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Hello,

I am currently working on an embedded project using the CCS C compiler for a PICmicro microcontroller. I've configured the system to use communication over an Ethernet network, but I'm encou ...

Your code is erasing the reset vector. Did you mean to do that?

But after loading this program, and reading back the hex file, I see it does look like my program is reporting:

:
:10A00000112233004455660077889900AABBCC0022
:10A01000DDEEFF0042FFFF ...

So we have no other option than to build slot A and slot B hexes and push correct ones on demand.

The first OS I learned on was Microware's OS-9/6809. It was fully position independent, and I t ...

OK, Ehaa..

This corrections also not enough to use ex_fat.c

I have looked at your posted schematic and there are a few issues with it. Here is a troubleshooting guide that covers these issue ...

For 99% of situations, I'd say you are right. The 1%, is the odd situation,,
where (for example), you are very restricted on space, and have just
enough room in the allocated page for the bootloade ...

You have not convinced me but maybe this is because I use common CPU boards across multiple projects. The bootloaders, once installed, stay on the board irrespective of the project / application. I wo ...

I know a thing or two about bootloaders. The question to ask yourself is why do you need a bootloader to support interrupts?

A bootloader really has a single task - to bootload an image.

Addin ...

Neglected to mention, when I rid the code of all the interrupts/etc, things run well. What I'm specifically puzzled about is why only PORT2 giving the trouble and not PORT1...

You have configured ...

I agree with Ttelmah, adding power control for the SD card which, when. idle, draws a similar current as the switch does. So virtually no power saving but the switch has added complexity to your softw ...

Ckeck your hardware again.

Check the pull-up resistor on the DO line from the card. I had an issue once where the pull up (an SMD resistor) was perfectly soldered but was open circuit. The pull-u ...

Hi,

I'm using pic18f47j53 in order to collect data in an outdoor application and store them on microsd.

All worked fine in my field test 1 month long.

When I tried 150 devices for 4 month te ...

oky, thank you.
I do not find anithing...
I know the wite is distroing the eeprom device .
that I was asking special for single bit...

There are a few things to consider, you may already have co ...

..
Would you recommend a PIC with an Ethernet Module (PIC18F97J60) or a non ethernet pic with an external ethernet controller (ENC28J60 or Wiznet W5500)?

If the CCS stack supports both the PIC18 ...

First a bit about multicast..

Multicast is a little complex as multicast addressing occurs both a the link layer (multicast MAC address) and the Network layer (IP multicast) so an IP multicast pack ...