USB on stm32f103
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‎2015-01-19 3:39 PM
Hi,
I'm trying to use a mass storage example taken from herehttp://www.st.com/web/catalog/tools/FM147/CL1794/SC961/SS1743/LN1734/PF258157
. When I'm executing, at startup the driver gets a SUSP, RESET and ESOF interrupt causing it to first reset then suspend and it stay indefinitly suspended. When debugging I noticed that in the PowerOn method executed at startup (just before interruption control register setting) the instruction_SetISTR(0);
does not write the entire register to zero.
So three questions:
1: Is it possible that my observation comes from the time needed by the debugger to read the register, a single step on the instruction, causing new interrupts to occures ?
2: If no, does my problem could come from here ?
3: Anybody got this mass storage exemple working ?
Thank you in advance for your help.
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‎2015-01-19 7:48 PM
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‎2015-01-20 8:48 AM
...searching for the example code can you please provide that code for me.
He cited a specific library with examples, download THAT. Review also the firmware libraries for the EVAL series boards, and the examples therein.Up vote any posts that you find helpful, it shows what's working..
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‎2015-01-20 11:29 AM
Click on my link and go to the bottom of the page, you'll see a download button. Once you downloaded the file you'll find everything you need in it. Thanks to MCD Application Team.
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‎2015-01-22 11:36 AM
So nobody with a little bit of experience in USB on cortex (or not) can give a piece of advice how to understand why my device enters in suspended mode right after startup reset ?
It will be really appreaciated because its drives me crazy !!