Hi,
I now have compiled C code running happily on the E3 but only in SRAM, for some reason the SDRAM isn't happy on my phone at the moment.
I guess now I can spend more time learning about OMAP and peripherals instead of assembler.
Any progress on u-boot/Linux? I tried but its beyond me at the moment.
Regards, Mark.
On 31 Jan 2006, at 02:54, mark wrote:
Hi,
I now have compiled C code running happily on the E3 but only in SRAM, for some reason the SDRAM isn't happy on my phone at the moment.
You need to set up the clocks and make sure the PLLs have stabilized before you write to SDRAM. The clock tree starts in the UPLD, so you need that to be set up right. You also need to set up the SDRC registers correctly. OMAP will do refresh cycles and all that jazz for you, so no need to worry about that as long as the SDRC regs are set up right.
-J.
Jasmine Strong wrote:
On 31 Jan 2006, at 02:54, mark wrote:
Hi,
I now have compiled C code running happily on the E3 but only in SRAM, for some reason the SDRAM isn't happy on my phone at the moment.
You need to set up the clocks and make sure the PLLs have stabilized before you write to SDRAM. The clock tree starts in the UPLD, so you need that to be set up right. You also need to set up the SDRC registers correctly. OMAP will do refresh cycles and all that jazz for you, so no need to worry about that as long as the SDRC regs are set up right.
-J.
e3-hacking mailing list e3-hacking@earth.li http://www.earth.li/cgi-bin/mailman/listinfo/e3-hacking
Thanks for the info,
I'll search some documentation out today and have a look.
Mark.
-
Jasmine Strong -
mark