Steve Church

MC9s08JM32 clock initialisation

Discussion created by Steve Church on Jun 11, 2009
Latest reply on Jun 12, 2009 by Steve Church

I have just decided to use the JM32 device because of its 24MHz max bus speed and 12 bit A/D, having used the 9S08RE16 device before. I am having problems understanding how to achieve this maximum bus speed. When I was selecting the device I thought it was just a simple job of running off a 48MHz crystal! Can someone point me in the right direction here. I wish to use an external crystal and have all internal processes working off 24MHz. I have tried using Device Initialiser within Codewarrior but to no avail.