Rapid Prototyping with 16/32 bits MCU

bmairs

Using the ADC inputs in a model generated a dsPIC_DMA_Buffers.c file that has the following line: volatile uint16_T ADCBuffChannelDMA[(2)] __attribute__((space(dma),aligned(256))); The problem with this is it can cause problems with other DMA uses if those aren't aligned to 256 as well. I can't thin...

bmairs

Nevermind, it looks as if this part is supposed by the blockset, though it's at the bottom of the list and out of order. Lubin, can you reorder the list of PICs so that they're in order? This'll make it easier to find the part you want.

bmairs

If you specify a heap size for your project in Simulink under Code Generation->DsPIC options->LDFLAGS then this same setting won't apply to the generated MPLAB 8 project and you'll need to manually specify a heap size. This means that the default project created by your blockset when a heap is speci...

bmairs

philippe.1 wrote:Could you tell me how do you do to pass your 4 variables please,

Just pack all of your variables into an array and pass that. If they're different data types pack them all into an array of uint8s, uint16s, or uint32s and unpack them on the C end.

bmairs

This kind of explains it: http://blogs.mathworks.com/seth/2011/04 ... he-coders/. But when installing I was required to add Matlab Coder in addition to these like resodad mentioned. Looks like the base requirements are: Matlab, Simulink, Simulink Coder, Embedded Coder, and Matlab Coder.

bmairs

If I build a project and it fails compilation an MPLAB 8 project is generated but NOT an MPLAB X project. I just thought it was weird that a project was generated for only one of the IDEs and not both. I figured it was a bug because you'd either want no project to be generated when compilation faile...

bmairs

This is the dsPIC33f chip included with the MicroStick development board by microchip and we have a bunch of them. It'd be nice if they worked with your blockset.

bmairs

I can't open the Interface Tx-Matlab block in 2011b. The following error occurs: Error due to multiple causes. --> Error evaluating 'OpenFcn' callback of S-Function block (mask) 'power_test/dbl-click to open Graphical interface'. --> Cannot find an exact (case-sensitive) match for 'rs232GUI'. Do you...

bmairs

Is there any possibility for this support to be added? I use busses extensively in my Simulink code and being able to pass them unmodified into the C-function call block would drastically simplify my models.

bmairs

But there isn't a similarly compiled MPLAB X project, which is why I assumed this was a bug. I'd prefer to switch over to X whenever possible, so could you also make the MPLAB X project be generated?

bmairs

If my project fails compilation then a .mcp file for MPLAB 8.x is still generated.

bmairs

It's not a show-stopper, just an inconvenience. I have a lot of functions that just need to pass 4 variables to the function and it's annoying to have to pack that small amount of data to transmit it to C. There's no way to have the C-function call block allow for an arbitrary number and size of var...

bmairs

It'd be nice if up to 6 inputs could be supported by the C-function Call Block. Not knowing how the backend works, I can't say whether this is indeed possible, but it'd be nice if it was.

bmairs

This was fixed for me in the new 3.7b release.

bmairs

So I recently went through and updated my ECAN code. I also actively use these blocks, so it's known to be good. Link is here: https://github.com/Susurrus/ECAN_dspic. Just add it to your Matlab path as another library and you're good to go.

bmairs

You'll need to add the two non-Autoboat directories to the matlab path. The actual model is in \Autoboat\Code\basic_model.

bmairs

I have version 3.66b. I'm also seeing compilation work for some other projects that I have, so it seems specific to this one.

bmairs

I recently updated my MPLAB X to 7.12 and now I get an error during compilation: The path 'C:\Program Files (x86)\Microchip\MPLABX\mplab_ide\bin\LaunchMPLAB_IDE.exe' does not exist That EXE does indeed not exist, the path 'C:\Program Files (x86)\Microchip\MPLABX\mplab_ide\bin\mplab_ide.exe' does exi...

