1. Move file, "start_gcc.S", from "libcpu/arm/cortex-m3/" to "bsp/efm32/"
2. Upgrade EFM32 driver libraries (CMSIS and efm32lib) to version 2.2.2
3. Upgrade EFM32 G2xx development kit drivers (EFM32_Gxxx_DK) to version 1.7.2 (from version 1.6.0)
4. Modify the files ("drv_usart.c" and "drv_iic.c") according to the driver libraries upgrading
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1818 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
1. Add SD card driver (SPI mode)
2. Add ELM ChaN FatFs support (Please read "Readme.txt")
- Warning: FatFs is really FAT! (35KB)
3. Upgrade EFM32 libraries (CMSIS and efm32lib) to version 2.0.0
4. Merge all of the C source code in "libcpu\arm\cortex-m3\" into "cpuport.c"
5. Merge all of the assembly source code in "libcpu\arm\cortex-m3\" into "context_gcc.S" (except "start_gcc.S")
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1525 bbd45198-f89e-11dd-88c7-29a3b14d5316
1. Update the copyright information
- 2009 => 2011
2. Add external oscillator configuration routine in "rt_hw_board_init()"
- Before, it is set by default frequency, 32MHz
- Now it can be set by user specified frequency
3. Add ADC and ACMP (analog comparator) drivers
4. Clarify the MCU and target board define in "rtconfig.py"
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1296 bbd45198-f89e-11dd-88c7-29a3b14d5316