Some MCUs do not include internal pull-up or pull-down resistors on JTAG/SWD pins. JTAG Test Data Output / SWV trace data output (SWO)
Use 10K-100K Ohm pull-down resistor to GND Required pull-up / pull-down (if not implemented internally by MCU) The SWD/SWV pins are overlaid on top of the JTAG pins as follows: In addition, one of the pins freed up by this can be used for the low cost SWO tracing technology - for more details see the FAQ " Overview of Trace support in LPCXpresso IDE". SWD is designed to reduce the pin count required for debug from the 5 used by JTAG (including GND) down to 3. The new software offers better supports for Windows 7 & 8 64bit and higher download speeds.Įclipse download for Xpresso Debugger (Win 8/7/Vista/XP 32 & 64 bit).Ĭygwin download for Xpresso Debugger (Win 8/7/Vista/XP 32 & 64 bit).ĭebugJet software and driver for Linux Fedora (32 Bit).ĭebugJet software and driver for Linux Fedora (64 Bit).ĭebugJet software and driver for Linux Ubuntu (32 Bit).ĭebugJet software and driver for Linux Ubuntu (64 Bit).Įclipse download for Xpresso Debugger Fedora & Ubuntu (32 & 64 Bit).JTAG was the traditional mechanism for debug connections for ARM7/9 parts, but with the Cortex-M family, ARM introduced the Serial Wire Debug (SWD) Interface. Select "Update Driver" from the pull down menu by right-clicking on the DebugJet USB icon to upgrade to latest driver. This can be done under control panel "System" menu and choosing view devices. Please make sure to reinstall the new DebugJet USB device driver if you are upgrading from any DebugJet software prior to 3.8. A linux version is also available for download.įor more DebugJet downloads and Board support packages (BSP) as well as Processor support packages (PSP), please register your DebugJet device on our website.ĭebugJet software and USB driver (Win 8/7/Vista/XP 32 & 64 bit). The Software is available for Windows XP, Vista, and Vista X64. Please use this section to download latest releases for DebugJet software and drivers.
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