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Does the burned bootloader send any midi messages to MIOS Studio?


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Posted

HI all,

 

i don't know if my PIC contains a bootloader, since MIOS Studio can't communicate with the bootloader,

iam unsure if it is not flashed or something is broken.

 

- does the bruned bootloader send any midi message on startup to identify themself to MIOS Studio (which i can sniff to check if the bootloader is installed)?

- if it does and i don't get a midi message, i still don't know if the circuit is broken or if there is no bootloader installed - so is there a way to check for that without using midi? like some PIC Ports which are Lo or Hi only if a bootloader is installed?

 

Thx

 

Marco

Posted

Yes, it should be able to detect a MIOS8 core. Then you need to upload the bootloader through midi. After that you can upload the application.

Posted

When power is applied to the PIC processor that has a boot loader in it, a SYSEX message is sent out the Midi Out port.  It is f0  00 00 7e 40 01 f7 when the device ID is 0.  If you have a simple LED, go ahead and stick the leads into the Midi Out connector on your core.  When the unit is first powered up you should see the LED blink for a short period when this short message is sent out.  If you don't see it flash the first time, then reverse the leads on the LED and cycle the power again going to the core.  No flash indicates something is wrong.  Either missing resistors, bad PIC or pick not programmed with MIOS or no +5v.  You might even try looking at pin 1 of the PIC.  It should have a resistor pullup on it.  If it is missing it can cause the PIC to not run. 

 

If you have a display on your CORE it will show a message saying READY.

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