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Can the PIC18LF6680 achieve 1M Baud CAN rate when supplyed from 3.3V? Oscillator 20MHz
Has anybody got working CAN using a 3.3V PIC ?

I have got my software configured for 1Mbps and it works fi ...

I have noticed, a lot of people in this forum recomend using FRAM.
If I am looking for a fast external memory (not necessarily non volatile) about 128Mbytes capacity, would it be better to consider t ...

I want to send some data(hex file produced by buld from an application) to the bootloader and see it is programming the program memory and running the application (the hex file).
I have opened the he ...

Okay, how do you expect people to help when they assume that you are using CCS compiler!?!?! Mad

Why are you asking these questions on the Microchip forum? Good luck and maybe someone else will w ...

Are you using the CCS compiler? I get an error if I try unsigned but otherwise it compiles just fine.

Actually C18 at the moment

Try declaring
unsigned float getAvStepsPerMm(void)

as
float getAvStepsPerMm(void)

already tried

I have got a definition of the following union:
extern union unionFloat
{
float fl;
unsigned char cha[4];
};
extern union unionFloat AvStepsPerMm;
extern union unionFloat AvStepsPerMm_inv ...

You don't need a pointer to the union if you are just trying to pass and address

writeSFlash(4,unionFloat.cha);
writeSFlash(4,&unionFloat.cha[0]);
writeSFlash( ...

Thank you for the help Mark.
I think I have found the way to do it

writeSFlash(0x04,(unsigned char *)ptr_uFloat);

writeSFlash(sizeof(ptr_unionFloat->cha),ptr_unionFloat->cha);

Mark, I can't change it, because this function is called a lot and addresses of variables and arrays are pass ...

and how is the other function declared?

extern void writeSFlash(uchar noBytes, uchar *sfData);

I pass the pointer to another function like so: ptr_uFloat->fl
I get the error: Error [1146] type mismatch in argument 2

I need to pass the address of the value in the uFloat.fl

Right,
and how to use it?
I mean, I want to point to the UNION_FLOAT.fl

I have got the following union:

extern union unionFloat
{
float fl;
unsigned char cha[4];
};

How to make a pointer to it and how to use it?
Thank you

Has anybody got to recommend a good Embedded Systems book.
I am not new in embedded stuff, but I need a deeper understanding of how embedded systems work(NOT for the beginner, but advanced)