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IAR Embedded Workbench for RX 5.20

Communication overview

In this section:

The C-SPY J-Link driver uses USB to communicate. There are two possible hardware configurations, depending on the target board:

  • If the target board has a built-in J-Link, a USB cable connects the host computer directly to the target board.

  • If you have a separate J-Link debug probe, the probe communicates with the JTAG interface on the microcontroller as in this figure:

CommunicationJ-Link_RX.ai

For more information, see the documentation supplied with the J-Link debug probe or the target board.

When a debugging session is started, your application is automatically downloaded and programmed into flash memory. You can disable this feature, if necessary.