| JTAGcable II |
In Circuit Emulator for Atmel AVR
microcontrollers, with USB interface. |
Features | Supported devices | Technical data | Buy JTAGcable II
JTAGcable II is a tool for programming, real-time emulation in the target circuit and debugging of processors of the AVR family of Atmel microprocessors, equipped with an JTAG interface. It is fully compatible with the original AVR JTAG ICE from Atmel. Together with AVRStudio forms an up-to-date and professional environment for the start-up of programs written both in low-level (Assembler) and high-level (C) languages.
JTAG is a four-wire interface permitting takeover of control of the processor's core and its internal peripherals. The possibilities offered by this interface are, among others, stepped operation, operation at full speed, circuit and software traps, monitoring and modification of register contents and data memories. Moreover, functions offered by ISP programmers are available, such as: programming and read-out of Flash memories, EEPROM, fuse-and-lock bits.
JTAGcable II can co-operate with microcontrollers supplied with voltages from 1.8 to 6 V. Such a broad range of supply voltages was achieved through buffering of signals on the JTAG line, additionally enhancing the immunity of the circuit to interference. The set is provided with AVRStudio software from Atmel, working in the Windows system.
A detailed operating instruction of the emulator and of the AVRStudio program can be found at the website of Atmel: http://www.atmel.com/dyn/resources/prod_documents/DOC2475.PDF
Features
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Compatible with AVR JTAG ICE
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Co-operates with Atmel AVRStudio software
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Allows emulation and programming in AVR microprocessor systems equipped with a JTAG interface
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Allows debugging of a code written both in Assembler- and C-language
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Connection to PC through USB port
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Supports software upgradeing from the AVRStudio level
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Operates with target voltages in the range of 1.8 - 6 V
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Buffering of the JTAG bus, allowing proper operation with systems powered from a broad range of supply voltages and enhancing immunity to external interference
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Operation of the emulator signalled by three built-in LED indicators
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Standard 10-pin connector to the target circuit in the Atmel standard
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No need for external power supply, power is taken from USB
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The programmer can supply power to target circuit
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Small dimensions
Connection with the target circuit
The connection to the target circuit should be realized through the attached 10-lead ribbon cable, terminated with standard IDC plugs with 2.54 mm raster. In case of using another cable it should be kept in mind that it should not be longer than 30 cm (~12 inches). The target device should be equipped with a JTAG connector with lead-out identical to that of the emulator JTAG connector. JTAG connector is compatible with Atmel standard.
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DESCRIPTION OF TERMINALS
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TCK |
Test Lock - clock signal for the target circuit |
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TDO |
Test Data Output - data signal for the target circuit |
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TMS |
Test Mode Select - switching signal for the target circuit |
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VCC |
Power supply from target circuit |
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TDI |
Test Data Input - data signal from the target circuit |
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Vref |
Line signalling the presence of supply voltage in the target circuit |
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NSRST |
Reset input/output of taget circuit |
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NTRST |
Not used |
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GND |
Programmer ground |
Supported devices
Below is a list of devices supported by the emulator. As new devices appear, the list is going to be modified. The current list is always available in the AVRStudio program.
- ATmega128, ATmega128L, AT90CAN128
- ATmega64, ATmega64L
- ATmega32, ATmega32L
- Atmega323, Atmega323L
- Atmega16, Atmega16L
- ATmega162, ATmega162L, ATmega162V
- ATmega165, ATmega165V
- ATmega169, ATmega169L, ATmega169V
Technical data
| Dimensions |
(55 x 53 x 16) mm |
| Weight |
about 0.1 kg |
| Connection to the PC |
USB bus 1.1 or 2.0 |
| Transmission speed |
max. 115200 bps |
| Programming cable |
length 30cm |
| JTAG clock frequency |
max 250kHz |
| Target supply voltages |
VTG 1.8V - 6.0V |
| Power for the target circuit |
VTG 4.2V - 5.5V , Is max 50mA |
| Supply current from USB |
Ip max 50mA |
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Download
Buy JTAGcable II
Price
Contents of delivery package:
- JTAGcable II emulator
- Cable terminated with IDC 10 plugs for connection of the emulator with the target circuit
- USB cable for connection of the emulator with a PC
- CD with documentation and software
Note: Net prices
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