Re: standalone programmer for PIC?

From: Calvin Chan (calvin_chan_at_post1.com)
Date: 12/17/04 

Date: Fri, 17 Dec 2004 10:26:40 +0800

Byron

That means the service engineer onsite owns a copy of hex code which
we do not really want. Also, the device is installed in odd area that
bring a laptop and climb up long ladder is not a very nice way to do.

Battery driven uploader is the ultimate goal.

Rgds

Calvin
On 16 Dec 2004 12:26:58 -0500, byron@cc.gatech.edu (Byron A Jeff)
wrote:

>In article <jcs1s052kikpahm8oo0tird5kqurhvklm9@4ax.com>,
>Calvin Chan <calvin_chan@post1.com> wrote:
>-Hi Folks
>-
>-I have been looking into some sorts of portable standalone programmers
>-for PIC. The idea is for on site firmware update.
>-
>-The idea is to preload the programmer with the firmware hex code
>-(presumably the programmer is equipped with flash/eeprom to house the
>-binary code. For security reason, the hex code is not distributed),
>-and the service engineer will take the programmer to site, and plug
>-into the device to reprogram via ISP.
>-
>-Does anyone come across this type of device, or can anyone points me
>-to relevant links? Thanks
>
>If you have the right part, you can simply implement a bootloader with
>a secure protocol. It just requires a PIC that can program itself. These
>include the 16F88 in the 18 pin package, the 16F876A and 16F877A in the
>28 and 40 pin package, or any of the 18F parts.
>
>Then you wouldn't need a standalone programmer at all. Just plug a serial
>port into the chip, and run the right piece of software, and you're done.
>
>BAJ

Relevant Pages

  • Re: standalone programmer for PIC?
    ... The idea is for on site firmware update. ... > (presumably the programmer is equipped with flash/eeprom to house the ... For security reason, the hex code is not distributed), ...
    (comp.arch.embedded)
  • standalone programmer for PIC?
    ... The idea is for on site firmware update. ... The idea is to preload the programmer with the firmware hex code ...
    (comp.arch.embedded)
  • Re: standalone programmer for PIC?
    ... -I have been looking into some sorts of portable standalone programmers ... -(presumably the programmer is equipped with flash/eeprom to house the ... For security reason, the hex code is not distributed), ... Just plug a serial ...
    (comp.arch.embedded)