Way too much was being exposed in the API for the
HMC5843. This commit properly hides internal
details of the driver.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1629 ebee16cc-31ac-478f-84a7-5cbb03baadba
The DRDY signal from the magnetometer is connected to PB8
on the STM32. This pin is now configured as an external
interrupt and is now used to signal when new data is
available from the magnetometer.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1628 ebee16cc-31ac-478f-84a7-5cbb03baadba
I2C bus errors are now recoverable. The bus is properly reset
and an error indication is now provided to the caller whenever
a bus error occurs during processing of the transaction list.
For now, the users of the I2C layer just retry infinitely on
failure. The BMP085 and HMC5843 code should be changed to
report errors to its callers to allow a more sensible retry
strategy.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1625 ebee16cc-31ac-478f-84a7-5cbb03baadba
AUTO transitions in the FSM are now handled immediately
after processing each newly injected event rather than only
at the end of the EV ISR.
This consolidation allows the upcoming addition of event
injection from both the EV and ER ISR contexts.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1624 ebee16cc-31ac-478f-84a7-5cbb03baadba
Occasionally, the I2C driver races with the STM32 I2C peripheral
at the end of a bus cycle. This leaves the bus in an errored
state and the stop condition is not properly asserted on the bus.
The polling for the stopped condition was previously implemented
in ISR context since it was expected to be nearly instananeous.
In the error condition, however, the stop condition will never
happen. The polling for this case is now done by the initiating
task (or mainloop on the AHRS) to prevent the timeout condition
from triggering the watchdog.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1623 ebee16cc-31ac-478f-84a7-5cbb03baadba
The info field in the pios_i2c_txn list can now be used
to provide a const string which describes the context
for this transaction.
This is very helpful when diagnosing an error that occurs
somewhere in the middle of the I2C FSM since the FSM runs
primarily in the ISR where the original context for the
transactions is no longer available in the traceback.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1622 ebee16cc-31ac-478f-84a7-5cbb03baadba
Differentiate the _FSM_ faulted from the (soon to
exist _BUS_ faulted state.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1621 ebee16cc-31ac-478f-84a7-5cbb03baadba
Implement low-level utility functions for sending/receiving
the opahrs proto v0 (bootloader) messages. These are used
by the OP firmware loader and the AHRS bootloader.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1586 ebee16cc-31ac-478f-84a7-5cbb03baadba
Some functions were returning -1 instead of one of the
valud enum values.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1585 ebee16cc-31ac-478f-84a7-5cbb03baadba
This cleans up some of the boiler plate code that is
repeasted for simple (empty) requests that expect a
response.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1584 ebee16cc-31ac-478f-84a7-5cbb03baadba
The number of retries and delay between retries was
increased in a previous commit. This doesn't appear
to be necessary so I'm reverting the increases.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1432 ebee16cc-31ac-478f-84a7-5cbb03baadba
No functional changes. Whitespace/tab fixups only.
Use TRUE/FALSE instead of 1/0.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1430 ebee16cc-31ac-478f-84a7-5cbb03baadba
No need to have boolean flags being floats.
Some of the attitude message was being populated twice.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1428 ebee16cc-31ac-478f-84a7-5cbb03baadba
1. Added reenumeration function and call it on USB init (device will appear after reprogramming now)
2. Moved buffer.c to general flight/Libraries location
3. Removed the 62 byte transmission limitation by adding a transmission buffer
4. Sped up USB communication by increasing endpoint polling frequency
Note, that the nonblocking and blocking USB send functions are not blocking entirely correcting. The blocking calls the nonblocking, and the nonblocking blocks until the last chunk has started tranmission if it's a big transmission. The buffering I added would generalize to non-blocking nicely, but would require using the EP1(IN) callback to handle most of the tranmission. This creates a lot of issues if one function is pushing data onto the buffer and the interrupt is sending.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1403 ebee16cc-31ac-478f-84a7-5cbb03baadba
Issues have been reported with CRC errors
on the SPI link between the OP and AHRS
boards. Slowing the link down eliminates
the errors in my testing.
If we speed this link back up in the future,
further investigation will be required to
diagnose the source of the CRC errors.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1356 ebee16cc-31ac-478f-84a7-5cbb03baadba
