Search found 11 matches

A search here would find quite a bit about this.

'Faster'?. Fastest, would be direct connection to the PIC, but implementing a block I/O device (effectively a 'disk' type storage, rather than a RS2 ...

Hi everybody
I want to connect a PIC micro-controller to PC and send data.
I think I have to way to run this: first use USB PIC such a 18f4550, second use a chip like Ft232.
I don't know which one ...

I mean PIC's internal registers

Thanks "PCM programmer"
I have done that you suggested and my SPI worked with external interrupt very well.

You can't put any lines of code in-between the #int_ext and the start of
th ...

Thanks
I try that.

Thanks for your consideration
I had studied the example program before but I think the example program is not optimal
because they use SPI in manual method and they did not use standard codes. The s ...

RF module : RFM12BP
manufacturer : Hoperf

Data sheet:
http://www.hoperf.com/upfile/RFM12BP.PDF

Thanks PCM programmer

I don't know why you are doing this.

I want to read data from the SPI port when external interrupt is activated. I use this for connection the PIC and Rf module. When the Rf module receives da ...

Thanks for your useful explanations again Smile

Does the RF module have a Chip Select pin on it ?

Yes it has but I connected it to GND for ever, because I use just one device.

I have another ...

Thanks for your nice consideration to this matter. My circuit worked very well and the microcontroller sent the data on SPI successfully.

As you said me several points, I changed them. But I still ...

Hi
I have a problem with SPI like this.
It doesn't work well, it sometimes send data and the others no!

Transmitter code:

#include <18f452.h>
#use delay(clock=12000000)
#FUSE ...