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MY-EVC5100S-HMI (TI AM335x) (1)

          Products >  Discontinued Products >  MYD-LPC185X (NXP LPC185x) > MYD-LPC185X Development Board
MYD-LPC185X Development Board

MYD-LPC185X Development Board

- 180MHz NXP LPC1850, LPC1857 ARM Cortex-M3 Processor
- 32MB SDRAM, 2MB Nor Flash, 4MB SPI Data FLASH
- UARTs, USB, Ethernet, CAN, RS485, TF, Audio, LCD, JTAG
- Complete Keil MDK-ARM Sample Codes
- Optional 4.3" or 7.0" LCD/TSP

The MYD-LPC185X development board is an evaluation platform for NXP LPC1850 and LPC1857 ARM Cortex-M3 based microcontrollers which include up 200 kB on-chip SRAM and can work at up to 180 MHz. The MYD-LPC185X board takes full features of the ARM Cortex-M3 microcontrollers and exposes many peripheral interfaces including 3 UARTs, USB Host, OTG, Ethernet, 2 CAN interfaces, RS485, LCD, Audio, etc. It has 32MB SDRAM, 2MB Nor Flash and 4MB Data Flash as well as one Micro SD card slot to enhance storage capabilities.

The MYD-LPC185X board may carry one of the two processors (NXP LPC1850 and LPC1857) as to make corresponding models:

MYD-LPC1850 Development Board (based on NXP LPC1850)

MYD-LPC1857 Development Board (based on NXP LPC1857)

The MYD-LPC185X board is provided with plenty of MDK-ARM source code and detailed document as well as some necessary cable accessories to help users evaluate, learning and make prototype base on NXP LPC1850 or LPC1857 ARM Cortex-M3 processor at a fast period. The board enables customers to develop a wide range of applications such as motor control, power management, industrial automation, robotics, medical, automotive accessories, and embedded audio.

MYD-LPC185X Development Board



  • NXP LPC1857FET256/LPC1850FET256
    - ARM Cortex-M3 processor, running at CPU frequencies of up to 180 MHz

    - SRAM for code and data use (136 kB for LPC1857, 200kB for LPC1850)
    - ROM containing boot code and on-chip software drivers (64kB for LPC1857, 32kB for LPC1850)
    - Up to 1 MB on-chip dual bank flash memory with flash accelerator (only for LPC1857)
    - 16 kB on-chip EEPROM data memory (only for LPC1857)

Memory and Storages

  • 32MB SDRAM
  • 2MB Nor Flash
  • 4MB SPI Data FLASH
  • 1 x Micro SD card slot

Audio Interface

  • Audio input
  • Stero audio output port

LCD/Touch screen

  • Support 24-bit true color, resolution up to 1024 x 768 pixels
  • 4.3" LCD Module with resolution 480 x 272 pixels
  • 7" LCD Module with resolution 800 x 480 pixels
  • 4-wire resistive touch screen

Data Interface

  • 3 x UART (UART0, UART2 and UART3, UART2 need external MAX3232)
  • 1 x Hi-speed USB HOST
  • 1 x Mini USB OTG
  • 1 x Ethernet interface
  • 2 x CAN interface
  • 1 x RS485 (reused with UART1)
  • 20-pin JTAG interface


  • 1 x Power indicator
  • 6 x User LEDs

Mechanical Parameters

  • PCB Size: 115mm x 90mm
  • PCB layers: 4-layer design
  • Power supply: 5V/2A or USB power supply

Sample Codes

  • Keil MDK-ARM example code

Hardware Specification

Product MYD-LPC1850 MYD-LPC1857
Core ARM Cortex-M3, working at 180MHZ
Internal SRAM 200KB 136KB
Internal ROM 32KB 64KB
Internal  OTP 32bit 32bit
Internal FLASH 0 1MB
Internal EEPROM 0 16KB
External Memory and Storages
Nor Flash 2MB
SPI Data Flash 4MB
Micro SD card slot 1
Periphery interfaces
Ethernet 1
Serial port (UART0, 3) 2
RS485 (reused with UART1) 1
Interact Modules
4.3’’ TFT LCD 1
Audio input 1
Audio oput 1
User button 4
System button 1
System interface
JTAG interface 1
User extend interface (Please refer to user manual for GPIO reused setting)
Serial port(UART2) 1
ADC converter 8
DAC converter 1
I2C 2
GPIO Pins 20


Software Features

The MYD-LPC185X Development Board is provided with sample codes bundle for the peripherals using Keil's MDK-ARM to help users evaluate the NXP LPC1857 or LPC1850 ARM Cortex-M3 microcontroller.

