Matrix user forums

I made a test program around a LGM12864 Longtech display with T6963C controller, but it does not show the correct things on the display. :? The display came out a working unit. After searching for answers I found a similar tread in these forums about a fix in a component macro for a GLCD display. no...

Searching for possible answers I found this topic. im also putting up a demo 4x20 LCD for a project. its the LGM12864H1 module with T6963C controller. I made up a demo program but I cant get any on the screen. The module itself came out a working unit. I added resistors to all outputs in pull down a...

Martin, i did send you an message. can you check if you received it.

well i have the receiver connected to the J1850 signal and its writing data.. not with your transmitter yet because i don't have parts for that yet. i tried to put the .x= .m[4] and .y= .m[5] in an calculation but it gives an error. im doing something wrong. Can you show me how i can have all arrays...

I realize how much work that was MArtin. this is something i wanted for years so you imagine how grateful i am! dint have time enough yesterday to get my circuit done (past midnight) and of coarse searched to long for an easy uart-usb solution i do have somewhere(but where :roll: ) anyway will get t...

looks promising Martin! i see all the terms in there. got to ask you to explain it more to me what you did. but maybe that later.. il try to figure out what connections i need to make for bus in and see if i can hook up the terminal program by UART rx tx. to show my data i think i need to do a few t...

im very eager to see what you come up with.. because i sadly cannot be of any help i guess i worked on some display for a friend. im now using a sensor to show pressure data on a 16x2 screen but if this decoder your working on is oke i can try to pick the signals from the bus too...! again i really ...

Sounds very promising... Glad you want to help ! finding all about the signal is interesting. when I see it simplified the first bit (bites 1-8)holds the arbitration for sending, so not interesting for only reading the signals. the second byte(9-16) is the header i need telling me the sort of data. ...

That works Martin. pretty close to the 200 now. I looked for the supplementary code to see how I could to change it to a shorter time for the loop I had but I saw you prepared a few definitions with timings. not sure how you want to approach this. can we measure time length of a pulse in stead of co...

Thanks Gentlemen!

Martin, il test the codes on my unit and scope to see what happens! interesting!

fully appreciate all the help and idea's!. I don't see all the deeper things you did yet but I imagine its hard to re-write something without being able to test or knowing what it does. but im deciphering the steps! I had my test stuff back and simplified the code back to the first decision . I coul...

Hi Martin, I highly appreciate your help and input! It took me evenings to get this working and its partly the fun. you might know the 'yesss' effect when you accomplish a piece of code and does what it needs to. i realize its not the best type of code but I learn from examples and what you made for...

Leigh, can you tell me if im even close with my FC i posted above?

Hi Leigh, thank you for your answer! Ah so there is where i need to put the different files!. ill certain look into that in FC7. but.. if an expert already says its missing all kind of references. i wouldn't mind putting all the time needed in finding and repairing all the links. but without the dee...

Hi, for a long time already im struggling to get this done. please any help or advice is deeply appreciated. i found an C code on line I am free to use. The files where created for, and compiled by an old version of atmel studio. what i want is to have this code converted in an c code icon so i can ...

The free on-line C code I found. I have a working very similar ELM322 pic with the program on it and it shows the data on my pc screen. Hope this code can be put anyhow in an Flowcode C icon so i can make my own digital display. Any thoughts welcome! i looked over these texts for hours and see famil...

Hi, Help.... after many attempts im lost.. I am trying to make me a simple display showing real time J1850 VPW bus data from my engine. it maybe already exist, but that is not the fun. i just want to get this working. After reading into what I could find online about this old OBD data bus and measur...

I'm not sure how well this would work but you could maybe try the Fibonacci sequence. Store the values for the sequence in a look up table component and reference the values with an incrementing or decrementing index variable. I can provide a demo of needed 8) I'm not sure if you would use the valu...

Hi Dutch! I dont know if I understand you correct, I I think you mean when the led has to ligth up, you want it more linear. I made some changes in your program. The led will ligth up fastere in the beginning and slower in the end. Hope you can see the idea in the program. You can add some more des...

I get the same error on that first link. but maybe the posted code I can open.

the second I have to see if parts work in my project. I see real pwm used while I create it with variable timings for led on and a fixed off.

Thanks for your response!

Hi Everybody, Im with fun doing all kind of simple programming and I may say I do get my programs running one way or the other. but now im stuck in something maybe not so important seeing all the harder questions here, but there must be a way. and something simple now and then makes it fun... I made...

Thanks Ben for the help !. I'm Angelo btw. I found the chip with lightning bolt but there are various step in choosing the way of programming before I got to this page I am not sure i took the right steps. sorry for the newbee questions. il make some screenshots or type some lines so see if im on th...

Benj, can you tell me what version of atmel studio you use there? I painstakingly downloaded and installed 7 and just also did install 6 after seeing some examples on youtube from an older version. I wanted to see if I could find the same screen and settings like you and than buy the AVRISP you reco...

Awesome! looks reasonable easy. had thought it would have been more complicated. see if I can get that working!

edit: exited... I know its a simple thing but this would make my weekend.!

Thank you Benj for your answer, manually wiring this up with the datasheet is no problem of coarse :D. whats new in the world of DIY hobby electronics :wink: So if I get the ISP is there any procedure or advice where or what bootloader to put on it shortning that startup time ? Thanks for any advice...