bootload isue

Natural_demon · February 17, 2006, 4:57am

hi, thorsten.

so wie du langs weist, mÃ¶chte 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 mÃ¶chte 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 kÃ¶nten 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 vorslÃ¤ge wie ich das am besten machen wurde, so das dein boatloader valid ist.

gruss,

marco

Jidis · February 17, 2006, 8:55pm

Alright man, that’s not fair.

Don’t make me have to start posting some speak&spell code in here.

-Zbrozb

Natural_demon · February 18, 2006, 1:25am

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

T.K · February 18, 2006, 6:26pm

The bootloader doesn’t run on a PIC16F device, and especially with a PIC16F84 you won’t have much fun (too small memory, several instructions, peripherals and mechanisms not available)

Best Regards, Thorsten.

Natural_demon · February 19, 2006, 10:42am

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

T.K · February 19, 2006, 3:37pm

In general you only need to adapt the port configuration (search for TRIS within the source code), you may also want to remove the shift register configuration, since this is MIOS specific stuff. Other changes are normaly not required.

The program which should be uploaded needs two “goto <start-label>” instructions beginning at 0x0000, the first one will be overwritten during upload

Best Regards, Thorsten.