Open1768 Standard Lpc Development Board Mircocontroller

Overview

Open1768 is an ARM Cortex-M3 development board that features an LPC1768 device as the microcontroller. It supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with ARM Cortex-M3 microcontroller.

What's On Board

1. LPC1768FBD100:the high performance ARM Cortex-M3 LPC MCU which features:
   • Core: Cortex-M3 32-bit RISC
   • Operating Frequency: 100MHz Max
   • Operating Voltage: 2.4-3.6V (3.3V typical)
   • Package: LQFP100
   • I/Os: 70
   • Memories: 512kB Flash, 64kB RAM
   • Communication Interfaces: 2 x SPI, 2 x SSP, 4 x UART, 3 x I2C, 1 x I2S, 6 x PWM, 8 x ADC, 1 x DAC
   • Debugging/Programming: supports SWD interfaces, supports ISP through UART
2. AMS1117-3.3: 3.3V voltage regulator
3. LM3526-L: USB power switch and over-current protection
4. Power switch
5. Power indicator
6. LEDs: convenient for indicating I/O status and/or program running state
7. USB communication indicator
8. Reset button
9. User keys: for I/O input test and/or program control
10. Joystick: five positions
11. 12M crystal oscillator: enables the MCU run at 48M frequency by frequency multiplication
12. 32.768K crystal oscillator: for internal RTC, also supports clock calibration
13. USB HOST port: for connecting USB flash drive, etc.
14. CAN2 interface: communicates with accessory boards which feature the CAN device conveniently
15. CAN1 interface: communicates with accessory boards which feature the CAN device conveniently
16. I2C0 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.
17. SPI0 | SPI1 interface: for connecting SPI peripherals, such as DataFlash (AT45DBxx), SD card, MP3, etc.
18. Ethernet interface: easily connects the MCU to ethernet network by using an additional ethernet module, such as DP83848 Ethernet Board, etc.
19. ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
20. I2S interface (including I2C1, I2C2 interfaces): easily connects to I2S and/or I2C peripherals such as Stereo Audio Device, FRAM (FM24CLxx), etc.
21. LCD interface: combined with an 8-bit to 16-bit adapter, supports connecting the 3.2 inch multi-color touch screen LCD (the adapter and LCD are included in Package A/B)
22. UART2 | UART3 interface: for connecting UART peripherals, such as RS232, RS485, USB TO UART, etc.
23. PS/2 interface: easily connects to PS/2 keyboard and/or mouse
24. Modem interface (including UART1 interface): for connecting Modem and/or UART peripherals, such as RS232, RS485, USB TO UART, etc.
25. 8 I/Os interface (including 3-ch AD, 1-ch DA)
    • for connecting accessory boards which using I/O control, such as 8 Push Buttons, Motor, etc.
    • also integrates AD/DA function for AD/DA testing
26. ISP interface (including UART0 interface): for connecting ISP modules and/or UART peripherals, such as RS232, RS485, USB TO UART, etc.
27. USB port: communicating with PC
28. 5V DC jack
29. 5V/3.3V power input/output: usually used for power output, and/or common ground with other application board
30. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion
31. JTAG/SWD interface: for debugging/programming
32. LEDs jumper
33. User keys jumper
34. Joystick jumper
35. PS/2 jumper

1. VBAT selection jumper
   • short the jumper to use system power supply
   • open the jumper to make it possible to connect the VBAT to external power, such as battery

Photos

Note:
The Open1768 supports programming via UART BOOT LOAD, a USB TO UART accessory board is also provided in the package.
The Open1768 does NOT integrate any debugging function, a debugger is required.
The Open1768 Standard includes only ONE accessory board -- LPC ISP (mini).

JTAG/SWD Interface

The figures below shows the header pinouts of JTAG/SWD interface

Note: some of the LPC Cortex-M3 Open series development board integrates SWD only.

Development Resources

• Related Software
  • KEIL MDK-ARM Lite Edition (32 Kbytes limited), etc.
• Demo Code (examples in C)
• Schematic (PDF)
• LPC ARM Cortex-M3 Development Documentations (Datasheets etc.)