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I think yerpa is right. Maybe it is a bit "resource consuming"..but with one PWM, one Timer and some code you're probably done: use a timer and every timer interrupt you increment two tables ...

Hi, maybe this can help you (look at the first post in this thread)
http://www.ccsinfo.com/forum/viewtopic.php?t=33495

Now is ok; this is the working code:

#include <18F24K20.h>
#device adc=8
#FUSES NOWDT, HS, NOPROTECT, NOBROWNOUT, NOPUT, NOCPD, STVREN
#FUSES NODEBUG, NOLVP, NOWRT, NOWRTD, IESO, FCMEN, NO ...

Hi,
I am testing the fast CRC16 algorithm, the two functions never return the same result also initializing the variable MyCRC to 0xFFFF, where I mistake ?
Here my test code:

#include <18F24K2 ...

I have inverted the CRC low byte <-> high byte order (the CRC16.uByte index). Now C function and assembly function return the same CRC16 value:

//--------------------------------------------- ...

Post modified because of erroneous consideration.

Now I have understood. In the assembly crc16 function the line of code:

rlcf Index,W // use rlf for PIC16
rlcf Index,W ...

Ttelmah, thanks. I think I have found the mistake that I did.
For "cast" I meant to say... to pass a signed int32 to a signed int8. I believe that using the three assembly instructions all ...

Hi, I am in trouble to understanding how to make to work this example. Can anyone explain to me how to cast (if possible) signed variables ? Thanks

Claudio

#include <16F877.H>
#fuses XT ...

PCM programmer solution would seem the most logical but unfortunately in this case, the compiler does not handle non-aligned bit field (variables larger than 8 bits). Is really problematic as it seems ...

Thanks PCM programmer I tried but I do not think I can solve my problem that way; the compiler generates an error "Number of bits is out of range".
I can not use 8 bits (int8) variables bec ...

I know I have been unclear... but please... there is someone who could give a quick look at the ADF7021 datasheet (from page 47) and recommend how to manage the data of that sixteen registers in my PI ...

This is my "driver", I do not use SPI because it is used for radio data transfer.

// **** Costant declaration (example only) *****

// ADF7021 Register value
...

Hi, I am working on firmware in which device ADF7021(Analog device) is used. Seen the relative complexity of subdivision of the bits of the many registries of the device (16), according to you what is ...

Hi, I just made a simulation (on proteus) and it work good. I see always on the TX line a high level between the chars (about 6 ms from start edge to next start edge).

This is the test code:

#in ...

I do not understand why CCS has made so little flexibility in the management of the hardware UART.
My advice is to write yourself your "UART driver management" because ccs does not offer a ...