Difference between revisions of "Z80-MBC2 Build Notes"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) (→Other) |
Blwikiadmin (talk | contribs) |
||
| Line 59: | Line 59: | ||
[[FILE:Z80-MBC2_FigForth.PNG]] | [[FILE:Z80-MBC2_FigForth.PNG]] | ||
| + | |||
| + | <pre> | ||
| + | Z80-MBC2 CP/M 2.2 BIOS - S030818-R140319 | ||
| + | CP/M 2.2 Copyright 1979 (c) by Digital Research | ||
| + | |||
| + | A>DIR | ||
| + | A: ASCIART BAS : ASM COM : AUTOEXEC SUB : AUTOEXEC TXT | ||
| + | A: D COM : DDT COM : DUMP COM : ED COM | ||
| + | A: GENHEX COM : GPELED BAS : GPIO BAS : HELLO ASM | ||
| + | A: HELLO COM : LOAD COM : MAC COM : MBASIC COM | ||
| + | A: MBASIC85 COM : PEG COM : PIP COM : RTC BAS | ||
| + | A: STARTREK BAS : STAT COM : SUBMIT COM : TREKINST BAS | ||
| + | A: USERLED BAS : XMODEM CFG : XMODEM COM : XSUB COM | ||
| + | A: ZDE16 COM : ZDENST16 COM | ||
| + | A>STAT A: | ||
| + | |||
| + | Bytes Remaining On A: 7908k | ||
| + | |||
| + | B>DIR | ||
| + | B: TINST COM : TURBO COM : ART TXT : TINST DTA | ||
| + | B: TINST MSG : TURBO MSG : TURBO OVR : TURBOMSG OVR | ||
| + | B: SA PAS : README TXT | ||
| + | |||
| + | C>DIR | ||
| + | C: $EXEC COM : ASSERT H : C COM : CGEN COM | ||
| + | C: CONIO H : CPM H : CPP COM : CREF COM | ||
| + | C: CRTCPM OBJ : CTYPE H : DEBUG COM : DEHUFF COM | ||
| + | C: EXEC H : FLOAT H : HITECH H : LIBC LIB | ||
| + | C: LIBF LIB : LIBR COM : LIMITS H : LINK COM | ||
| + | C: MATH H : OBJTOHEX COM : OPTIM COM : OPTIONS | ||
| + | C: P1 COM : README TXT : RRTCPM OBJ : SETJMP H | ||
| + | C: SIGNAL H : STAT H : STDARG H : STDDEF H | ||
| + | C: STDIO H : STDLIB H : STRING H : SYS H | ||
| + | C: TIME H : UNIXIO H : ZAS COM | ||
| + | |||
| + | D>dir | ||
| + | D: CPMIO MAC : CRCKLIST CRC : CREF80 COM : DSKDRV MAC | ||
| + | D: DTBF MAC : F80 COM : FCHAIN MAC : FORLIB REL | ||
| + | D: INIT MAC : IOINIT MAC : L80 COM : LIB COM | ||
| + | D: LPTDRV MAC : LUNTB MAC : M80 COM : TTYDRV MAC | ||
| + | D: README TXT | ||
| + | |||
| + | E>dir | ||
| + | E: BASCOM COM : BASCOM HLP : BASCOM2 HLP : BASLIB REL | ||
| + | E: BCLOAD : BRUN COM : CREF COM : CREF80 COM | ||
| + | E: README TXT : L80 COM : LIB80 COM : M80 COM | ||
| + | E: MBASIC COM : OBSLIB REL : RANTEST ASC : RANTEST BAS | ||
| + | E: RANTEST COM : RANTEST REL : SAMPLE BAS : SAMPLE COM | ||
| + | E: SAMPLE REL | ||
| + | E>f: | ||
| + | |||
| + | </pre> | ||
Revision as of 21:26, 23 July 2021
Contents
Sourced PCB
- ebay - bare PCB $8
- Arrived in a couple of days
Reference Docs
- An Easy to Build Real Homemade Computer: Z80-MBC2! - Instructable was helpful
- Hackaday project with files
Build Notes
- All through hole construction
- Build took less than 2 hours
- Used mostly junk box parts
- 20 MHz Z80
- Purchased alternate SRAM
- Purchased DIP machined sockets (I usually go cheaper but these were very nice)
- Forgot to buy SIP resistors
- Made my own SIP resistors
- Pin 1 (boxed pin on silkscreen is the common
- Used 1/8W resistors vertically mounted
- 5mm LEDs fit into 3mm hole spacing
- I didn't have a 3mm Blue so I used 5mm
Negatives
- Ref des are not top-bottom or left-right
- PDF Assembly drawing text is not searchable
- Struggled to find some of the resistors on the PCB
- Serial port marking correlated to the FTDI card end not referenced from card internal
Programming THE ATMEGA32
- IOS-LITE build (no SD card support)
- Was able to use ATProgHead ICSP 2x3 cable running Arduino as ISP to burn bootloader but not program the code
- Could not use any of my FTDI cards for serial programming since they have RTS/CTS but not DTR
- Most programmer setups in Arduino work just fine with RTS since both are usually pulled, but not the MightyCore
- This is speculation as to why but I am able to program Screwduino cards just fine
- Used TL866ii to program ATMEGA32 fuses
- The Fuse bits should be: High Byte 0xD6, Low Byte 0xAF, Lock Byte 0xCF.
