ARM Cortex M3

NXP LPC1768 ARM Cortex-M3 Evaluation Board

NXP LPC1768 ARM Cortex-M3 Evaluation Board
Features:
-Powerful MCU core: Cortex-M3
-processing rates of up to 100MHz, and includes a support eight areas of memory protection unit (MPU)
-Built-nested vector interrupt controller (NVIC)
-512KB on-chip Flash program memory, to support in-system programming (ISP) and In-Application Programming (IAP)
-64KB SRAM for high-performance CPU through the instruction bus, system bus, data bus access
-AHB multi-layer matrix with 8-channel DMA controller, general-purpose (GPDMA)
-Support the SSP, UART, AD / DA, timer, GPIO, etc., and can be used for the transmission of memory to memory
-Standard JTAG test / debug interface and debug serial line and serial line tracking port option
-Simulation trace module supports real-time tracking
-4 low-power modes: sleep, deep sleep, power-down, deep power-down
-Single 3.3V power supply (2.4V - 3.6V)
-Operating temperature: -40 ° C - 85 ° C
-Non-maskable interrupt (NMI) input
-On-chip integrated power-on reset circuit
-Built-in systems beat the timer (SysTick), to facilitate the operating system migration.
Board Resources
1,2-Way RS232 serial interface (using the straight-through serial cable, serial port support them all the way ISP download)
2,2 Road CAN bus communication interface (CAN Transceiver: SN65VHD230)
3, RS485 communication interface (485 Transceivers: SP3485)
4, RJ45-10/100M Ethernet network interface (Ethernet PHY: DP83848)
5, DA output interface (USB sound card can do experiments on-board speaker and speaker output driver)
6, AD input interface (adjustable potentiometer input)
7, color LCD display interface (which can take 2.8-inch or 3.2-inch color TFT 320X240)
8, USB2.0 Interface, USB host and USB Device Interface.
9, SD / MMC card (SPI) interface (available with FAT12, FAT16, FAT32 file system)
10, IIC Interface (24LC02)
11, SPI Serial FLASH Interface (AT45DB161D)
12,2 user keys, 2 function keys and the INT0 Reset button, 8 LED lights
13,1 Five keys to enter the joystick (Joystick)
14, serial ISP download (no need to set jumpers), the standard JTAG download, simulation debugging interface.
15, integrated USB emulator: simulation and debug capabilities to support online and support KEIL, IAR and other mainstream development environment.
16, optional external 5V power supply or USB input to provide 5V power supply.
17, leads all the IO, user-friendly external circuit to the secondary development of other applications.

ATMEL ATSAM3U ARM Cortex-M3 Board

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The ATSAM3U ARM-CM3 Board is an ARM embedded evaluation board produced by Embest, integrate the ATMEL Cortex-M3 core-based processor ATSAM3U4E, operating at 96 MHz frequency. The board features USB, I2C, MCI interface, TFT-LCD, USART interface, 96 I/O port, EBI support SRAM/NOR/NAND memory, etc. Plenty of software examples, which can be used in Keil MDK environment, are accompanied in CDROM.

Internal 256KB Flash, 48KB SRAM

240x320 TFT LCD

Source code of example program

ARM cortex-M3 Development Board on a budget

Label: ARM Board 0 komentar

NGX Technologies sent us this Blueboard LPC1768-H to play with. It’s basically a breakout board for an NXP LPC1768 ARM cortex-M3 microcontroller (datasheet). The board adds a few extra goodies, such as a choice of mini-USB connector or barrel-jack to provide regulated power to the chip. There’s also a clock crystal for the internal RTC and an Atmel 256kb EEPROM chip. This chip has 70 I/O ports, accessed through the pin headers on top and bottom of the board. The 20-pin header to the left is for a JTAG programmer (yes, you’ll need a separate programmer). Coming in at only $32.78 this is a very accessible route for projects that require more power than some of the traditional hobby controllers. The shipping seems to have come down since NGX’s last offering, now it would be under $10 to ship to the States.

The LPC1768 is the same controller from the mbed that we reviewed. What’s missing is some of the interface hardware and the boot-loader, but the tradeoff comes with a $66 savings. This is to mbed what an AVR board is to the Arduino, a way to get even closer to the hardware.

There are a few things we think are missing. Most notably, there isn’t a datasheet or user guide for the board itself. The only information available is a schematic (PDF), but that should be enough for those already well versed in working with microcontrollers. There is also a 12MHz clock crystal on the board but it doesn’t seem to be jumpered in case you wanted to use a different frequency. We’re not sure if this is much of an issue, the internal RC oscillators offer a lot of flexibility including operation up to 100MHz.

We feel this is a solid platform that will help to get more people into ARM development because of its low price.

Summary:
BlueBoard-LPC1768-H is a breakout board for LPC1768 cortex-M3 based microcontroller. The LPC1768 microcontroller has 512KB of internal flash and 64KB RAM. Ethernet MAC, USB Device/Host/OTG interface, 8-channel general purpose DMA controller, 4 UARTs, 2 CAN channels, 2 SSP controllers, SPI interface, 3 I2C-bus interfaces, 2-input plus 2-output I2S-bus interface, 8-channel 12-bit ADC, 10-bit DAC, motor control PWM, Quadrature Encoder interface, 4 general purpose timers, 6-output general purpose PWM, ultra-low power Real-Time Clock (RTC) with separate battery supply, and up to 70 general purpose I/O pins

Following are the salient features of the board.

Dimensions: 94.08x54.48 mm2
Two layer PCB (FR-4 material)
Power: USB powered or can be powered through the DC jack, 5-7.5V input
reset switch
Test LED
32Khz crystal for RTC
On board 258kb I2C EERPOM
Extension headers for all microcontroller pins
USB B-type connector for powering the board
20pin - JTAG connector

Schematics
Sample Code
User Manual

ARM Cortex M3

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ARM Cortex M3

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NXP LPC1768 ARM Cortex-M3 Evaluation Board

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ARM cortex-M3 Development Board on a budget

ARM Cortex M3

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