LibrePilot

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stac 3eceef43d3 spi: Connect device specific DMA IRQ handlers

Mark the device specific DMA IRQ handlers as strongly linked
aliases for the genericly named interrupt vector symbol.

Here's how this works...
 * The address of the symbol DMA1_Channel2_IRQHandler is written
   into the DMA1/Channel2 interrupt vector by the linker script.
 * The startup_*.S file specifies Default_Handler() as a weakly
   linked alias for DMA1_Channel2_IRQHandler.
 * We now override the weakly linked alias with the strongly linked
   PIOS_SPI_sdcard_irq_handler().
 * This results in the address of PIOS_SPI_sdcard_irq_handler() being
   written to the vector table for the DMA1/Channel2 interrupt.
 * The PIOS_SPI_sdcard_irq_handler() function is now called whenever
   the DMA1/Channel2 interrupt fires.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1003 ebee16cc-31ac-478f-84a7-5cbb03baadba

2010-07-04 02:21:13 +00:00

artwork

OP-82: Implemented Altimeter on the PFD, some speed/cpu optimizations as well.

2010-07-01 22:28:19 +00:00

flight

spi: Connect device specific DMA IRQ handlers

2010-07-04 02:21:13 +00:00

ground

alarms: Add alarm for AHRS Communications

2010-07-04 02:21:11 +00:00

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gitignore: Ignore GNU Global (gtags) index files