2013-05-13 10:46 AM
I'm using the STM32F407 in a new design and due to a conflict of peripheral pin assignments (Why isnt there more clk pin assignment flexibility?) I cannot use the JTDO pin of the device for JTAG. I think my only option is to use SWJ, which I have never done. I'd like to know what the tradeoffs are and if I need different programming hardware (Other than ST-Link/V2) and anything else I may need to know. I have to go straight to production hardware manufacture with this.
Thanks2013-05-17 12:36 PM
''I need my questions answered specifically.''
Pardon - perhaps if you'd then ask w/some specifics - such would be supplied... 4K7 - 10K have been used by our group, multiple clients - appear to work well. ''Either the internal ones work or they dont.'' I bow to your superior knowledge & MCU experience. (if you read with some comprehension - our experience teaches - despite your ''wish/hope'' - that such is not at all times - under all conditions - the case!) Leave to others the pleasure of further ''appreciative'' discourse...2013-10-07 06:19 AM
I'm trying to figure out how to make a jtag circute for a STM cortex M4.
Where would i find a document describing which pins can be used for JTAG /SWD ?2013-10-07 08:26 AM
ARM has a lot of documentation.
ST has pin level documentation for the STM32 parts in the Data Sheet/Manual for each of the specific devices. Review some eval board schematics to understand some workable wiring configurations.2013-10-07 11:33 PM