Mini midi CV converter - help needed

[Natural_demon]

i'm trying to make a midi CV converter for a single Drum module of the known analog .....

i wanna make a bassdrum (maybe i add a clap too) only and i need a litle help with the design and programming.

i wanna use pic18f1320.

i did some projects with a pic16f84A and made some light effects with it, like knightrider, ect, ect.

but this is something totaly different, this includes serial data.

what i would like to know is, is the port configution good?

i have check the datasheet of that particlair pic.

i think i'm good now.

this is the second try, because i found out the MCLR only acts as input.

i would like to know your opinion about this schematic.

would u do it different?

the problem is more or less the double functions the pins have.

should i leave the the XTAL out and use it as I/O pins?, so i don't have the split on portB for driving the Latch (74hc174).

it only needs to trigger 1 drum sound.

thanks for your time.

Kind regards,

ND

p.s. i know it aint midibox related, because the device used in it is to big for my needs and i don't need to drive a LCD, i just wanted fastes latency possible.

more readable format here

http://209.35.198.6/mini_midi_CV_trigger.pdf

eagle file, for those that can advice me improvements.

http://209.35.198.6/mini_midi_CV_trigger.sch

[Sebo]

Hi:

I can't help you, I'm new with digital electronics. But I'm building

some drum modules and I want a MIDI to drum converter too.

I was planing to build the MIDI to drum part of the TR-9090 project,

a clone of the TR-909 made by Trevor Page (I buyed a kit from him),

to use with the drum modules I'm building.

Check the schematics at his site (http://introspectiv.org/). May be that

can help you.

Sebo