Development Board for Analog Devices ADuC7020 ARM7TDMI microcontroller, with 2-line by 16-character LCD, user buttons, USB interface, JTAG connector, ADC/DAC headers, I2C connector, Reset button and Serial Download button.

ADuC7020 Development Board Features

• MCU: Analog Devices ADuC7020, ARM7TDMI Core, 16/32-bit RISC architecture
• Standard 2x10-pin ARM JTAG connector
• USB-RS232 converter and interface to ADuC7020; can be used for serial download
• I2C connector
• RESET supervisor IC and button
• SERIAL DOWNLOAD (bootloader enable) button
• Two buttons
• LCD 16x2 display with backlight
• 32.768 kHz oscillator crystal
• Power supply filtering capacitor and ferrite bead
• Extension header for ADC and DAC ports
• PCB: FR-4, 1.5 mm (0.062"), green soldermask, white silkscreen component print

ADuC7020 Microcontroller Features

• ARM7TDMI Core, 16/32-bit RISC architecture
• 5-Channel, 12-bit, 1Msps ADC
• Differential and single-ended modes
• 0 to Vref Analog Input Range
• 4-Output, 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, 45MHz PLL with Programmable Divider
• 62 kBytes Flash/EE Memory, 8 kBytes 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
• 2x General-Purpose Timers
• Wake-up and Watchdog Timers
• Power Supply Monitor
• Programmable Logic Array
• Power specified for 3V operation, Active Mode: 6mW (@1MHz) to 300mW (@45MHz)
• Fully specified for –40°C to 85°C operation

ADuC7020 Development Board Resources

• ADuC-MT7020 Schematic
• RS232 initialization code (ZIP file; 45K)
• LCD and DAC demo code (ZIP file; 54K)
• LCD write and buttons code (ZIP file; 50K)
• ADC read / DAC write demo code (ZIP file; 46K)
• UART demo code (ZIP file; 43K)
• DAC sinusoidal pattern generation code (ZIP file; 45K)
• SPI demo code (ZIP file; 42K)
• Basic ADuC7020 initialization code (ZIP file; 41K)