PCD Bootloader and application from other compiler

[WalkOver]

Hello,

I would like to implement a serial bootloader to an application compiled with another compiler ( MikroC from MikroElektronika ).

I tried to compile the CCS bootloader exemple for my target MCU ( dsPIC33EP512MU810 ) and it works like a charm with a program compiled with CCS ( and the directive #include <pcd_bootloader.h> at the top of my code ).

But now, I would like to load a program compiled with MikroC and I have two issues.

1- the first one is with a simple test program compiled with MikroC, there is an error at the end of the downloading process " output buffer too small for block".
It is an error I don't have with a test program compiled with CCS.

2- I have to relocate the code compiled with MikroC to avoid overwriting the bootloader but I don't know how to ( org/orgall directive ? ) and how to compute the right address ?

Any help is welcome

[WalkOver]

Hello again,

I printed out the variable "APPLICATION_START" computed by the pcd_bootloader program and it return "4096" or 0x1000

So I used the directive "#pragma orgall 0x1000" on the top of my program compiled by MikroC. The directive works well because I can see that the reallocation is working with my programmer software.

But I still have the exact same issues described in the first post

[dyeatman]

Hi, You may not find anyone here versed in Mikro C. I have their compiler but rarely use it. Most of mine is done in CCS.

I would recommend using their discussion groups or contact Mikro tech Support.

One of the outstanding things about CCS is their user support group. Many of
the other compilers don't have such an active (or experienced/proficient)User
Group
_________________
Google and Forum Search are some of your best tools!!!!

[WalkOver]

This why I migrated from MikroC to CCS

My third problem is my very low level of programming knowledge.

I have a program under mikroC that I can't convert under CCS ( because of my low level knowledge....and it is working well on MikroC ).

Just want to add a serial bootloader. On the MikroC forum, I will have the same reaction as you, address me to the CCS forum

[Ttelmah]

I'd suspect you have actually fixed your #2 error with orgall. The remaining
problem is the hex output format being used. It sounds as if MikroC is actually
generating long lines in the hex output. You would need to go through the
manuals and see if there are any options to limit the line length being sent.
I think you will find there is an option in MikroC to select standard Intel
Hex, or Long Intel Hex. This needs to be set to standard to be compatible
with the bootloader.
One alternative I have used in a similar situation, is to take the output
file, and run hex2bin, then on the output file from this run bin2mot (you
need to download both of these). This then converts the file to 'standard'
Intel Hex format.

[WalkOver]

Hello, thank you for your help

I have to dig a bit more.

There are options in the output settings of MikroC compiler but "long hex format" wasn't checked.

I tried with and without this setting but I still have the issue.
I tried with hex2bin and mot2bin but I definitely need to specify parameters.

hex2bin seems to working well but I have error during mot2bin conversion

[Ttelmah]

try hex2bin then bin2hex.
Remembering what tools I used is hard sometimes!.

[asmallri]