MegaDrum 56 inputs latest schematic and PCB

Discussions related to MegaDrum Hardware

Re: MegaDrum 56 inputs latest schematic and PCB

Postby Necrotique » Thu Oct 06, 2011 8:42 pm

hi, has anyone the kicad or eagle libary from the 74HC4851 IC?

greetings
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby dmitri » Thu Oct 06, 2011 9:23 pm

Schematics and footprint libraries for most widely used parts/devices are included with KiCad, e.g. for 4851 ICs you can use 4051 for schematics and a relevant footprint - e.g. DIP16.
For less widely used parts/devices you can look at http://www.kicadlib.org/, google or draw your own.
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby mail_valik » Wed Oct 12, 2011 1:35 pm

What is it? Problem with PCB picture - marked red
test.jpg
You do not have the required permissions to view the files attached to this post.
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby dmitri » Wed Oct 12, 2011 8:44 pm

It's called 'thermal relief'.
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby mail_valik » Thu Oct 20, 2011 9:52 am

Help please!
Is
SN74HC4851QPWRQ1 http://www.ti.com/lit/ds/symlink/sn74hc4851-q1.pdf
are replacement for 4851??
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby dmitri » Thu Oct 20, 2011 1:57 pm

4851 is a generic term for all versions of the chip. All will do for MegaDrum. If there were a requirement for a specific 4851 chip version I would have pointed it out.
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby isque » Mon Dec 26, 2011 9:42 am

Hi Dmitri,in the case that i just need 32 inputs, can i use the Atmeage32-16PU MCU for this pcb? And which input socket schematic for this PCB? Is the smae as this below?
Image
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby dmitri » Mon Dec 26, 2011 11:14 am

isque wrote:Hi Dmitri,in the case that i just need 32 inputs, can i use the Atmeage32-16PU MCU for this pcb?

Atmega32, 324, 644 are all pin compatible.

And which input socket schematic for this PCB? Is the smae as this below?

The explanation for pinout of the input sockets is in the first post.
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby Maylord.war » Thu Jan 05, 2012 1:16 am

Hi all

Only two question:

1) With this version is possible to select the low or high impedance for hihat?

2) The pinout of the IDE output is the same of the v3.2?

Thanks a lot and happy new year :)
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Re: MegaDrum 56 inputs latest schematic and PCB

Postby dmitri » Thu Jan 05, 2012 7:49 am

Maylord.war wrote:Hi all

Only two question:

1) With this version is possible to select the low or high impedance for hihat?

Both low and high impedance HiHat controller inputs are on Pads Connector.

2) The pinout of the IDE output is the same of the v3.2?

v3.2 of Synthex's board? No.
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