I have built MD,Now i want to test the inputs,How i do ?

[dmitri]

Either pin 15 of Atmega or pin 18 of PIC18F2550 may have failed.
Can you test it over a standard MIDI Out port of MegaDrum? If you can get MIDI data from the standard MIDI Out port then pin 15 of Atmega is ok.
What crystal do you use for Atmega?
What firmware file did you load into your MegaDrum? How did you load it?

[isque]

Either pin 15 of Atmega or pin 18 of PIC18F2550 may have failed.
Can you test it over a standard MIDI Out port of MegaDrum? If you can get MIDI data from the standard MIDI Out port then pin 15 of Atmega is ok.
What crystal do you use for Atmega?
What firmware file did you load into your MegaDrum? How did you load it?

Thanks,I use the 16MHZ crystal for Atmega32-16PU,and 12MHZ crystal for PIC18F2550.I was write the firmware into Atmega32-16PU with "megadrum32_16_32_20100402.hex" and PIC18F2550 with "pic18f2550usb_12MHz.hex" through a chip programming device.Did not write "bootloader" within.If still nothing changed,I will add MIDI standard port to test.Thanks.

[isque]

Hi All,

I've solved my problem,now my MD can send MIDI signal to PC via the USB cable.I solve this problem like this: I load the bootloader into MCU via the ISP2LPT Port Programming cable,But you had better,The 2Pin connect to 12Pin and 3Pin connect to 11Pin at LPT,Otherwise when you click the Probe button you may "Test Failed".Then load the older firmware of Ver."megadrum32_16_32_20091217.syx"into Atmega32 MCU via the USB cable in MIDI-OX.I just don't know,If load the bootloader is an Optional step,why I write the firmware "megadrum32_16_32_20100402.hex"into Atmega32 MCU by a programming device,it makes MD can't send MIDI signal to PC,though the 16MHZ and 32inputs are all match,Maybe the firmware of Ver."20100402" is gose wrong?I hope this topic and help the others.Thank you all.