add a timer for IIC driver to prevent from forever waiting
3. Add digital (IIC) interface support for accelerometer driver (Freescale MMA7455L)
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1678 bbd45198-f89e-11dd-88c7-29a3b14d5316