This allows the spektrum and sbus receiver drivers to bind
directly to the usart layer using a properly exported API
rather than overriding the interrupt handler.
Bytes are now pushed directly from the usart layer into the
com layer without any buffering. The com layer performs all
of the buffering.
A further benefit from this approach is that we can put all
blocking/non-blocking behaviour into the COM layer and not
in the underlying drivers.
Misc related changes:
- Remove obsolete .handler field from irq configs
- Adapt all users of PIOS_COM_* functions to new API
- Fixup callers of PIOS_USB_HID_Init()
Each channel was previously tracking a separate driver.
Now, channels are grouped within a channel group to save
RAM used for tracking and to better reflect how channels
are actually mapped.
the throttle is < 0. This will make things like axis-lock work while armed
without throttle. HOWEVER don't hold your stick in the arming position for a
long time or you can wind up the integrals now.
zero and making the attitude get NaN. Wrote recovery code for that condition
(should never occur) and also force minimum dT to 1 ms (also shouldn't occur)
Also reduce heap has it does not fit in SRAM anymore (not with current compiler).
(that's ok since if there is more space available, it will be reclaimed).
Merge branch 'master' into OP-423_Mathieu_Change_Init_To_Reduce_Memory_Footprint
Conflicts:
flight/CopterControl/System/inc/pios_config.h
flight/Modules/ManualControl/manualcontrol.c
All receivers now fall under the same driver API provided
by pios_rcvr.c.
This is part of a larger sequence of commits that will
switch the receiver selection over to boot time dynamic
configuration via UAVObjects.
high RateKp terms. However it might be sensitive to gyro noise (vibrations).
In addition it is mathematically similar to lead shapign so probably only use
one or the other.
stabilization output a bit more resilient to the high frequency noise from
gyros. However this value shouldn't be too high as it will increase the phase
delay of the feedback loop and decrease stability. Default is 5 ms.
Note: this resests the stabilizationsettings object. Sorry guys.
Also implement some ordering (quite ugly still) in the module init and task creation order so we can decide which module to start/init first
and which module to start/init last.
This will be replaced/adapter with the uavobject list later (once it's implemented).
reserving some space for module init and task create parameters to customize module/task creation (this will be usefull once we get the list and customization from customer).
Changes have been made for OP and CC. Tested comped with CC,OP, sim_posix.
Only ran on bench with CC for couple of minutes (code increase expected but no dropping of stack which is good).
This gives task creation at the time wherethe all heap is available.
heap reamining is low (about 500) but stacks can be ajusted (specially the 200 bytes from system) to give the level close to 1Ko if needed.
Merge branch 'master' into OP-423_Mathieu_Change_Init_To_Reduce_Memory_Footprint
Conflicts:
flight/CopterControl/System/inc/FreeRTOSConfig.h
flight/CopterControl/System/inc/pios_config.h
- create linker section for those <module>Initialize()
- later this list will incorporate parameters as well. (this probably will be more a OP feature to swap/remove/delete module on the fly.
- this is not done at compile time anymore by Makefile.
- this will allow us to have control on the module start at run-time (not implemented but build the ground for it).
- this simplify the startup (Part of code re-org).
- this change does not affect sim_posix and win32 (since they don't need that)
- ensure it's compiling for PiOS.posix
- port to PiOS.win32 but not tested (not compiled)
- tested on CC
- compile on OP.
- this free ~200 bytes.
- current avalable bytes (is we keep the same remaining bytes on the stack than before) is easily passed the 1.2Ko mark on CC with new gcc (4.5.2)
- this does not include init-reorg for each module (I still think more can be freed)
- use IRQStack for ISRs (at begening of SRAM) (let's call it the irq stack)
- use end of heap for stack needed during initialization (let's call it the init stack).
- the systemStats in GCS indicate the remaining bytes in the IRQ stack (this is realy usefull to monitor our (nested) IRQs.
This is the base ground to provide as much memory as possible available at task creation time.
Next step is to re-organize the initialization in order to move all the init out of the thread's stacks onto the init stack.
This will provide as much memory as possible available at task creation time.
Basically the stack during initialization will be destroyed once the scheduler starts and dynamic alloc are made (since the init stack is at the end of the heap). We will need to make sure we don't clobber the heap during initialization otherwise this will lead to stack corruption.
