AN254 - Cirrus Logic

AN254 Booting Windows CE Using RedBoot from a Windows Based Host PC

AN254 www.DataSheet4U.com Booting Windows CE using RedBoot from a Windows Based Host PC by Gerry Vahe 1. PURPOSE This application note will discuss a non-native way to load Windows CE® onto the Cirrus Logic EDB9312 development board. Traditionally, to load a Windows CE image onto a hardware platform such as the EDB9312 requires that the host PC have Platf.

Features

that most other SOC processors don't have. It has an internal BootROM (masked in the silicon, unchangeable by the user) that performs the functions that a boot loader performs. While this is an outstanding feature, the BootROM needs to make certain assumptions in order to be functional in most situations. For example, the memory interface is set to less than optimal speed. More importantly, the PLL is set for EXTERNAL 1:1 mode. In most systems, this means that the EP9312 would run at about 14 MHz. This is where the RedBoot boot loader comes in. RedBoot configures the optimum settings for the t.