Matrix user forums

AVR for me too ..... maybe they are different now but their architecture was very strange in the beginning. This I think was due to the fact that pics where originally programmable devices for specific things like toys and garage door openers... it then became apparent that they may be useful to bri...

Hi Sean,

That all seems fine now .... thanks

Iain

Just completed this project BUT for 1 second delays I need to program 50ms delays !!!!

Still no responce from you guys regarding this one ...... anybody listening ??????????????????????

Iain

I may be missing something here, but being new to Flowcode (and C for that matter), I am sometimes struggling to understand and find all the various C statements I can put into the C blocks. Although Flowcode is excellent on its own, the C block is an extremely important element in that it give the ...

Have had no response to this query so far .....

Is there any progress ?

Iain

I am using an ATMEGA16 with Flowcode4. When specifying an interrupt with Timer 0 you can only select timer overflow (which would create a vector at $012.) Now I am wanting to use the clear timer on compare interrupt. I am quite happy setting up all the various registers to allow this within a C bloc...

Steve, That works !!. Being new to C I am not sure about all the pragma stuff yet, so this solution suits me, but I want to understand it. So I understand that before the multiplication ended up as a 16 bit result and that would be causing a problem. So why does putting the unsigned long on the vari...

This will probably have you all laughing but I am stuck .... I need to do a calculation that needs long integers. It also involves a Flowcode variable I will call TESTNO. Now TESTNO is a defined variable in me Flowcode BUT it is only an integer (16 bit) TESTNO can never be any larger than 9999. What...

Hi Ben, Have attched piece of code to demonstrate this ..... Basically the target ATMEGA16 is set to run at 1Mhz .... This is not changed at anytime. If I set the project to 1000000 and download into the device, the LCD loads up and writes HELLO no problem but the LED flashes on and off at about 20 ...

Hi Ben,

I will recheck this and if there is still a problem I will send a sample file.

Cheers

Iain

I did a wee program with a simple 1 second delay loop and downloaded it into my ATMEGA16 device. It ran but the delay was very much longer than 1 second. I then noticed that the micro oscillator was configured for 1 Mhz and my project was set to 20Mhz .... so I changed this to 1Mhz and download agai...

Hi Ben,

Thats what I was doing .... stepping through .... even from the beginning of the program. I'll try it again with the sim speed turned back.

Iain

Just tried that and its exactly the same, gets to the end of the Read Analogues Macro and never returns to the Rampup macro !

Iain

This program assembles ok and downloads into my hardware where it seems to run fine. However if I run it in the simulator it runs to a point where it gets caught in a loop where it is sitting at the END of "READ_ANALOGUES" macro where it seems to never return back to the "RAMP_UP" program. While it ...

Hi Ben, Thanks for the reply ..... I looked through the V4 marketing sheet again, but I must admit I cannot see anything about the USB only being applicable to the PIC only ... maybe I am a bit blind !. As for posting in on the forum, I did input name & email address, so I suppose I should be grante...

I am going mad !!! ... I have purchased Flowcode 4 for AVR and have some questions (i.e it seems to have no USB support !), however I cannot get a "NEW TOPIC" button in the V4 forum. I have gone throught the "Online Resources" route as described and I am logged in and it tells me I am currently up t...

Hi Sean,

Thanks for the information ......

Iain

I am doing a program on an AVR TINY13. I also have AVR Studio installed on my P.C. and in order to be able to use my ATARISP2 USB programmer I have changed the programmer location for the Atmel STK500. This works fine BUT I cannot seem to get the normal Chip Configuration screens .... just the manua...

Hi Sean, Thanks again for the info.... I can now get a few basic statements in AVR assembler that compile ok.... such as on my example before it needs to look like this.. asm ("ldi r16,0x80"); However there is the need for labels for jumps, how to manuipulate variables set up be the C code etc etc, ...

Thanks for your explanation Sean. I now understand that the Flowcode is fairly basic in its functions regarding what is available on whichever AVR is chosen. I also understand that these shortcomings can be addressed by using the "C Block". As I mentioned I am an ASM programmer and have very little ...

Having just bought this product, I am now finding it difficult to find information on how to use certain function. Please understand that I am a seasoned assembly programmer in the AVR and though that this tool may be a quicker and better way forward. I have managed quite quickly to master all the b...

Fantastic..... All up and running now.

Thanks

I have just installed my purchased copy of Flowcode for AVR's and all is well. However I cannot get the hex file to program into the micro. The message I get is..... Launching the programmer... C:\Program Files\Matrix Multimedia\Flowcode_AVR\Tools\MX_bats\avrc.bat m8535 avrispmkii usb "Flowcode1.hex...