Post by badboy1985ro on Nov 23, 2008 0:45:51 GMT 7
I read that the cpu of the thecus n1200 can be overcloked. Is there a tutorial on how to do this? I have connected using the serial console and stoped the boot proces but? What are the uboot commands and how do i do it?
You can go to www.freescale.com and download the mpc8349 BSP. There are several BSPs, pick the mpc8349e-mitx-20070221.iso, would be good enough. Loop mount (or by Win Daemon) and read the BSP UG under the doc folder. There are example to modify the core freq under u-boot. Have fun and good luck. Once, as I posted before, the original heatsink sucks. You may refer to my previous post to improve the heat dissipation of the CPU.
Post by badboy1985ro on Dec 3, 2008 17:42:41 GMT 7
Thanks alot. I will be hacking my thecus this wekend. One more think. If i "manage" to brick my board, is there a way to debtick it? A utility or something? like on the linksys wrt54gl wich has a jtag?
WAIT !! That is an example, not your real setting. The board is an evaluation board called 8349-mITX. It core freq is 533Mhz. Your box is N1200, the core freq is 266MHz. My N1200 is deep inside my storage room, I don't want to hook up the serial port.
1st of all, check where is the flash, may check FE000000. Then check where is the HRCW. Since the flash should be organized by a 8 bit device, so you may note that same 8 bit would repeat 4 times at a 32 bit boundary. CCB is 266MHz, then CORE/CCB=1:1. So the 8 bit word is 02 (23 at this example). You need to change it to 23.
Post by badboy1985ro on Dec 4, 2008 14:53:02 GMT 7
Thanks for the info. I will post the output Friday night. I don't wanna do anything wrong. Thanks again. Can you please tell me what is the height of the hit sink you use. Also what firmware did u use on your thecus. I am searching an alternate firmware for a few month now. Something open source like OpenWrt so i can install different applications.
My heatsink is 11~12mm high, I guess 13 mm would be better. I use the conductive paste to fill the gap between heatsink and the case. I don't re-flash the N1200. My opinion of using OpenWRT is unleashing the hidden features of the box, such as the USB port for non memory device. I have a ASUS WL-HDD reflashed with OpenWRT, I can hook up a USB webcam, but I lost the GUI.
After you installed the 8349 BSP, you can cross-compile any small utilites such as full boom busybox or no-ip client, or even some device drivers. I don't see any big advantage to reflash it. You may also build the native compiler inside the box, and some utilties that prohibited at cross-compilation may get compiled.
Post by badboy1985ro on Jan 15, 2009 3:17:03 GMT 7
thanks for everything. After a few days of googling i understand all that stuff. I do have one more question. Whi not changing the ccp to 333 Mhz also and adding extra cooling to the ram chips? and all the other chips on the board?
Is this a cooling problem or the board just dosen't support it?
The CSB (internal bus) runs at 266MHz. The granularity of the CPU PLL is 0.5 times in step. Therefore, the next frequency is 266 x 1.5 = 400MHz. You may try 533MHz, but I suggest you need high rpm fan 1st !!