8085 Kit Manual
User Manual:
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- usermanual4.pdf
- 8085 Microprocessor Kit
- User's Manual
- Getting Started
- AC Adapter
- The kit requires DC power input to operate. The input voltage accepts from +7.5V to +12V. You may find any AC-to-DC adapter having DC jack with polarity as shown in Figure 2. The board has protection diode to prevent wrong polarity. If your adapter’s jack has different polarity, when plug it to the board, no power will be supplied. The center pin is positive.
- LED Display and Keypad
- The kit has 6 digits 7-segment LED and 28 tact switches keypad.
- Connecting Terminal
- The kit provides RS232 port for connecting the terminal. The ROM monitor contains ASCII commands when using UART to connect a terminal. The UART drivers and serial commands are automatically configured when UART chip was inserted. Communication format is 9600 bit/sec, 8 data bit, no parity and one stop bit. We can use PC running VT100 terminal emulation. The CD has teraterm software for emulating VT100 terminal.
- There is no need to switch between standalone mode and terminal mode. Both commands using keypad or terminal commands are working concurrently.
- When press reset the prompt appears on screen.
- MTK-85 8085 MICROPROCESSOR TRAINING KIT (? HELP)
- A - ASCII code
- C - clear watch variables
- D - disassemble
- E - edit memory
- F - fill constant
- H - hex dump
- I - i/o address map
- J - jump to user program
- K - display user STACK
- L - load Intel hex file
- M - monitor call number
- N - new location pointer
- Q - quick home location
- R - user register display
- S - set value to user register
- W - watch variables
- SPACE BAR - single step
- ? - help menu
- 8100>
- Command ‘R’ displays user registers contents.
- 9000>
- AF=5800 BC=19F4 DE=C256 HL=9504 SP=F098 PC=9000 S=0 Z=0 AC=0 P=0 CY=0
- 9000>
- Hardware
- CPU
- The CPU is a CMOS 80C85. The XTAL frequency is 4MHz. The reset signal is generated by simple RC circuit. The CPU is protected by brownout circuit. In case of power supply is dipped caused by AC supply voltage dropped. The brownout circuit detects VCC, if it is below threshold level, it will reset the CPU.
- The brownout condition can be tested by using a variable power supply. To test it, adjust the board VIN from 0-12V slowly and see the CPU can start running properly.
- Memory
- GPIO LED
- System Programmable Port 8255
- Programmable Counter 8254
- Headers and Connectors
- Interrupts Test Button
- textrmanual4.pdf
- 8085 Microprocessor Kit
- User's Manual
- Getting Started
- AC Adapter
- The kit requires DC power input to operate. The input voltage accepts from +7.5V to +12V. You may find any AC-to-DC adapter having DC jack with polarity as shown in Figure 2. The board has protection diode to prevent wrong polarity. If your adapter’s jack has different polarity, when plug it to the board, no power will be supplied. The center pin is positive.
- LED Display and Keypad
- The kit has 6 digits 7-segment LED and 28 tact switches keypad.
- Connecting Terminal
- The kit provides RS232 port for connecting the terminal. The ROM monitor contains ASCII commands when using UART to connect a terminal. The UART drivers and serial commands are automatically configured when UART chip was inserted. Communication format is 9600 bit/sec, 8 data bit, no parity and one stop bit. We can use PC running VT100 terminal emulation. You may download free terminal program, teraterm from this URL, http://ttssh2.sourceforge.jp/index.html.en
- There is no need to switch between standalone mode and terminal mode. Both commands using keypad or terminal commands are working concurrently.
- When press reset the prompt appears on screen.
- MTK-85 8085 MICROPROCESSOR TRAINING KIT (? HELP)
- A - ASCII code
- C - clear watch variables
- D - disassemble
- E - edit memory
- F - fill constant
- H - hex dump
- I - i/o address map
- J - jump to user program
- K - display user STACK
- L - load Intel hex file
- M - monitor call number
- N - new location pointer
- Q - quick home location
- R - user register display
- S - set value to user register
- W - watch variables
- SPACE BAR - single step
- ? - help menu
- 8100>
- Command ‘R’ displays user registers contents.
- 9000>
- AF=5800 BC=19F4 DE=C256 HL=9504 SP=F098 PC=9000 S=0 Z=0 AC=0 P=0 CY=0
- 9000>
- Hardware
- CPU
- The CPU is a CMOS 80C85. The XTAL frequency is 4MHz. The reset signal is generated by simple RC circuit. The CPU is protected by brownout circuit. In case of power supply is dipped caused by AC supply voltage dropped. The brownout circuit detects VCC, if it is below threshold level, it will reset the CPU.
- The brownout condition can be tested by using a variable power supply. To test it, adjust the board VIN from 0-12V slowly and see the CPU can start running properly.
- Memory
- GPIO LED
- System Programmable Port 8255
- Programmable Counter 8254
- Headers and Connectors
- Interrupts Test Button