|
RTC MODULE is small upgrade for DivIDE interface. Thanks to RTC chip is
possible use real time and date is system ESXDOS. Saved files to
FAT16/FAT32 will contain correct time. This module is based on old chip
RTC72421A (or RTC72421B) with battery backup. Module contain also kempston
joystick connector.
DIVIDE 57d3 with RTC module v03
FEATURES
- RTC chip with battery CR1620 in socket
- jumper for DISABLE RTC chip
- kempston joystick port #31 with full 8bit address decoding
- jumper for DISABLE JOYSTICK port
- joystick connector for possibility connect also JOYPAD from Sega Genesis
with up to 8 fire buttons
- two jumpers for select address of I/O ports of RTC chip
- possibility use original 8kB EEPROM or new 32kB EEPROM (AT28C256)
- two jumpers for select one of four systems (4x 8kB - eeprom 32kB contain
4 different divide systems)
UTILITIES FOR RTC
RTC_SETUP
- my utility for set and show time/date
RTC_CLOCK - easy utility for show time (by
BusySoft)
MCLOCK - utility for set and show time/date (by BusySoft)
SOFTWARE FOR JOYPAD SUPPORT
JOYPAD TESTER - my utility for visual
controll of joypad/joystick buttons + autodetection joystick/joypad
JOYPAD DRIVER - my software
driver for sega joypad with 8 fire buttons
RTC DRIVERS FOR SYSTEM ESXDOS
RTC.SYS by VELESOFT 2014
- used code with HOLD rtc chip
RTC.SYS
(doubleread) by VELESOFT 2014 - used read
only code
RTC.SYS by UB880D 2014 -
used code with HOLD rtc chip
SYSTEM ESXDOS WITH RTC SUPPORT
ESXDOS 0.8.6 BETA4
MODULE - PCB,EAGLE,SCHEMATIC
Eagle data
Gerber data
Schematic
Components list
Firmware for GAL22V10
Photos of soldering
DATASHEETS
RTC72421A
EEPROM 8kB (AT28C64)
EEPROM 32kB (AT28C256)
GAL22V10D-15LP
74LS240 |
