L138 linux SPI driver - extra clocks appears

Atmeg

When I set low frequency on SPI1 (lower than 586 kHz) one extra clock appears on the SPI1_CLK pin. On a higher frequency it's disappear and clock number is normal

over 9 years ago

0 Senthilkumar Srinivasan over 9 years ago

TI__Mastermind 43660 points

Hello,

What is the frequency you configured for SPI1 and what is the frequency you are getting ?

Are you seeing any issue in the data communication ?

Regards,
Senthil

0 Atmeg over 9 years ago in reply to Senthilkumar Srinivasan

Intellectual 870 points

When I set 1 MHz and 8 clocks the result is 1 MHz and 8 clocks - ok. When I set 600 kHz the result is 625 kHz and still 8 clocks - ok. But at 500 kHz - it's 625 kHz and 9 clocks! Communication is broken in the last case, of course.

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L138 linux SPI driver - extra clocks appears