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Hello all,

I realize this post hasnt seen any action in a few years, but I thought this would be the best place to ask my question.

I am using the PIC24FJ16GA002 and as the previous poster state ...

Thanks for the help guys. I now have another question maybe one of you can help me with. I have a pic set up as a slave device on the line and a separate device acting as the master. I am using the sp ...

So the master would receive an interrupt saying there is data available in the slave's register and at that point the master would do a in=spi_read() and would the slave do a spi_write(data) or would ...

Can someone point me to an example of a master device sending data then waiting some time before the slave sends a response back to the master?

treitmey,

thank you much!

I am looking to create a string terminated with a carriage return that I can then send over a SPI transfer. How do I create this string?

Thank you very much for your time. Hopefully we can continue this topic at a later time.

negative. still garbage.

this is the change:

while(!spi_data_is_in())
{
}
for (i=0;i<COMMANDLENGTH;i++)
{
xferdata[i]=spi_read();
}

but still the same results. I am able to send a single bi ...

correction. removing the tris and fast_io on the master side works as well but the rest is still true.

After removing the fast_io on the slave side, the problem still exists. I am forced to leave the tris set up on the master side because the pins are not set correctly to the hardware spi definition fr ...

master:

#include <18F4550.h>
#nolist
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN,NOBROWNOUT,MCLR
#use delay(clock=48000000)
#use FAST_IO(A)
#u ...

I made the corrections and no change, I am still receiving garbage in xferdata despite having the correct data to be read on the pins.

Hi,
I am having a problem reading in multiple bytes of data from the master PIC.

master code:

void main()
{
const char data[9]={"pl_10000"};
se ...