Items Name Description
ADC Adc_Burst ADC converting under Burst Mode
Adc_Dma ADC converting via DMA
Adc_Interrup ADC converting under interrupt mode
Adc_Polling ADC converting under polling mode
ATIMER Atimer_Wic Alarm Timer wake up system
BOOTFAST Fast_Gpio_LedBlinky Blinking LED by system working at 180MHZ
CCAN CCan_SimpleTxRx CAN communicationg (Connect CAN0 and CAN1)
Cortex-M3 CortexM4_Mpu MPU test
CortexM4_Privilege Switch privilege and non-privilege mode
EMAC Emac_EasyWeb Demonstrate WEB application running
EMC Emc_NorFlash External NorFlash read/write test
Emc_Sdram External SDRAM read/write test
GPDMA Gpdma_Flash2Ram GDMA testing, from FLASH to RAM
Gpdma_LinkList Use GPDMA Link-list
Gpdma_Ram2Ram GPDMA,RAM to RAM
GPIO Gpio_LedBlinky GPIO driver LED blinking
I2C I2c_Master Read/Write UDA1380 via I2C
I2S I2s_Audio Output audio via I2S
LCD Lcd_Demo Display color streak, icon moved by touch
NVIC Nvic_Priorities Configure NVIC priority level test tail-chaining/Late-arriving interrupt mode
Nvic_VectorTableRelocation Vector table relocation
OTP OTP_API OTP downloading test (development board can only boot from running code, SPIFI  boot, please do it by carefully )
PWR Pwr_DeepPowerDown Fall into deep sleep mode and wake up from RTC
Pwr_DeepSleep Fall into deep sleep mode and wake up from WIC
Pwr_PowerDown Wake up by EVRT from power down mode
Pwr_Sleep Wake up by WIC from sleep mode
RIT Rit_Interrupt Driver LED by RIT timer interrupt
RTC Rtc_Alarm Generate 1min and 30s Alarm interrupt
Rtc_Calibration Calibration RTC
SDIO sdio_readwrite SDCard Read/Write test
SPIFI SPIFI_Test Read/Write external SPIFI Flash
SSP Ssp_Master SSP transfer data as host
Ssp_Slave SSP transfer data as slave
TIMER Timer_Capture Timer capture
Timer_FreqMeasure Timer measure frequency
Timer_MatchInterrupt Timer interrupt test
Timer_MatchPolling Timer match Polling
UART Uart_Autobaud UART auto-baud test
Uart_Dma UART data via DMA test
Uart_Interrupt UART interrupt
Uart_Polling UART polling test
Uart_Rs485Master RS485 host test
Uart_Rs485Slave RS485 slave test
USBDEV Usb_Cdc USB simulate COM
Usb_MassStorage Read/Write mass storage memory
USBDEV_ROM Usb_Composite Read/Write USB composite device(Mass Storage, HID,DFU)
Usb_Dfu To be updated
Usb_Hid Writing USB HID device
Usb_MassStorage Writing USB Mass Storage
WDT Wdt_Interrupt Interrupt by WTD by setted time

Relative Download and Links

You can download relative chip datasheet, products datasheet, user manual, software package from below. Any inquiry, please contact MYIR.

1 MYD-LPC185X Development Board Overview 478 KB
2 MYD-LPC435x/185x Schematics 232 KB


MYD-LPC185X Development Board (can be MYD-LPC1850 or MYD-LPC1857)

Price and Ordering


Part No.

Unit Price


MYD-LPC1850 Development Board



Out of Stock

MYD-LPC1857 Development Board



Out of Stock

MY-LCD43TP 4.3 inch LCD Module with resistive touch screen (optional)



MY-LCD70TP 7 inch LCD Module with resistive touch screen (optional)



Note: Discount is available for mass orders. Please contact MYIR for inquiries.

Packing List

NO. Item Qty Description
1 MYD-LPC185X board 1pc MYD-LPC1850/MYD-LPC1857
2 Ethernet cable 1pc
3 USB Cable 1pc
4 Serial cable 1pc DB9 to DB9
5 DVD 1pc user manual, schematic in PDF format, datasheet, software package

More FAQ >>

1. Error: Flash Download faild - Target DLL has been cancelled

Hello, when I use MDK to download problem, it appears below error: Error: Flash Download faild - Target DLL has been cancelled What's the problem?


This is mainly caused by reset settings. Please select "SYSRESETREQ" in Reset settings of "Cortex-M Target Driver Setup".

More FAQ >>