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Clocking SPC570

Question asked by david tomsa on Aug 11, 2017
Latest reply on Aug 21, 2017 by Erwan Y

Hi,

 

i have a Problem with the Clock Configuration of the SPC570 µC (SPC570S-DISP). I just want to use the External Clock (crystal).

 

my Configuration:

CGM_SC_DC0/CGM_SC_DC1/CGM_SC_DC2 are set to 0x80000000

AC0_SC/AC1_SC/AC2_SC/AC3_SC are set to 0x01000000

My Problem is, i divide the SPI Clock with:

AC0_DC3 = 0x80310000

According to the Reference Manual, the Spi Clock should be 400kHz (40Mhz Crystal / 50 / 2), but it's 200kHz. 

 

Could anyone tell me where my issue could be ?

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