Problem in SPI communication

[bm_soe]

I 've some problem in SPI communication between two BF561 EZ

lite kit.

i've made proper connection,i.e.,SCK-SCK,

MISO-MISO,MOSI-MOSI,

PF1(slave select from master)-PF0(SPISS of Slave).

some typical values i 've used is

SPI_BAUD=85;

SPI_CTL=0x5C00(for master) (SPE,MASTER,CPOL,CPHA,TIMOD-00)

SPI_CTL=0x4C01(for slave) (SPE, Slave, CPOL, CPHA, EMISO, TIMOD-01)

interrupt ivg9 is used for both master and slave.

master continously receive and slave continously transmit 0xAA .

But data is not received properly,i.e., when slave sends

0xAA, Master receives other values like 0x55,0x0A,0xAB and other garbage type values. Sometimes it receives 0xAA.

what is the problem?

 

[bobcat1]

Hi

This might be your problem :

"MISO-MISO,MOSI-MOSI,"

connect

MISO->MOSI,

you might also heve soft problem

use demo software to cjeck it

All the best

Bobi

 

[bm_soe]

no man we can't connect like this. as for slave is transmitting so slave out and master is receiving so master in .
so MISO-MISO
and MOSI-MOSI