when 128k is not enough

[longpole001]

ok if i am going to break out to 2 or more cpus's

then perhaps breakup into hardware voltage use
cpu1 128K 18F 64PIN 64MHZ 5v - 18F67K22
xtl based 10ppm
cpu clock calibration control
GLCD 1 = 240 X 64 5V UNIT
GLCD 2 = 240X 128 5V UNIT

GLCD SUPPORT SERVICES -
gldc bightness control PWM / back lighting

KEY MATRIX 4 X4 / SUPPORT / KEY MENUS SYSTEM MENUS / EVENT MENUS SUPPORT
touch screen interface / support / CALIBRATIONS
cpu clock calibration

SERIAL PORT 1 - USB TTL MODUAL / USB CHANGER pwr CCT / VOLTAGE MONITOR / alarm SERVICES / USB UPDATE BOOT CODE SUPPORT / REMOTE DISPLAY RF DONGLE SUPPORT / DEBUG - 5V UNIT

RTC - software iC2 - 5V UNIT / modual 1/100th SUPPORT / ELAPSED TIMER MODUAL SUPPORT /

RGB Led for onboard status/ monitor (heartbeat) both cpus.
SPI bus 1 - level converters used - FLASH 32Mb (3V3 / FLASH SUPPORT / FONTS / SYMBOLS / BANNERS / common STRINGS / ALL MENUS / TEMP BOOT CODE STORAGE / REMOTE DISPLAY STRINGS/ OTHER DATA tables AS NEEDED
SPI bus 1 - ( same bus as flash ) SD CARD ( 3v3) / CARD SERVICES/ FILE SUPPORT CONVERTED TO NOT USE LONGS
( COMMON BUFFERS FOR BOTH DEVICES )
spi bus 2 - cpu2 interface ( level converters used ) / INTERFACE CODE / BUFFERS / INTERRUPT SERVICES CONTROL WORDS / STATUS WORDS AND PROTOCOLS

spare serial + port 3 pins

CPU2 128K 64MHZ 18F67K22 3V3

RF MODUAL 3V3 / SUPPORT SERVICES / ALL, RELATED RF ATIVITIES FOR GATES/ AND SUPPORT RF TRAFFIC DEVICES / HAND CONTROLLERS ID DATA / SYSTEMS / PROPRIETARY ENCRYPTED ENCODED PROTOCOL

EVENTS HORN CONTROL / SOUND CHIP modual 3V3 / flash - EVENT TRIGGERING AND GATES control / options settings / monitoring services

ALL EVENT RELATED DATA / EVENT GATE CONTROL / ELAPSED TIMER INTERFACE SERVICES / EVENT LOOKUP FIND ROUTINES / Floating point for distance speed caculations ( use longs )

SPI BUS 1 - 2ND FLASH CHIP 32mb - / EVENTS RECORDS DATA / boot code temp use

Spi bus 2 - cpu2 interface ( level converters used ) / INTERFACE CODE / BUFFERS / INTERRUPT SERVICES CONTROL WORDS / STATUS WORDS AND PROTOCOLS


Shared services modual

coding for bootloader programing for cpu1 , cpu2 , flash 1


well thats a staring point anyway

[Demon]

Unless you move to next-gen PICs, this is a huge step towards a much more reliable system; easier to write, debug, support and expand.

Awesome project. Looking forward to seeing your demo video.

Robert


Edit: I know it's gnawing at your guts, that it feels like a step back, another delay towards your goal.

It's the opposite, it's an investment. I was a system's analyst, from the high level down to the code. You'll be happy later when things go sideways or you add more features.