Olimex LPC-2478STK Eval board
Olimex LPC-2478STK
Controller:
CPU:
Board main features:
- NXP LPC2478 (ARM7TDMI-S) microcontroller in BGA package
- 512 kB internal flash
- 64 MB external SDRAM
- 96 KB internal RAM
- MP3 decoder DSP + codec VS1002
- 3-axis digital accelerometer with 11-bit accuracy
- IrDA transceiver
- PS/2 keyboard connector
- RS232 with ICSP control
- Reset button and circuit
- 2 buttons
- 1 trimpod
- UEXT connector
- Audio IN
- Audio OUT
- RTC battery
- FR-4, 1.5 mm, red soldermask, component pin
- 100/10 MBit Ethernet interface
- 12.000 MHz crystal for CPU
- 3.5 inch QVGA TFT color LCD with touch screen panel
- Ethernet connector (RJ45)
- MMC/SD interface & connector
- CAN interface & connector
- JTAG connector
- ETM connector
- USB device interface & connector
- USB host interface & connector
- Power supply, either via J-Link or external 9-12V DC
Controller main features:
- ARM7TDMI-S processor, running at up to 72 MHz.
- 512 kB on-chip flash program memory with In-System Programming (ISP) and In-Application Programming (IAP) capabilities. Flash program memory is on the ARM local bus for high performance CPU access.
- 98 kB on-chip SRAM includes:
- 64 kB of SRAM on the ARM local bus for high performance CPU access.
- 16 kB SRAM for Ethernet interface. Can also be used as general purpose SRAM.
- 16 kB SRAM for general purpose DMA use also accessible by the USB.
- 2 kB SRAM data storage powered from the RTC power domain.
LCD controller, supporting both Super-Twisted Nematic (STN) and Thin-Film Transistors (TFT) displays.Dedicated DMA controller.Selectable display resolution (up to 1024 × 768 pixels).Supports up to 24-bit true-color mode.Dual Advanced High-performance Bus (AHB) system allows simultaneous Ethernet DMA, USB DMA, and program execution from on-chip flash with no contention.EMC provides support for asynchronous static memory devices such as RAM, ROM and flash, as well as dynamic memories such as Single Data Rate SDRAM.Advanced Vectored Interrupt Controller (VIC), supporting up to 32 vectored interrupts.General Purpose AHB DMA controller (GPDMA) that can be used with the SSP, I2S, and SD/MM interface as well as for memory-to-memory transfers.Serial Interfaces:Ethernet MAC with MII/RMII interface and associated DMA controller. These functions reside on an independent AHB bus.USB 2.0 full-speed dual-port device/host/OTG controller with on-chip PHY and associated DMA controller.Four UARTs with fractional baud rate generation, one with modem control I/O, one with IrDA support, all with FIFO.CAN controller with two channels.SPI controller.Two SSP controllers, with FIFO and multi-protocol capabilities. One is an alternate for the SPI port, sharing its interrupt. SSPs can be used with the GPDMA controller.Three I2C-bus interfaces (one with open-drain and two with standard port pins).I2S (Inter-IC Sound) interface for digital audio input or output. It can be used with the GPDMA.Other peripherals:SD/MMC memory card interface.160 General purpose I/O pins with configurable pull-up/down resistors.10-bit ADC with input multiplexing among 8 pins.10-bit DAC.Four general purpose timers/counters with 8 capture inputs and 10 compare outputs. Each timer block has an external count input.Two PWM/timer blocks with support for three-phase motor control. Each PWM has an external count inputs.Real-Time Clock (RTC) with separate power domain. Clock source can be the RTC oscillator or the APB clock.2 kB SRAM powered from the RTC power pin, allowing data to be stored when the rest of the chip is powered off.WatchDog Timer (WDT). The WDT can be clocked from the internal RC oscillator, the RTC oscillator, or the APB clock.Single 3.3 V power supply (3.0 V to 3.6 V).4 MHz internal RC oscillator trimmed to 1 % accuracy that can optionally be used as the system clock.Three reduced power modes: idle, sleep, and power-down.Four external interrupt inputs configurable as edge/level sensitive. All pins on PORT0 and PORT2 can be used as edge sensitive interrupt sources.Processor wake-up from Power-down mode via any interrupt able to operate during Power-down mode (includes external interrupts, RTC interrupt, USB activity, Ethernet wake-up interrupt, CAN bus activity, PORT0/2 pin interrupt).Two independent power domains allow fine tuning of power consumption based on needed features.Each peripheral has its own clock divider for further power saving. These dividers help reducing active power by 20 - 30 %.Brownout detect with separate thresholds for interrupt and forced reset.On-chip power-on reset.On-chip crystal oscillator with an operating range of 1 MHz to 24 MHz.On-chip PLL allows CPU operation up to the maximum CPU rate without the need for a high frequency crystal. May be run from the main oscillator, the internal RC oscillator, or the RTC oscillator.Boundary scan for simplified board testing.Versatile pin function selections allow more possibilities for using on-chip peripheral functions.Standard ARM test/debug interface for compatibility with existing tools.Emulation trace module supports real-time trace.Available software:
Available documentation:
Olimex LPC-2478STK Eval board
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