bmairs

I'm compiling a project and the MPLAB 8.x project isn't being properly generated. I'm seeing the following at the end of code generation: " ---33fJ256GP710---" "*** Created "executable": ..\../code_gen.cof" ''pic30-bin2hex ..\../code_gen.cof "*** Converted code_gen.cof to code_gen.hex" . "*** MPLAB:...

bmairs

As title suggest. It'd be nice to have support for the dsPIC33E series of processors now too.

bmairs

Clicking the MPLAB X link within MATLAB gives me an error and doesn't launch MPLAB X. The link for launching MPLAB 8, however, is correct. Here is what I see at the end of compilation along with the errors. After compilation I clicked the MPLAB X link, then the MPLAB 8 link, then the MPLAB X link ag...

bmairs

So regarding the weird voltages I'm seeing, that's most like a board issue, but I'm not willing to debug that right now. So I've reread Section 16: Analog-to-Digital Converter of the dsPIC manual and it does appear that the pins should default to ADC input so that the digital input buffers can be di...

bmairs

I've gotten those same failures when the PICkit2 verifies the image. Try erasing the chip first and then programming, that has never failed for me.

bmairs

For the path configuration settings on Windows Vista and 7 you need to run Matlab as an administrator (right-click on the link and select Run as administrator) in order to permanently edit the path. This is a permissions issue with Windows that Mathworks hasn't fixed as of 2010a at least.

bmairs

According to another post of yours you say the following: The error comes from the multiple use of blocks that should be used only once in a model : If you are to use more that one Input Capture port, use only One block IC and configure this block to get many IC ports. Same remark for the ADC block,...

bmairs

So here's an additional model that exposes the problem also. In this model I am merely attempting to read the temperature value from the TC1047 chip that is onboard the Explorer16. If I use your ADC code, I get values that are almost exactly 1V higher than they should should. I should note that I al...

bmairs

I do imagine it's quite complex, but without this functionality larger models become very hard to maintain. Even SLUGS, which isn't that big of a codebase, is incredibly difficult to maintain. We've had to resort to using libraries, but that isn't a desirable nor complete solution to making the proj...

bmairs

That makes sense. What about adding a block just to be able to configure unused pin as either a digital input or ouptut ? Thus, you might then configure any peripheral you wish without modifying either TRIS nor ADC config registers. Yeah, I believe that's how it should be. So this would mean that t...

bmairs

It would be amazing if the TX Matlab block support floating point values, either floats or doubles. Just 32-bit floating point support would be fine to start even.

bmairs

So I did some more experimenting. It looks like I didn't have the RTW target for the submodel 'controller' set to the dsPIC. Unfortunately, even setting that to the dsPIC didn't fix it. I then added the master block, but that was still giving me errors. I'm not certain if there's anything left on my...

bmairs

I have run into a problem when compiling a project of mine when using submodels. The submodel never finishes compilation and I don't know why. I get the following errors when it tries to compile my submodel 'controller': Error: File: C:\Users\Bryant\Projects\Autoboat\Code\basic_model\slprj\dspic\con...

bmairs

Yes I believe the default status for a pin should be for it to be a Digital I/O, which really just means NOT being used as an ADC pin. If I don't select an ANx pin to read from, why should it set that pin to be an ADC pin? Was there a reason for this design originally? I believe that if a pin is set...

bmairs

If I have the ADC block within my model and build it I see the following configuration bits: AD1PCFGL = (0U); AD2PCFGL = (0U); AD1PCFGH = ((0U) & 65535); /* S-Function "dsPIC_ADC" initialization Block: <Root>/ADC Input */ /* Initialise ADC converter */ /* 0 mean each 1 conversion */ #define NoSample...

bmairs

Can the port info block be extended to include a mask where the individual pins can be manually annotated. This would be very useful for documentation. So if I was using two pins: RA0 and RA1 I could double-click on the block and the mask parameters would pop up and I could add notes about those pin...

bmairs

Is it possible for the script to both printout the time it took to compile the model as well as the time when the compilation finished?

