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I have written some code that uses a function pointer, it is assigned a value in a C language switch block and the function pointed to is called after the switch block.

The code does not compile. A ...

I am using CCS C version 5.015 IDE.

I have found that serial port has function rcv_buffer_bytes() to determine how many bytes are in the receive buffer. I am using PIC18F87K22. In the header file o ...

The interrupt routine MUST read the character.

Really? This means that if I set a flag in the interrupt and use the main subroutine to read the character (similar to using kbhit for polling), the p ...

I am only using the UART2 since I am forced to do so. UART1 of the PIC is not connected to the MAX232 chip.

Also, it seems rather unfortunate that both the UARTs are to be serviced via #INT_RDA, ve ...

I have a PIC18F MCU that has 2 EUSART inside.

I have written this code:

#include <main.h>

volatile unsigned int16 bcount = 0;
volatile bool brx = FALSE;

#INT_RDA1
void RDA_isr( ...

hmm, I thought that the #spi was for "software SPI" i.e bit-banging as it is called and setup_spi() was for hardware spi. So that is not true?

RF_Developer, if the bit_clear and I suppose ...

Oh, I thought that was intrinsic.

I am using CCS PIC C Compiler.

Here is an output from spi_write() function:

000A4: MOVFF 06,0A
000A8: MOVF FC9,W
000AA: MOVFF 06,FC9
000AE: RRCF FC7,W
000B0: BNC 00AE

I only see address values and no SFR name ...

I got the DAC to work finally. However, I was held for a while. This is my first time using SPI on the PIC in actuality. The DAC would not do anything and after looking at the waveforms by sending 0x0 ...

The DAC is MCP4801. The don't care bits must be after the data so I guess I shall have to put them this way in the struct also. See Figure 5-3 in http://ww1.microchip.com/downloads/en/DeviceDoc/22244B ...

I have used bitfields in the past but only on rare occasions. I have not tried to fully understand how to use them as I was programming in C++ and VHDL. In my present situation though I am trying to f ...

When you say that the useage has declined, does it mean it has declined specifically in CCS PIC C compiler? Why is that so?

I will write test programs and get to the bottom of this. When you say that what holds for one PIC may not hold for another, does that refer to PIC families like PIC10, PIC16, PIC18, PIC24, dsPIC e.t. ...

Both seem to be doing the same thing, so what is the difference between them since if these are 2 separate preprocessor directives, there must be things unique about them,

how does one do the following:

(1) How do I create a constant value of arbitrary bit length in this struct e.g how to have two permanent high bits between CKP and SSPEN?

(2) If the struct is not ...