Enable DBGMCU without JTAG

[carlier_bouli]

Posted on April 18, 2011 at 16:13

Enable DBGMCU without JTAG

#stm32-dbgmcu-revid-devid

[jpeacock23]

Posted on May 17, 2011 at 14:32

From the errata sheet:

The DBGMCU_IDCODE and DBGMCU_CR debug registers are accessible only in debug mode (not accessible by the user software). When these registers are read in user mode, the returned value is 0x00.

The function you call reads the IDCODE register.  That's why you see zeroes.

  Jack Peacock

[carlier_bouli]

Posted on May 17, 2011 at 14:32

Hello.

Does someone has a solution, please ?

Thank you.

[denis]

Posted on August 29, 2013 at 11:15

errata sheet says no workaround.... :\