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bf609 multi- loading problems , SPI start and MEMORY starts.

Question asked by qian on Aug 2, 2013
Latest reply on Aug 19, 2013 by qian

Hi,

 

I am using the chip is bf609.

The default startup mode SPI FLASH.

 

initCode and after zlib compression ldr files are stored in the SPI FLASH .

initCode contains SPI FLASH read and write, and zlib decompression .

When starting from SPI FLASH and enter initcode,initcode reading stored in the SPI FLASH the APP.ldr.zlib file.

Then decompress and put the decompressed data stored in the DDR .

 

 

Finally call the function rom_Boot(). Start from the DDR .

Call the function :

rom_Boot(appAddressL3,0,0,0,ENUM_ROM_BCMD_DEVICE_MEMORY | ENUM_ROM_BCMD_DEVENUM_0| ENUM_ROM_BCMD_MEM_SMCBANK_0 ,0);

The program can be started.

 

 

But I have some questions .

APP.LDR.ZLIB also need to include a initCode file to start properly.(Here initCode not contain FLASH literacy and decompression)

I do not have to figure out there's boot process . Why app.ldr also need to include a initCode file? 

SPI FLASH startup has already been performed initCode.

 

 

Thank you.

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