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DfuSe Demo does not seem to upload DFU files to processtor

Question asked by hicks.richard.001 on Mar 15, 2013
Latest reply on Aug 5, 2013 by m.evgeny.001
I have installed DfuSe Demo (v3.0.0) . On connecting a STM3200G-EVAL board & setting the boot options & then pressing reset, the program says I am in DFU mode and gives the Vendor Id 0483 and the Product ID DF11 and Version 211 all OK. I can select a DFU file without problem.
however, when I press Upgrade or verify, the software says it works, (see below) but does not actually seem to do anything.  The original software is still present.Dfu%20claims%20to%20work.PNG

to continue, I had overwritten the flash (using a Keil compiler & JTAG) with a "hullo world" program; this confirmed that DfuSe was not writing anything at all. and, the original DFU was very good as a self test program, so I would like to get back to it. Until of course my test software is improved.