ADI公司的ADuC7020芯片的IO核心板

是ADI公司的ADuC7020芯片的IO核心板！蛮不错的！

实际效果图：

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

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 C Programmable Logic (Array), Power Specified for 3V operation, Active Mode: 6mW (@1MHz) 300mW (@45MHz), Fully specified for C40°C to 85°C operation;

JTAG connector for in-circuit programming and debugging with ARM-JTAG

USB-RS232 convertor 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 Hz oscillator crystal

power supply filtering capacitor and ferite bead

extension header for ADC and DAC ports

PCB: FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print

实验板软件

RS232 initialization for EW-ARM

LCD, DAC demo code for EW-ARM

LCD write for EW-ARM

ADC read DAC write demo code for EW-ARM

Blink LED demo code for EW-ARM

RS232 , UART, demo code for EW-ARM

DAC sinusoidal generation demo code for EW-ARM

SPI demo code for EW-ARM

Basic initializations for ADUC7020 demo code for EW-ARM