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From: bugzilla-daemon@bugs.ecos.sourceware.org To: ecos-bugs@ecos.sourceware.org Subject: [Bug 1002027] New: STM32 HSI clock initialized incorrectly Date: Sat, 06 Dec 2014 22:30:00 -0000 [thread overview] Message-ID: <bug-1002027-13@http.bugs.ecos.sourceware.org/> (raw) Please do not reply to this email, use the link below. http://bugs.ecos.sourceware.org/show_bug.cgi?id=1002027 Bug ID: 1002027 Summary: STM32 HSI clock initialized incorrectly Product: eCos Version: CVS Target: stm32f4dis (ST STM32F4DISCOVERY) Architecture/Host Cortex-M OS: Status: UNCONFIRMED Severity: major Priority: low Component: HAL Assignee: unassigned@bugs.ecos.sourceware.org Reporter: mmajchrzycki@antmicro.com CC: ecos-bugs@ecos.sourceware.org Created attachment 2557 --> http://bugs.ecos.sourceware.org/attachment.cgi?id=2557&action=edit Patch to fix HSI bug in STM32 architecture In any STM32 platform, selecting internal RC oscillator (HSI) as clock source causes a generate unstable frequency. This is because the HSITRIM field in RCC_CR is cleared during clock initialization process. Restoration of the default value of HSITRIM restores generation of stable frequency by internal RC oscillator. In attachment is a patch which fixes bug that is mentioned above. -- You are receiving this mail because: You are on the CC list for the bug.
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