<html><head><style>P {margin-top:2px;margin-bottom:2px;}</style></head><body><div style="font-size:12pt; font-family:Gungsuh,AppleGothic,sans-serif;"><P>Hello , Okl4 developers. </P>
<P> </P>
<P>I have questions about okl4 1.5.2 </P>
<P> </P>
<P>I have a board with pxa255 and I got image.boot and image.elf using </P>
<P> </P>
<P>./tools/build.py machine=gumstix project=iguana wombat=true </P>
<P> </P>
<P>I downloaded image.boot to Sdram with a Jtag debugger , and excueded it , but nothing happends. same with image.elf.</P>
<P> </P>
<P>so I use </P>
<P><SPAN style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 14pt"> arm-linux-objcopy -O binary image.elf image.bin </SPAN></SPAN></P>
<P><SPAN style="FONT-SIZE: 12pt"><SPAN style="FONT-SIZE: 14pt"></SPAN> </SPAN></P>
<P> and download the image.bin to 0xa0000000 and it works , </P>
<P> </P>
<P>here is my question </P>
<P> </P>
<P>(1) what's difference between image.boot and image.elf , I think image.boot is an elf file , then why i can't just download image.boot and excute it? (of course I am using a boot program to initialize my sdram, serial and flahs etc....)</P>
<P> </P>
<P>(2) how can i change the entry point of image.elf, or image.boot ?</P>
<P> I mean, I want to flash image.bin to my flash , then using the boot program to copy it to a certain sdram address such as 0xa1000000. shall I change the mahines.py file? I remember when I using nitica l4 1.2 there is an option elf_entry= 0xa1000000 , but it doesn't work with okl4_1.5.2 , is there another option? </P>
<P> </P>
<P>any advice would be appreciated. </P>
<P> </P>
<P>Best Regards.</P></div></body></html>
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