Search found 16 matches

I almost forgot..

The PIC Project Wizard only puts in the fixed_io option when you make the selection to do so. In doing this you forgot to mention one output pin.

The problem was that when I wa ...

Ckielstra

Honestly I wasnt angry. Only I felt that you were angry because I asked over and over again the same thing. On the contrary, the more I can learn from the users of this forum and make me ...

Ckielstra

Few weeks ago I started to LEARN to use both compiler tool as working with PICS, so I'm not perfect and Im still learning. Also my English is not perfect and not nearly to be, therefore, ...

All right. I'm a little confused.

1) Yes, my first code works and the second code dont work.

The problem is here: #use FIXED_IO( B_outputs=PIN_B4)

As PCM said, Im setting ONLY B4 as outp ...

If I delete #use FIXED_IO( B_outputs=PIN_B4 ), by default B4 and B5 will be defined as outputs? or I need to define them previously as outputs??

Also, an extra dummy question:

Why when I ch ...

ENABLE PIN is just a 5V signal to power up the Slave (TRF7970A's Vin).

TRF7970A_SS is the Chip Select Signal for SPI purposes.

Both, should be defined as Outputs.

Hi Ttelmah.

You mean I'm setting as B4 as an output, and NOT B5, right?

Regards!

Hi guys! Thanks PCM and Ckielstra for both answers.

Second Question: PIC sends the clock signal (SPI CLK - 2Mhz) only while It's sending/reading data from the SPI? I'm asking this because when I tr ...

Hello there? Sad

Any help/hint?

Thanks in advance

CCS PCM C Compiler, Version 4.140d, 1 10-may-13 16:57
Compiler operating in Evaluation Mode

Hi again PCM!

This week, I was testing the code for the TRF7970A's IC and I have 3 questions for you.

I tested 2 codes that I copy below:

FIRST CODE (From your previous code):

#include ...

Hi PCM!

I am totally grateful to you.. Thank you so much and I'm glad that there are still people who kindly help those that are starting programming and learning about electronic.

Tomorrow I'l ...

Oh, I'm sorry. Is an TRF7970A.

Is an multiprotocol Fully Integrated 13,56 MHz RFID/NFC IC.

I want to make it work ONLY as an NFC Card-Tag Emulator.

To do that i need:

1) Initialize SPI wi ...

Yes, it brings the .LST file. Thank you so much again for your help.

One last thing. I'm trying to understand spi_xfer functionality. In older versions of CCS, it used spi_write and spi_read to m ...

Thank you so much PCM programmer for your quickly reply!

I can see the value that the compiler puts into SSPCON in "C/ASM List" buttom right?