ADK-6131API: HI-6131 Application Development Kit with API Library



Evaluation Kit Contents

  • User Guide.

  • Holt Demo and Holt API Software Projects and Documentation CD.

    • HI-613x API LIB runtime library.

    • HI-6131 API Demo example project.

  • Installation CD for IAR Systems Embedded Workbench® for ARM, version 7.1 or greater. See installation guide “Holt HI-6131 API project installation guide” for important instructions.

  • Plug-in 5V DC power supply and USB debug interface cable.

  • RS-232 serial cable, DB-9M to DB-9F for console I/O using a connected computer.

  • 2-board assembly comprised of: 

    • Upper TARGET board with HI-6131 device and dual transformer-coupled MIL-STD-1553 bus interfaces. Numerous DIP switches configure board operation.

    • Lower MCU board with ARM Cortex M3 16-/32-bit microprocessor, debug interface and regulated 3.3VDC power supply.



Hardware Design Overview


The detachable HI-6131 board can be separated from the provided MCU board for connection to a user-supplied alternate microprocessor or FPGA board. The inter-board headers are located on 0.1” (2.54 mm) grid for compatibility with generic prototyping boards. All host interface signals go through the inter-board headers. Numerous HI-6131 configuration pins (and the Remote Terminal address setting pins) are controlled by DIP switches on the upper HI-6131 board; these signals are not available on the inter-board headers.


The lower ARM Cortex M3 board is based on the flash-programmable Atmel AT91SAM3U-EK microprocessor. A 4-signal Serial Peripheral Interface (SPI) clocked at 16MHz (20MHz is possible) connects to the HI-6131. A UART-based serial port provides RS-232 console I/O (optional). An uncommitted USB 2.0 port is available for future expansion. Two pushbuttons are available for software interaction. A RESET pushbutton resets the ARM microprocessor, which in turn controls the HI-6131 Master Reset signal.


The ARM Cortex M3 board includes “J-Link On Board” debug interface, licensed from, providing out-of-box readiness without having to buy a costly JTAG debug cable. The kit includes a simple USB cable for connecting the board’s debug interface to your computer. (For users already owning an ARM debug interface with ribbon-cable connector, an ARM-standard 2x10 debug connector provides debug connectivity. In this case, jumper JP2 on the bottom of the lower board should be soldered closed to disable “J-Link On Board”).


The 64K serial EEPROM is not demonstrated on this kit. For information on the AUTO initialization feature of the HI-6131 using the EPPROM see document AN-6131.pdf for the non-API version of the demo kit software.