Problem with SPI in portB

Rabbit
1

Hello Everybody,

I’m working with a Rabbit minicore RCM5700, and I’m trying to write by SPI
serial bus using the SPI.LIB library. I’m using Dynamic C version 10.44 and
it’s libraries.

I want to use PORT B as SPI port, so I have defined #define SPI_SER_B,
before include SPI.LIB, in other words, my real code is:

#define SPI_SER_B
#define SPI_CLK_DIVISOR 5
#define SPI_MASTER //we are master
#use “spi.lib”

When I write to SPI by SPIWrite function I can’t see any data in PC4 line,
but SCK line (PB0) is working properly.

I have read in SPI.LIB header:
“This library is intended for use only with the Rabbit 4000 processor.”
and I have a Rabbit 5000 processor so I think it could be a little
different, is there a new SPI library for these processors? where can I get
it?

If you had the same error as me in the past, can you help me?

Thanks in advance

Carmen

2

Has anyone seen worse documentation? Sample programs that don’t run. Each sample seems to have a different piece of the puzzle.

After spending days to get I2C to work. I’ve spent more days trying to get a simple SPI app to work.

Is there an spi.lib for the 5000 series and known good sample code?

3

Here I send you, the SPI library that works for me.

Best regards

Carmen