About cemer

cemer · 2013-07-29

Posted on July 29, 2013 at 16:07Hi, I am testing the usb lib 4.0.0 for the VCP functionality on STM32L15xVB targets with 1.3.1 drvier on Win7 hosts. I tried two tests with both usart bridge and loop back examples and unfortunately seeing the same is...

cemer · 2015-02-23

Posted on February 23, 2015 at 09:26I am using GCC 4.7.3 + GDB 7.4.50 + JLink. Here is the first 8 bytes: 00 80 00 20 85 8B 01 08. nRST_STDBY = OB_STDBY_NoRST nRST_STOP = OB_STOP_NoRST

cemer · 2015-02-22

Posted on February 22, 2015 at 20:07Ok, here is some more information: I did several tests under different conditions. Not finished yet. Sor far, it seems that the problem only occurs in debug mode. When there is no debugger attached to the device, ...

cemer · 2015-02-20

Posted on February 20, 2015 at 12:48Thanks for the reponses. Clive, each time the hardfault is hit, the main stach contents are different, i.e. potentially a random content. When I checked the process stack, it consistently shows the WFI() call righ...

cemer · 2015-02-19

Posted on February 19, 2015 at 19:31Hello Ampa I have just vitnessed the same issue right after moving to L151VC from L151VB. When I remove the WFI instruction the problem seems to disappear. I am looking for a better solution. How did you solve you...

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Problem with USB lib

Re: Hard Fault-> INVALID STATE when calling WFI() STM32L

Re: Hard Fault-> INVALID STATE when calling WFI() STM32L

Re: Hard Fault-> INVALID STATE when calling WFI() STM32L

Re: Hard Fault-> INVALID STATE when calling WFI() STM32L