[Bug 1001683] New: Cortex-M3: Startup Code does not initialize last of available interrupts vectors

[Bug 1001683] New: Cortex-M3: Startup Code does not initialize last of available interrupts vectors

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           Summary: Cortex-M3: Startup Code does not initialize last of
                    available interrupts vectors
           Product: eCos
           Version: CVS
          Platform: Other (please specify)
        OS/Version: Cortex-M
            Status: UNCONFIRMED
          Severity: normal
          Priority: low
         Component: HAL
        AssignedTo: unassigned@bugs.ecos.sourceware.org
        ReportedBy: martin.hopfeld@sse-erfurt.de
                CC: ecos-bugs@ecos.sourceware.org
             Class: Advice Request


Created an attachment (id=1954)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1954)
Fix Cortex-M interrupt vector initialization

Using an STM32F103 I ran into a HardFault exception when using DMA2_CH5 with
interrupts enabled.

It seems no interrupt handler is registered by the startup code for this
particular interrupt source. The DMA2_CH5 interrupt is the last entry in the
interrupt list according to STM32F103 reference manual.

Please see attached patch to the startup code on Cortex-M architecture to use
the correct constant (CYGNUM_HAL_VSR_COUNT) when iterating over all interrupts
and installing hal_default_interrupt_vsr().

This patch works for me and allows DMA2_CH5 to signal transfer complete by
interrupt.

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[Bug 1001683] New: Cortex-M3: Startup Code does not initialize last of available interrupts vectors

[bugzilla-daemon]

Please do not reply to this email. Use the web interface provided at:
http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001683

           Summary: Cortex-M3: Startup Code does not initialize last of
                    available interrupts vectors
           Product: eCos
           Version: CVS
          Platform: Other (please specify)
        OS/Version: Cortex-M
            Status: UNCONFIRMED
          Severity: normal
          Priority: low
         Component: HAL
        AssignedTo: unassigned@bugs.ecos.sourceware.org
        ReportedBy: martin.hopfeld@sse-erfurt.de
                CC: ecos-bugs@ecos.sourceware.org
             Class: Advice Request


Created an attachment (id=1954)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1954)
Fix Cortex-M interrupt vector initialization

Using an STM32F103 I ran into a HardFault exception when using DMA2_CH5 with
interrupts enabled.

It seems no interrupt handler is registered by the startup code for this
particular interrupt source. The DMA2_CH5 interrupt is the last entry in the
interrupt list according to STM32F103 reference manual.

Please see attached patch to the startup code on Cortex-M architecture to use
the correct constant (CYGNUM_HAL_VSR_COUNT) when iterating over all interrupts
and installing hal_default_interrupt_vsr().

This patch works for me and allows DMA2_CH5 to signal transfer complete by
interrupt.

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