Set up 48MHz clock CC2640

Diego Aguirre Garcia

Other Parts Discussed in Thread: CC2640

Hello!

The default clock source for CC2640 is 24MHz clock, how I can change to 48 MHz clock? I have a custom board with BM10 module. I tried changing SET_CCFG_MODE_CONF_XOSC_FREQ to 0x2 but I think that I have to do something more. Anyone can help me? thank you!

over 9 years ago

0 Fredrik K over 9 years ago

TI__Guru** 106705 points

Hi Diego,

What are you actually trying to do? The CC2640 only supports 24MHz crystals. The system clock however, is always set to 48 MHz.

Cheers,
Fredrik

0 Diego Aguirre Garcia over 9 years ago in reply to Fredrik K

Prodigy 100 points

Thank you for your answer Fredrik, I understood wrong, I thought that by default the system clock was 24MHz. I have an EPD display connected to the spi bus with a bit rate of 12MHz and I would like to encrease it , so the maximun spi rate is 12MHz with a clock of 48MHz?

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Set up 48MHz clock CC2640