AnsweredAssumed Answered

KEA128 48MHz with external resonator

Question asked by Hani Samara on Jan 22, 2019
Latest reply on Jan 23, 2019 by Mark Butcher

Hello, 

 

i would like to get 48MHz core frequency and 24MHz Bus frequency in FEE Mode. But if i am using an 8 MHz crystal i just get 40 MHz and 20 MHz. Which crystal and which RDIV i need to get 48 MHz and 24 MHz? i do not think that i could find something like 9,6/9,9MHz Crystal on the market?

 

the OSC frequency must be in the range 31.25 kHz to 39.0625 kHz. So if i have 39.0625KHz then after FLL (x1280) i will get 50MHz on the ICS output!! But KEA128 can max. 48MHZ!! 

 

how to solve this?

 

thanks in advance,

Hani

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