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Commit Graph

8 Commits

Author SHA1 Message Date
peabody124
7d7802593e Oops, sorry missed these files
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1160 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-27 08:08:50 +00:00
corvus
fa57e42efa Deleted OpenPilot.posix branch. Integrated portability modifications into main tree
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1086 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-13 16:23:41 +00:00
stac
a3a2dbd634 spi: Add support for hardware CRC generation/checking
PIOS SPI devices may now make use of automatic CRC generation
and checking on block transfers.  Only supports CRC8 for now.

Since the SPI interface CRC calculation continues across message
boundaries (ie. not reset on every transfer), we must manually reset
the CRC registers for every transfer to allow the two sides of the
link to resynchronize.

Unfortunately, resetting the CRC registers requires disabling the
SPI peripheral which must now be done on every block transfer.

Note: The last byte of the tx buffer is never sent and is assumed to
      be a place holder for the tx CRC8.
Note: The last byte of the rx buffer is expected to hold the rx CRC8.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1011 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-04 02:21:42 +00:00
stac
0e6294ca27 spi: remove internal pull-up from input data lines
The input data lines between the OP and AHRS boards had internal
pull-ups enabled.  This seemed to be causing issues early on
during development of the inter-board comms.  Not sure if this
is still necessary but this is how the current code was tested.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1006 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-07-04 02:21:26 +00:00
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
FredericG
e5c795e42b Remapped UART_AUX from PA9/10 (RX inputs) to PB6/7 (Servo output)
Rationale: (http://forums.openpilot.org/topic/800-rev-761-mkserial-adapt-to-com-usartx-pios-com-x/page__view__findpost__p__2203_)
  

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@836 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-06-20 17:48:59 +00:00
stac
771a56ca9d com/usart: generalize com driver API
- Created a pluggable COM layer
- Converted COM + USART init into static initializers
  rather than typedefs
- Generalized the USB HID COM API to match the USART
  API.
- Changed USART and COM layers to be data driven rather
  than #ifdef'ing/switching on the specifics of each port

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@760 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-06-13 04:24:26 +00:00
stac
8d015a57d0 pios spi: support both master and slave configs
Added support for SPI slave configurations to the pios SPI layer.

Converted the board specific configuration for the PIOS SPI layer to
use const static initializers rather than #defines (see pios_board.c).

SPI interface between the OP board and the AHRS is now operational at
a basic level, capable of moving simple single byte messages between
boards.  Multi-byte, CRC protected messages will be added on top of this.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@759 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-06-13 04:23:44 +00:00