I-jet integrates seamlessly into IAR Embedded Workbench and is fully plug-and-play compatible. It provides a fast debugging platform and the possibility to measure target power consumption with a high degree of accuracy. The Power Debugging capabilities can be extended withI-scope, which adds current and voltage measurement.
I-jet with included cables and adapter
Key features
Supports ARM7/ARM9/ARM11 and Cortex-M/R/A cores
Seamless integration into the IAR Embedded Workbench IDE (IAR Embedded Workbench for ARM version 6.30.8 or later)
Fully plug-and-play compatible
Hi-speed USB 2.0 interface (480Mbps)
No power supply required, powered entirely by the USB port
Target power of up to 400mA can be supplied from I-jet with overload protection
Target power consumption can be measured with ~200µA resolution at 200kHz
JTAG and Serial Wire Debug (SWD) clocks up to 32MHz (no limit on the MCU clock speed)
Serial Wire Viewer (SWV) with UART and Manchester encoding
Support for SWO speeds of up to 60MHz
Download speed of up to 1MByte/sec
Automatic core recognition
Support for multiple JTAG devices with automatic chain detection and graphical display
Support for JTAG adaptive clocking (RTCK)
Automatic JTAG/SWD detection
JTAG voltage measurement and monitoring
Supports target voltage range from 1.65V to 5V
Support for Micro Trace Buffer (MTB) for ARM Cortex-M0/M0+
I-jet and I-jet Trace has a MIPI-20 connector on the front panel and come with MIPI-20 and MIPI-10 cables, as well as a legacy ARM-20 adapter. For I-jet Trace, only the MIPI-20 cable supports the ETM trace functionality, MIPI-10 and ARM-20 are for plain JTAG/SWD/SWO debugging. For details on the connectors, see the user manual.
In addition, the following adapters are available from IAR Systems to fit different target connectors:
ADA-MIPI20-TI14 Adapter
ADA-MIPI20-CTI20 Adapter
ADA-MIPI20-ISO Adapter
I-scope for Power consumption in-target analysis
I-scope adds current and voltage measurement capabilities to I-jet and I-jet Trace. The measurements can be done at any designated points on the target board and are displayed in real-time by the C-SPY Debugger in IAR Embedded Workbench.
I-scope measures current and voltages and sends it to I-jet, which synchronizes the data with the program counter of the running application. The data can be graphed and profiled in real time and analyzed using C-SPY. The current sensing is done by connecting two differential current measurement leads across a shunt resistor on the target board.
Use the power analysis to:
Reveal the power consumption of individual functions and peripherals
Identify I/O activities that cause current spikes
Diagnose low power mode
Investigate MCU frequency and core voltage power savings
Find conflicting hardware setup
Reduce RF emissions by identifying and eliminating unwanted current spikes
Measure and compare battery consumption in various MCU sleep modes
Specifications
I+ and I- differential voltage, 110mV full scale across shunt resistor
One differential current channel, 0-6V common mode
Three voltage channels, 0-6V
Sampling rate up to 200 kHz with 12 bit resolution
Includes one MIPI-20 flat cable for attaching to the I-jet
Includes 6 flying test leads and 6 grabbers
Supports all ARM cores
Please note: I-scope is used in combination with I-jet or I-jet Trace.
