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On the Netduino yea I think so (I don't have the code in front of me though). And you have GND as well hooked up? It should be DATA, WR, CSx and GND (plus power of course). It's hard to troubleshoot, but triple-check your connections, it can be hard to get the pins right on the matrix, I made a few mistakes there initially. It's possible there's been some change to the firmware that made my code incompatible, I don't have my stuff available so I can test it now either (moved, everything is in boxes). Sorry I can't help you.
I've checked since yesterday, anyway thanks for your help.
I'll hook up to the arduino to check if the matrix is really ok, maybe it is broken.
Hmm that was a good suggestion to try it on my Arduino.. you can see the result below:
http://www.youtube.com/watch?v=Lmn4nZ0OKyE
I have downloaded the latest code from Miles Burton his site and as you can see it runs perfectly! strange stuff he!
Hi,
I ended up here trying to find a solution for my problem with the Green sure0832 display. I do not have a netduino though. i have an arduino Duemilanove.
I have tried every single bit of code I've been able to find, but my displays just won't work at all! not a single LED on.
Do you think you can help me out with the code you tested on the arduino? I have tried the code from Mile's burton with no luck. It just won't display anything. It's very frustrating.
Hi,
I ended up here trying to find a solution for my problem with the Green sure0832 display. I do not have a netduino though. i have an arduino Duemilanove.
I have tried every single bit of code I've been able to find, but my displays just won't work at all! not a single LED on.
Do you think you can help me out with the code you tested on the arduino? I have tried the code from Mile's burton with no luck. It just won't display anything. It's very frustrating.
Can you help?
Hi,
I was wondering if you ever found a solution to your Sure display? I am using a Netduino and a Sure2416 display (different scenario than yours) but the end result is the same: I can not even get a single led to light up regardless of what I do. I have tried the one Netduino port (it was for the HT1632 chip, the newer boards have an HT1632C chip), I have tried converting 2-3 existing C drivers I have found, and I have tried writing my own driver from scratch. All attempts to get even an led to light has failed (oh with the exception that if I manually apply power to the backs of the boards on the resistors I can get rows to light up so I at least know the leds work).
Hi... I guess, New here but an auld phart with electronics... If one placed a diode in line with the CS connection cathode to the board and anode to the display board with a resistor to Vcc 4.7K) to the anode them the CS pin would only go low when the CS line was low... Used to do that when many things needed to access one common point... (Reset).
Docedison
HI all,
I've also been playing with the LED Matrix and tried to deploy this solution on my netduino Plus. I don;t suppose anyone knows if it should work? I have the latest 4.2 version, but it won't deploy.
I have added the NetduinoPlus Reference into the project instead of the Netduino one, but nothing happening at all...well it looks like it going to deploy but fails with no error codes.
Would appreciate some help
Logicalstep
I've also been playing with the LED Matrix and tried to deploy this solution on my netduino Plus. I don;t suppose anyone knows if it should work? I have the latest 4.2 version, but it won't deploy.
I have added the NetduinoPlus Reference into the project instead of the Netduino one, but nothing happening at all...well it looks like it going to deploy but fails with no error codes.
Would appreciate some help
Logicalstep
Hi,
it should work fine, that's what I did, but I don't remember which version I used, I think I had to use a beta-version to get access to the variable SPI-functions.
Hi,
it should work fine, that's what I did, but I don't remember which version I used, I think I had to use a beta-version to get access to the variable SPI-functions.
/Hakan
I don't even seem to be able to get it into Debug. It looks like its deployed but then just sits there.
DO I need any Beta firmware as I though that 4.2 was the latest and assumed the SPI function would be in there, or I would at least be able to get it debugging...any more advise would be appreciated.
It also looks like there is alot of stuff going on there, do I need all the files that are in the project, or can I strip it down at all for debugging purposes.
I suggest you try something simpler first to get comfortable with the deployment and debugging process, try to blink a LED, set breakpoints, etc. Then you can try this code. I don't remember if you need beta or not, it was over a year ago since I did this code, and at that time I needed to get a beta build of the firmware because of the variable SPI function (standard SPI was available in the standard build). It's very likely that's available in the standard build, check these forums for details.
Hi Hauk,
Thanks for your help with this...I've just managed to get it to run in debug...just need to connect it up and test now!
I'll post back either way. Thanks for your help so far.
Logicalstep
Im curious to see if anyone has gotten this working with the 2416 using the N+2. The original code from the OP in regards to 32x8 sends commands to the 2416 just using the wrong addresses but at least proves the N+2 talks to the chip. The modified code does not do anything at the moment so im wondering if this is an issue with the N+2 since i see some users reporting SPI problems.
Thoughts?
Ryan
Im curious to see if anyone has gotten this working with the 2416 using the N+2. The original code from the OP in regards to 32x8 sends commands to the 2416 just using the wrong addresses but at least proves the N+2 talks to the chip. The modified code does not do anything at the moment so im wondering if this is an issue with the N+2 since i see some users reporting SPI problems.
Do you have a Netduino Plus (gen1) that you can test this on really quick as well? If it's something that works well on the gen1 board but not on the newer board, then we can analyze both side by side with a logic analyzer and see what's going on differently.
There is one SPI configuration option which exhibits strange SPI clock and select line synchronization, but other SPI configuration options seems to be working well. If you can get me a bit more info, I can help narrow down if it's a firmware bug.
Unfortunately i do not have another board to test with but it appears as though this code was originally written for the N+. i rewrote the bitbang driver for the 32x8 display so that it works with the 24x16 displays and its sufficiently fast for what i need so i have a workaround.
If it is indeed a bug, hopefully others can provide more information than what i have so far to aid you.
Ryan