20190703：
update k20dx_mimxrt1050_evk_hyper_if_crc:
 - size limit change to 16MB
 - lower flash clock speed to fix programming error bug


20180418:

Important notices for RT1050 daplink based on mk20 openSDA:

there two daplink firmware for RT1050-EVK board:
 - k20dx_evk_mimxrt_hyper_if.bin
 - k20dx_evk_mimxrt_qspi_if.bin

both firmware has same debug and uart bridge function. The only difference is on MSD drag and drop.

20dx_evk_mimxrt_hyper_if.bin drag and pull function:
1, It support on-board Micro hyper flash which is default hardware configuration for RT1050-EVK.
2. app size limit: < 4MB.
3. for FlexSPI application, RT1050 boot need configuration block data at 0x6000_0000 and IVT data at 0x6000_1000. 
for SDK version 2.3.0 or below, demo marked with ¡°xip¡±(hello_world_xip) will add those data in source code level. All other demo without ¡°xip¡± marked will not add those header data. Use need to add those data manually to make a bootable image for drag and drop function.
for SDK version 2.3.1 or above, select project option for "flexspi_nor_debug" will automatically add those data in source code level. 

20dx_evk_mimxrt_ qspi_if.bin
1, It support on-board Micro hyper flash which is need hardware re-work for RT1050-EVK.
2. app size limit: < 4MB.
3. for FlexSPI application, RT1050 boot need configuration block data at 0x6000_0000 and IVT data at 0x6000_1000. 
for SDK version 2.3.0 or below, demo marked with ¡°xip¡±(hello_world_xip) will add those data in source code level. All other demo without xip marked will not add those header data. Use need to add those data manually to make a bootable image for drag and drop function.
for SDK version 2.3.1 or above, select project option for "flexspi_nor_debug" will automatically add those data in source code level. 



20180620：
1. update k20dx_mimxrt1050_evk_qspi_if_crc.bin to support IMIXRT1050 A1 silicon.