- Reference: Setting AVR Fuse Bits
- If you use the programmer defaults it sets the clock to 1 MHz which gives a serial port rate of 600 baud (told me I needed to fix the fuses).
- Found path in dump in Arduino IDE:
Arduino: 1.8.13 (Windows 10), Board: "ATmega32, Yes (UART0), EEPROM retained, Standard pinout, BOD 2.7V, LTO disabled, External 16 MHz" Sketch uses 28642 bytes (88%) of program storage space. Maximum is 32256 bytes. Global variables use 1213 bytes (59%) of dynamic memory, leaving 835 bytes for local variables. Maximum is 2048 bytes. C:\Users\HPz420\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino18/bin/avrdude -CC:\Users\HPz420\AppData\Local\Arduino15\packages\MightyCore\hardware\avr\2.1.3/avrdude.conf -v -patmega32 -carduino -PCOM23 -b115200 -D -Uflash:w:C:\Users\HPz420\AppData\Local\Temp\arduino_build_883457/S220618_IOS-LITE-Z80-MBC2.ino.hex:i
Software
Z80-MBC2 CP/M 2.2 BIOS - S030818-R140319 CP/M 2.2 Copyright 1979 (c) by Digital Research A>DIR A: ASCIART BAS : ASM COM : AUTOEXEC SUB : AUTOEXEC TXT A: D COM : DDT COM : DUMP COM : ED COM A: GENHEX COM : GPELED BAS : GPIO BAS : HELLO ASM A: HELLO COM : LOAD COM : MAC COM : MBASIC COM A: MBASIC85 COM : PEG COM : PIP COM : RTC BAS A: STARTREK BAS : STAT COM : SUBMIT COM : TREKINST BAS A: USERLED BAS : XMODEM CFG : XMODEM COM : XSUB COM A: ZDE16 COM : ZDENST16 COM A>STAT A: Bytes Remaining On A: 7908k B>DIR B: TINST COM : TURBO COM : ART TXT : TINST DTA B: TINST MSG : TURBO MSG : TURBO OVR : TURBOMSG OVR B: SA PAS : README TXT C>DIR C: $EXEC COM : ASSERT H : C COM : CGEN COM C: CONIO H : CPM H : CPP COM : CREF COM C: CRTCPM OBJ : CTYPE H : DEBUG COM : DEHUFF COM C: EXEC H : FLOAT H : HITECH H : LIBC LIB C: LIBF LIB : LIBR COM : LIMITS H : LINK COM C: MATH H : OBJTOHEX COM : OPTIM COM : OPTIONS C: P1 COM : README TXT : RRTCPM OBJ : SETJMP H C: SIGNAL H : STAT H : STDARG H : STDDEF H C: STDIO H : STDLIB H : STRING H : SYS H C: TIME H : UNIXIO H : ZAS COM D>dir D: CPMIO MAC : CRCKLIST CRC : CREF80 COM : DSKDRV MAC D: DTBF MAC : F80 COM : FCHAIN MAC : FORLIB REL D: INIT MAC : IOINIT MAC : L80 COM : LIB COM D: LPTDRV MAC : LUNTB MAC : M80 COM : TTYDRV MAC D: README TXT E>dir E: BASCOM COM : BASCOM HLP : BASCOM2 HLP : BASLIB REL E: BCLOAD : BRUN COM : CREF COM : CREF80 COM E: README TXT : L80 COM : LIB80 COM : M80 COM E: MBASIC COM : OBSLIB REL : RANTEST ASC : RANTEST BAS E: RANTEST COM : RANTEST REL : SAMPLE BAS : SAMPLE COM E: SAMPLE REL E>f:
