INTRODUCTION
ADuC-IO7020
is very good platform for automation application which
need fast ADC and DACs and need to commutate high loads. It have 4 relays
240VAC/10A, 4 optoisolated inputs, RS232, JTAG and the 1Msps ADC/DACs are
available on separate conenctor for connection to external sensors.
BOARD FEATURES
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MCU: ADuC7020 - ARM7TDMI Core, 16/32-bit RISC architecture, 5
Channels 12-bit, 1MSPS ADC, Differential and single-ended modes, 0 to
Vref Analog Input Range, 4 Outputs 12-bit Voltage Output DACs, On-Chip
20ppm/°C Voltage Reference, On-Chip Temperature Sensor (±3°C),
Uncommitted Voltage Comparator, JTAG Port, Clocking options: Trimmed
On-Chip Oscillator (± 2%), External Watch crystal, External clock source
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45MHz PLL with Programmable Divider, 62k Bytes Flash/EE Memory, 8k
Bytes SRAM, In-Circuit Download, JTAG based Debug, Software triggered
in-circuit re-programmability, UART, dual I2C and SPI Serial I/O, 14-Pin
GPIO Port, 2 X General Purpose Timers, Wake-up and Watchdog Timers,
Power Supply Monitor, PLA – Programmable Logic (Array), Power
Specified for 3V operation, Active Mode: 6mW (@1MHz) 300mW
(@45MHz), Fully specified for –40°C to 85°C operation;
•
JTAG connector for in-circuit programming and debugging with ARM-
JTAG
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RS232 interface circuit and connector
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I2C connector
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RESET button
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SERIAL DOWNLOAD (bootloader enable) button
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LED status
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power supply circuit with plug-in power jack and diode protection
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32 768 Hz oscillator crystal
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4 RELAYs with 10A/250VAC NO and NC contacts with screw terminals
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extension header for ADC and DAC ports
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On-chip Bootloader, which can be accessed via RS232 using ARMWSD.exe.
When you open ARMWSD.exe, click button Start and after that will be
appeared message “Press Download and pulse Reset on hardware” - press
button SD on AduC-MT7020 and pulse Reset button – this will give you
access to Bootloader, where you can load your own program.
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PCB: FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component
print
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four mounting holes 3.3 mm (0.13")
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