Mark,
There are some availability issues with the mcf52233, but we found some mcf52236, which appear to be pin compatible, with the only difference I can find being the 60Mhz vs 50Mhz respectively. Looking through app_hw_m5223x.h, I see there are #defines for making sure the clocks are correct, but I don't see what needs to be changed in order to use the 50Mhz clock.
Can you provide some guidance?
**reading..reading**
okay, I found these....
#define CRYSTAL_FREQ 25000000 // 25 MHz oscillator / crystal input
#define PRE_DIVIDER 5 // warning: in first silicon this can not be changed!
#define OSCCLK (CRYSTAL_FREQ / PRE_DIVIDER)
#define PLL_MUL 12 // 60MHz operation
Do I just change the PLL_MUL to 10? Are there any issues with Ethernet timing that you are aware of, when using this chip?
Thanks,
Aaron