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i m not getting sck clock from lpc2378 fpr spi

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Author
ganesh badgujar
Posted
8-Jan-2009 05:48 GMT
Toolset
ARM
New! i m not getting sck clock from lpc2378 fpr spi

respected sir
this is my code

int main (void)
{
SYS_TargetResetInit();
PCONP |= (1 << 8);
/* by default, it's enabled already, for safety reason */
PINSEL0 |= 0xC0000000;
PINSEL1 |= 0x0000003C;

S0SPCCR = 0x8;

S0SPCR = 0x000;
}

void SYS_TargetResetInit(void)
{
SCS |= 0x20;
/* Enable main OSC */
while( !(SCS & 0x40) );
/* Wait until main OSC is usable */
CLKSRCSEL = 0x1;
/* select main OSC, 12MHz, as the PLL clock source */
PCLKSEL0 = 0x55555555;
/* PCLK is the same as CCLK */
PCLKSEL1 = 0x55555555;
SYS_GPIOResetInit();
}
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Author
Nathan Duffy
Posted
8-Jan-2009 15:42 GMT
Toolset
ARM
New! RE: i m not getting sck clock from lpc2378 fpr spi

I don't have the data sheet for your processor in front of me, but S0SPCCR is clock control register? S0SPCR is control register?

Where do you write to the data register?

You're not going to get clock pulses if you are not writing data.

ND

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Author
ganesh badgujar
Posted
9-Jan-2009 06:52 GMT
Toolset
ARM
New! RE: i m not getting sck clock from lpc2378 fpr spi

yes S0SPCCR is clock control register
i use SOSPDR to WRITE the data

then also I am not going to get clock pulses

i given 12mz to procesor and that to the peripheral iinitialise all register as per above code
but no sck getting .

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Author
D. S.
Posted
8-Jan-2009 17:40 GMT
Toolset
ARM
New! RE: i m not getting sck clock from lpc2378 fpr spi

Hi!

Are you sure, that you've enabled the SPI-Interface??
(PCONP-Register @ p.53 in Manual)

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