Walter_76
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Great! Thank you so much all, guys!
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The display is a Wintek WM-C2004R, using a HD44780 equivalent. The LCD is good, as the message correctly starts at 1st row when the MIOS8 is loaded... 8-bit operation should be considered in case the LCD freezes... not my case... Here is what I see: ROW #1: " " ROW #2: "E002|PInt Ld Chn. 1" ROW #3: "1---|Lead Patch " ROW #4: " "
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Uploaded MB-SID V2 on all the PICs via MISO Studio. Now the slaves show "CS not enabled!", while the master shows again the MB-SID menu, but limited to rows 2 & 3... :sick: I am working on the mother board only now, no control board connected... Is this a problem?
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Another doubt... According to what is written here http://www.midibox.org/dokuwiki/doku.php?id=wilba_mb_6582 under Q&A, only the master (ID=0) has to be loaded with MB-SIV V2. The slaves should be "cloned" by the master via CAN. I connected the LCD to each slave and I still get messages from the change-ID application ("New ID Header: 0000...0001"). Is this correct? Or do I have to upload MB-SID V2 into the slaves also? Sorry to bother you all with all these silly questions... :sad:
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Something is going the right way... Let me summarize my steps up to now, in case it could help somebody else: 1) All PICs flashed with the bootloader (BURNER folder): http://ucapps.de/mios/mios_v1_9h.zip 2) MIOS8 loaded into all PICs via MIOS Studio (MIDI folder): http://ucapps.de/mios/mios_v1_9h.zip 3) Assigned different IDs (0 through 3) by loading the pre-compiled HEX I found here: http://ucapps.de/mios/change_id_v1_9g.zip 4) Uploaded MB6582 application (setup_MB6582.hex): http://ucapps.de/mios/midibox_sid_v2_044.zip Steps #1 through #3 have been performed by placing each PIC on CORE1 socket in turn. Step #4 has been performed after placing each PIC on their respective CORE socket. At power-on I get the MB6582 messages on the LCD, but only 2nd and 3rd rows are used... After uploading MIOS8 1st and 2nd rows were showing the message, therefore I guess the problem is now setting properly the LCD for 20x4. Please correct me if I am wrong.
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I forgot Problem #3: how can I change ID? If I correctly understood, each PIC must have a different ID in MB6582...
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Hi all, it seems a neverending story... Very strange I am the only one facing with these problems! I successfully flashed the bootloader into all the 4 PICs via Pickit3. The 10MHz clock is OK --> so far, so good. I installed MIOS Studio V2 and I connected the MIDI connectors to the PC. I uploaded MIOS8 on the CORE1 PIC and the upload seems working fine: CORE1 is detected by MIOS Studio. Problem #1: if I reset the board and re-launch MIOS, CORE1 is no longer detected... Problem #2: I am not able to upload MIOS8 into all PICs by leaving them on their MB6582 sockets. Also acting on J11 to assign the MIDI port to a different PIC has no effect. The only way to upload MIOS is moving the PICs in turn on CORE1 site...
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At the moment I am fighting with my MB6582... I flashed lots of PICs in the past, but the 4 guys in the MB6582 are making me crazy! If the problem is HW, I would be happy to help you. Unfortunately I am quite far from UK (Italy)...
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Hi Kai, I understand your feeling... Frankly speaking I don't know the Sammich, but I guess there is an optocoupler somewhere around the MIDI interface... Are you sure it is the specified part? any chance to replace it eventually? Checking the waveforms at the MIDI connector and the corresponding signals at the microcontroller inputs could help a lot, IMO... If some MIDI controls are randomly executed, maybe it is a problem of signal integrity or noise... Just my opinion. Walter
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Oops! In this case I misunderstood... Therefore there is no way to flash the PICs with the MB6582 application directly? If not, I still have to find out a suitable USB-to-MIDI converter... Any advice? It read most of the (cheap) converters are not good...
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I got the PICs as free samples several years ago from Microchip. I can successfully erase, program and verify them through Pickit3 & MPLAB IPE. Maybe I am wrong, but I assumed I just need to flash the "setup_mb6582.hex" FW to make them working in the MB6582... Initially I was in doubt about the LCD (although it works fine on another circuit) and I decided to flash the 1kHz test FW to check basic activity on the PICs. As said, nothing happens...
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Hello all, I almost completed my MB6582 and I am stuck at testing the main board. My idea is testing the PICs are running before inserting the precious SIDs. I flashed all 4 chips with "setup_mb6582.hex", but nothing happen on the LCD... I also flashed the 1kHz test FW --> nothing... :no: Supply voltage is OK on all pins and MCLR (pin 1) is high as expected. Cannot see any waveform at the oscillator's pins (10MHz XTAL and 33pF caps are OK). I would say the internal oscillator is not set for external xtal... Anyone got a similar problem starting from blank PICs? Thank you, Walter
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Hello all, I am building my MB6582 and I would like to use a single regulated 12VDC wall adapter. I already read different posts related to the MB6582 power supply options, but I am still in doubt... Question: can I directly use the 12VDC rail for the SIDs (6582) and a switching regulator to derive the +5V rail? I mean: any problem in terms of noise in referring both the rails to the same GND instead of superimposing the 9V to the 5V one? Thank you! Walter