Natural_demon

how about? http://www.microchip.com/ParamChartSearch/chart.aspx?branchID=11026&mid=11&lang=en&pageId=79 wouldn't this fit your needs?

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

oops, i forgot to mention, the upper drawing is the original von trevor page, ofcourse i want to use 18f452. ich have those 18lf452, remember? kind regards, marco

wel basicly, i said. i want to use the bootloader of thorsten for my own projects. but i don't know if the core module has to be adjusted. i need to control that what i painted in the picture. i want to know in how far i need to adjust the core module or maybe it aint nessary to adjust anything. my other question, if i could use the bootload in it's original form. how do i program the firmware. i mean the ... org stuf and so on, i don't know where the bootloader start and ends. i want to build a clone of the tr-909 with sequencer. kind regards, marco

hi, thorsten. so wie du langs weist, möchte ich gerne dein boatloader benutsen. aber ich mochte das core module an meine wunche anpassen. der port fur das display finde ich gut und werde ich so lassen. ich habe boards von trevor page, aber ich möchte auch mein eigener 909 clone bauen. ich brauche ein 6 bit weiten data port fur eine reihe 40174/74hc174, when ich 3 stuck rein baue, brauch ich auch 3 ausgange(clock line) um diesen ic's zum activieren/resetten. aber ich brauch auch 2 x 4051, die daten von dieser ic's könten uber die 6 bit aus der oberen zeile benutzen. so siet das ganse jetz aus when ich dein bootloader benutzen wurde, mussen da dinger geadnert werden. has du vorsläge wie ich das am besten machen wurde, so das dein boatloader valid ist. gruss, marco