LPC844 SPI clock

[tyassin1]

Hi

I am using the LPC844 and the SDK

According to the manual it is needed to enable the clock source through the register: SPI0CLKSEL.

However I cannot find this register anywhere. Where is it possible to enable the clock for SPI0?

Thank you

[tyassin1]

Hi Alice,

OK I See. 

So it is just how the SDK is implemented. I can see in the SDK that there are dedicated I2CnCLKSEL and UARTnCLKSEL for I2C and the UART, but the SPI has to use this FCLKSEL register?

Thank you.

[Alice_Yang]

Hello tyassin1,

I also have same doubt as you , any way, it can work.

BR

Alice

[Alice_Yang · Accepted solution]

Hello tyassin1,

The register of "SPI0CLKSEL" is included in  FCLKSEL[11];

You can configuration the SPI clock through as below code in SDK:

/* Attach main clock to SPI0. */
CLOCK_Select(kSPI0_Clk_From_MainClk);

BTW, recommend you refer to the SPI demo under SDK for lpc845MAX board.

BR

Alice