SPI

Rabbit
1

Hi,

Is it possible to use SPI with this kind of config ?

#define SPI_MASTER

#define DELAY 2L

#define SPI_MASTER_CS_PORT PEDR //define CS port from master to Slave (PORT E)
#define SPI_MASTER_CS_SHADOW PEDRShadow //define shadow register for CS (Master only)
#define SPI_MASTER_CS_BIT 5 //define CS bit number (PE5)

//#define SPI_SLAVE_RDY_PORT PEDR
//#define SPI_SLAVE_RDY_SHADOW PEDRShadow
#define SPI_SLAVE_RDY_BIT 2

#define SPI_SER_B
#define SPI_CLK_DIVISOR 5
#define SERB_USEPORTD

#define MESSAGE_LENGTH 7

#use “spi.lib”

#define CS_HI BitWrPortI(SPI_MASTER_CS_PORT, &SPI_MASTER_CS_SHADOW, 1,SPI_MASTER_CS_BIT)
#define CS_LO BitWrPortI(SPI_MASTER_CS_PORT, &SPI_MASTER_CS_SHADOW, 0,SPI_MASTER_CS_BIT)

2

you cant use the ports you want use as SPI, see the manuel for pin description and its alternte funtions.

3

Hello, Check the forum post
http://forums.digi.com/support/forum/viewthread_thread,10579

Check sample application (SPITEST_4000.C)that comes with the SPI libary patch. In this mentioned that how to configure SPI related macro.