topic Re: CMX Stack - JM60 in 8-bit Microcontrollers

CMX Stack - JM60

UtopiaTim — Wed, 16 Apr 2008 20:27:45 GMT

Hi all,

I am using the CMX terminal demo as a method of transferring data into the PC.

I successfully got the program to do what it's supposed to with all files still in the

CMX directories as downloaded from the F'scale site.

The next thing I did was to relocate the files (still using the original CW setup),

and place them into the 'sources' directory. All worked fine.

I started a 'new project' in CW, and transferred all of the required files into the

new 'sources' directory. After fixing all of the directory related errors, I am getting

about 88 errors, mainly around a 'hcc_u8 not declared', or 'BITx not declared'.

To further debug, I have both projects open in two separate CW windows, and

have compared all setups & made sure they are the same... search paths, compiler

options, link order, etc. All appear identical.

Anybody have any ideas?

BTW, I called CMX, but they are at some show this week, so support is evidently

minimal.

Thanks,

Tim

Re: CMX Stack - JM60

JimDon — Wed, 16 Apr 2008 21:24:03 GMT

Well, don't look to CMX to solve this problem, if their code builds and works, their job is done.

I have tried that with the CMX code, and finally decided to clone the project and them mod it.

hcc_u8 is a CMX defined type for a byte I believe. Where is it defined?

Re: CMX Stack - JM60

UtopiaTim — Wed, 16 Apr 2008 21:36:27 GMT

Hi Jim,

I figured that it was a F'scale support issue, but when I talked to CMX's receptionist,

she implied that they were doing the support.

Anyhow, in the test I described, the only changes to the code I did was to reposition

the files into a different directory. (and start a new CW project)

usb.c has the following:

typedef struct {
volatile hcc_u32 tlength;
volatile hcc_u32 maxlength;
void * volatile address;
volatile usb_callback_t data_func;
hcc_u16 psize;
volatile hcc_u8 state;
volatile hcc_u8 flags;
volatile hcc_u8 error;
volatile hcc_u8 data0; /* Data toggle bit for endpoint. */
} ep_info_t;

Thanks,

Tim

Re: CMX Stack - JM60

JimDon — Wed, 16 Apr 2008 22:21:18 GMT

They will do support for issues related to how the code works, but like I said I don't think this is an issue with their code.

In which header.is this defined? Some times other things need to be defined to make other defines become visible.

Re: CMX Stack - JM60

UtopiaTim — Thu, 17 Apr 2008 02:11:07 GMT

Hi Jim,

I found this in usb_cdc.c:

/****************************************************************************
************************** Module variables ********************************
***************************************************************************/
/* Buffer long enouh to hold one USB frame. (Length equals to rx packet
size. */
static hcc_u32 rx_buffer[32/4];
static hcc_u8 rx_length;
static hcc_u8 rx_ndx;
/* Buffer long enouh to hold one USB frame. (Length equals to tx packet
size. */
static hcc_u8 *cur_tx_buffer;
static hcc_u32 tx_buffer1[32/4];
static hcc_u32 tx_buffer2[32/4];
static hcc_u8 tx_ndx;

static hcc_u8 new_line_coding;
static hcc_u8 line_coding[7] = {
FILL_LINE_CODING(115200, 0, 0, 8) /* Default is 115200 BPS and 8N1 format. */
};

static hcc_u8 ctrl_line_state;

I guess the main question is that if I have two separate CW projects, each with the identical

code located in the same relative directories, have the same link order, same compile options,

etc, why am I getting errors?

Seems that it is something in CW that I'm not finding.

Thanks,

Tim

Re: CMX Stack - JM60

CompilerGuru — Thu, 17 Apr 2008 11:02:59 GMT

Obviously something is not identical in your two projects,
what I would do is to compare the preprocessor output of a file which fails to compile with the same file in the working mcp.

Daniel

Re: CMX Stack - JM60

UtopiaTim — Thu, 17 Apr 2008 18:56:46 GMT

Hi Daniel/Jim,

Found the problem. Evidently when CMX started their project, they selected

floating point format in the wizard, as opposed to none.

When I re-did the wizard selecting the Float option, the program worked.

Now, I guess to make it work, I will also have to do my project with Floating

point selected. Wonder how much that will make it grow? Time will tell.

Thanks,

Tim

Re: CMX Stack - JM60

JimDon — Thu, 17 Apr 2008 19:14:42 GMT

If you don't use floating point, probably 0.
Can you find where they used it?

Re: CMX Stack - JM60

UtopiaTim — Thu, 17 Apr 2008 20:00:37 GMT

I've looked through all of the code, and don't find 'float'

anywhere -

I can look to see if there is any non-integer arithmetic,

but is there an easier way?

Tim

Re: CMX Stack - JM60

JimDon — Thu, 17 Apr 2008 20:14:20 GMT

Use find in files and see if there is a "float" or "double" declaration or cast anywhere.

I suppose just writing x.x could cause it.
There are certain routines that the compiler will call if you do any floating point.

Add some floating point code, then step into the code and you will see them. Then remove your test code and look in the map file to see if they still get link in.

It's really not an issue, I almost always create if a project with floating point just in case, since it is a pain to added it back later you need it. Still, I do wonder why it is that it demanded floating point.

It's not like you are almost out rom is it?

