================ Revision history ============================================
5.0.0:
- New driver for the Si7021 Temperature/Humidity sensor.
- Updated all examples to use newlib-nano by default.
- kits/common/drivers/rtcdrv.c/h removed. Please use RTCDRV instead.
- retargetswo: BSP_TraceSwoSetup updated to calculate SWO 
  frequency based on debug clock.

4.4.0:
- Improved NORFLASH programming algorithm.

4.3.1:
- No changes.

4.3.0:
- Added driver for CPT112S TouchXpress Capacitive Touch Controller.
- Fixed bug in NORFLASH programming algorithm.
- Fixed incorrect TPIU prescaler calculation in bsp_trace.c for EFM32PG/JG.
- Deprecated kits/common/drivers/rtcdrv.c/h, which is planned to be removed in
  Gecko SDK 5.0.0. Please use emdrv/rtcdrv/src/rtcdriver.c instead.

4.2.1:
- No changes.

4.2.0:
- Fixed compiler warning in Macronix SPI flash driver.

4.1.1:
- Added driver for Macronix SPI flash.
- Added more diagnostics output in MSD host driver.
- Updated capsense driver interface to support APORT input channels
- RTCC support in display driver

4.1.0:
- No changes.

4.0.0:
- Increased robustness in MSC host driver.
- Added driver for the ksz8851snl ethernet controller.

3.20.12:
- Changes, additions and bugfixes.

3.20.9:
- General upgrade to support Happy Gecko STK.
- Support for new sensors si114x and si7013.
- Renamed i2cdrv to i2cspm.
- Updated dmactrl.c to support Zero Gecko family.
- Updated doc of udelay module (can only be used with delays < 1000 us).

3.20.5:
- Added drivers for Si1147 and Si7013 sensors.
- Optimized write speed in microsd driver.
- Increased SPI baudrate in microsd driver for targets with USART that
  supports SMSDELAY (see ref. man for further description).
- BSP_TraceSwoSetup() will no longer overwrite settings set by external debugger

3.20.3:
- Added drivers for the Si7013 and Si1147 sensors used on the sensor expansion
  board.
- Fixed bug in memory LCD driver when accessing unaligned framebuffers.

3.20.2:
- Added DISPLAY device driver, and specifically support for the Sharp Memory
  LCD (model LS013B7DH03) on the EFM32ZG_STK3200.
- Fixed bug in SWO setup.

3.20.0:
- Fixed bug in microsd driver.
- Fixed bug in segmentlcd driver.
- New functions SegmentLCD_LowerHex() and SegmentLCD_LowerNumber()in
  segmentlcd driver.
- Added MCU plugin board and board controller communication (BCC) API.
- New function BSP_BusControlModeGet().

1.0.0:
- First release
