Texas Instruments AM DM37x CPU Support

CPU Support Library for ScanExpress JET

Texas instruments AM/DM37x Sitara™ and DaVinci™ digital media processors include high performance interfaces to a host of peripherals-peripherals that may be inaccessible to external probes, but are still at risk of faults and require thorough tests. With Corelis’ JET technology, the same CPU used to run your system can be leveraged to functionally test, verify, and program these peripherals-non-intrusively and at-speed.

Corelis ScanExpress JET makes full use of the ARM Cortex™-A8 core; by taking control of the AM/DM37x JTAG port, ScanExpress JET can provide convenient development and execution of the complete Corelis functional test suite for supported system peripherals.

Standard and Custom Tests

TI AM/DM37x CPU Support for ScanExpress JET includes automatic test generation for commonly used peripherals.

  • CPU Initialization – Test basic communication and functions of the CPU.

  • SDRAM – Execute a full suite of at-speed SDRAM tests to catch hard-to-find faults.

  • NAND & NOR Flash-Test and program Flash using maximum CPU clock speed.

  • I2C Discovery – Scan the I2C bus to identify and communicate with connected devices.

  • UART Loopback – Verify UART communication via a simple loopback cable.

  • Ethernet Loopback – Test Ethernet functions using a simple loopback cable.

  • Power Management IC (PMIC) – Ensure that the power management system is fully functional.

Custom Tests

The ScanExpress JET development system includes a powerful scripting language and integrated script debugger; write your own tests or load compiled code right from the JET integrated development environment.

ScanExpress JET - Texas Instruments AM DM37x CPU Support

Supported Processors

AM37x – TMS320AM3703, AM3715
DM37x – DM37xx, DM37xx


Test Engineers

JET is able to increase board test coverage by quickly combining boundary-scan testing with at-speed functional testing.

Design Engineers

JET assists in prototype debug before test firmware or test fixtures are available

Firmware/Software Engineers

JET is able to save coding time through automatic test and diagnostic generation.

Field Application Engineers

JET can be used to field validate a customer board or upgrade firmware on-site.

Repair Engineers

JET can identify board failures quickly reducing the repair cost per unit.

ScanExpress JET - Texas Instruments AM DM37x CPU Support

ScanExpress JET 13 Point Benefit

The JTAG Embedded Test (JET) method extends coverage beyond popular boundary-scan techniques to virtually every signal of the UUT that is accessible by on-board CPU(s). This includes most of the remaining non-scannable, analog and I/O port resources.

Ordering Information

Part Number—20731

JET Family Support Package for Texas Instruments AM/DM37x Processors.

Part Number—20700

ScanExpress JET Test Development System supporting both Test Program Generation and Execution.

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If you would like assistance with implementing JTAG testing in your design, or you are simply short of resources, our talented and experienced engineering staff can help you with all your JTAG needs.

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