Re: CMX Stack - JM60

UtopiaTim — Thu, 17 Apr 2008 20:20:15 GMT

No, I'm only up to $b000, so I've still got a ways to go.

When I initially started, I wasn't sure how big the project

would be, so I selected 'none' in the Wizard. (based upon

the note beside it that said "select None for best code density").

I didn't plan on using any Floating Point.

I'll add some float code & try out what you suggested. Maybe

I can find it that way.

Thanks,

Tim

Re: CMX Stack - JM60

UtopiaTim — Thu, 17 Apr 2008 21:53:58 GMT

Well, for some reason, we're back to the 88 errors, even with the Float

option.

Not sure what changed.. something is quite unstable. I used it yesterday

afternoon for a couple of hours & it worked fine.

Don't ya just love these 'free' packages?!

Tim

Re: CMX Stack - JM60

CompilerGuru — Thu, 17 Apr 2008 21:55:13 GMT

Some functions like sprintf or sscanf will support float once you link against a library which is using float, so the effect might be >0, but if those functions are not used, then a 0 overhead is possible too.

Daniel

Re: CMX Stack - JM60

allawtterb — Thu, 17 Apr 2008 22:48:17 GMT

UtopiaTim wrote:
Well, for some reason, we're back to the 88 errors, even with the Float
option.

Not sure what changed.. something is quite unstable. I used it yesterday
afternoon for a couple of hours & it worked fine.

Don't ya just love these 'free' packages?!

Tim

Doing the project with floating point doesn't seem to like it should fix errors like "hcc_u8 not declared", what are the exact errors that you are getting? If the compiler is complaining about things not being declared, can you find declarations for them? I would guess something like hcc_u8 would just be a #define like:

#define hcc_u8 unsigned char

- Brett

Re: CMX Stack - JM60

JimDon — Thu, 17 Apr 2008 23:03:21 GMT

Well, I didn't want to say anything, but I found it a stretch that floating point was the problem.
Perhaps if you post the project and a zip someone will take a look at it from FSL.

Re: CMX Stack - JM60

UtopiaTim — Fri, 18 Apr 2008 00:07:45 GMT

Hi Jim,

I agree - that seemed a stretch, but look at the following:

1. Started with a clean version of the CMX terminal software

2. Pulled all source codes from their various directories & put in source.

3. Kept same .MCP as they had.

4. Modified a few places in their code which referenced other directory

entries... e.g. /../usb.c, etc.

5. Compiled fine, hardware worked fine.

- here's where it gets wierd:

Went to window where you change from hardware debug to simulator,

I got a different screen which had a lot more options than I normally see.

I selected full chip simulation. When I clicked on 'debug', a sub screen came

up asking which device I wanted to use. The JM60 wasn't on it. (I'm using 6.1

with the JM60 patch). Went back to try & use the Cyclone pro, & got same

window with 'choose device'.

OK, so I click on the icon of a chip, and the HC08 family is shown. I click on

HCS08... JM60, click on cyclone pro, & finish.

Voila, the 88 errors magically re-appear!

Think it's time to call F'scale.

Thanks,

Tim

Re: CMX Stack - JM60

JimDon — Fri, 18 Apr 2008 00:26:19 GMT

Yes, do submit a service request.
If you can attach a project and give them steps to reproduce, you will get better results.
If they try and say no troubled found, get back to us and I will try to duplicate it.

Are you saying that you switch the target to simulator and then back?
Please clarify this.

I know this is a crappy answer, but try and redo the project as before but do not switch targets.
I might be possible to export the directories page where you changed stuff then import it back.

Then, don't change to simulator again.

Message Edited by JimDon on 2008-04-17 01:27 PM

Re: CMX Stack - JM60

UtopiaTim — Fri, 18 Apr 2008 02:58:12 GMT

Hi Jim,

It's being worked as we speak. It is easy to replicate using the

CMX code that is available from F'scale.

If you get into CW with the supplied .MCP file, switch to simulator

and try to run it, a dialog box will pop up asking you to select the

MCU. Unfortunately, the JM60 isn't one of the offered selections!

It is only HC08 parts.

If you go to the chip icon to select the JM60, then it changes the

compiler command line (which in this case the software wants

a "-DUSB_CDC_TERMINAL" entry. Even if you add that, when

you compile, it gives you 88 errors.

Since I want to use this code in my project, I really need to have the

simulator option working properly.

Tim

Re: CMX Stack - JM60

bigmac — Fri, 18 Apr 2008 11:16:00 GMT

Hello Tim,

It is likely that this is completely off-track, but are you using a third-party library that may have been compiled for HC08, rather than HCS08 device?

Regards,

Mac

Re: CMX Stack - JM60

UtopiaTim — Fri, 18 Apr 2008 20:51:02 GMT

Hi Mac,

I'm just using the CMX code downloaded from the F'scale

web site. Would think that the compiler would have some

problems with non-existent references if it were trying

to compile for the wrong part. When you initially get into

the debugger, it does say S08JM60 as the target part on

the bottom of the screen.

I even did a fresh install of CW 6.1 with the JM60 patch just to

make sure that there wasn't anything funny going on.

It should be interesting to see what the real problem is.

I've also sent the folks at CMX an e-mail describing the

issues. Most are at Imbedded this week, so it will probably

have to wait till they return.

Thanks,

Tim