bmairs

The MPLAB projects generated upon compilation now properly includes all of my source files and builds a debuggable build without configuring any other options. Pretty awesome! I see the following warning at the end about a tcpip file not being found. It isn't part of any sources I included in the pr...

bmairs

The code_gen.mdl file is in my Autoboat repo: https://github.com/Susurrus/Autoboat It also relies on the ecan library here: https://github.com/Susurrus/ECAN_dspic I have the projects laid out as follows: /projects /projects/Autoboat/AUTOBOAT_REPO /projects/ECAN_REPO So the autoboat repo is one level...

bmairs

This still doesn't work right. Now it just doesn't include the filepath now. I've attached the project generated upon compilation. I've also noticed that the dir_inc variable is defined incorrectly. Notice the start that is "code_gen_dspic\sourcescode_gen_dspic\sources;.;;" The include directories a...

bmairs

Is this something you intend to fix? I notice that it hasn't been fixed for the 3.4cb version and it's actually worse as both interrupts are included when you only have the UART initialization block. I think it'd be very useful for people who don't want to do the initialization by hand but want to h...

bmairs

Lubin, have you gotten a chance to check this problem out? It's made setting up various initialization calls a lot more tedious than it should be.

bmairs

If I change just those two settings I mentioned above, then the .mcp file TOOL_SETTINGS section looks as follows: [TOOL_SETTINGS] TS{7D9C6ECE-785D-44CB-BA22-17BF2E119622}= TS{25AC22BD-2378-4FDB-BFB6-7345A15512D3}= -g -O3 -fschedule-insns -fschedule-insns2 TS{7DAC9A1D-4C45-45D6-B25A-D117C74E8F5A}= -M...

bmairs

In my Simulink projects I've used relative paths to include some source files for compilation, like "..\..\..\..\..\ecan\circBuffer.c". When the MPLAB project is generated it just tacks this relative path onto the absolute path of the current working directory so I have file descriptions that look l...

bmairs

The MPLAB projects that are generated on compilation don't set up the compilation within MPLAB to allow for debugging and stepping through the code. This is generally what I want to do when I go to use MPLAB. I've found that changing the following options allow for code step-through and variable wat...

bmairs

I'm trying to use the following model to test my hardware setup for using both UARTS. Unfortunately I get an error stating "Error using ==> dsPIC_UART_RX_callback at 76\nProblem".

I've attached the model I'm using for you.

bmairs

When using infinite sampling times on initialization blocks (remembering to enable inline parameters), these blocks cannot be chained together with the block ordering input/outputs. If you do this, it only calls the final block reducing earlier blocks to zeroes. A workaround for this is to manually ...

bmairs

When I'm compiling my model, I get the following: Warning: --- =========> PORT A0 is used by at least two peripheral <========= --- > In E:\Documents and Settings\Bryant Mairs\My Documents\MATLAB\blocks\dsPIC_PortSetting.p>setTypePort at 525 In E:\Documents and Settings\Bryant Mairs\My Documents\MAT...

bmairs

Oh, it also looks like this affects the UART2 interrupts, but I would imagine this affects all interrupts generated by the blockset.

bmairs

With version 3.0 of the C30 compiler a PSV model is necessary for interrupts. If one isn't specified you get warnings like the following: dsPIC_InputCapture_Interrupt.c: In function '_IC8Interrupt': dsPIC_InputCapture_Interrupt.c:80: warning: PSV model not specified for '_IC8Interrupt'; assuming 'au...

bmairs

This bug still exists. I'd like to keep inline parameters checked as an optimization, is there anyway to fix this on your end, Lubin, or is this something that we're just going to have to deal with? Mariano did find that replicating a Mux block with an embedded Matlab block fixed the bug. I'm not ce...

bmairs

I'm looking to use the configuration block of the UART along with my own custom code for the receive and transmit interrupts. Currently the transmit interrupt is only compiled if you've added the UART TX block. This is not the case with the UART RX block, as the interrupt handler is always compiled ...

Search found 69 matches