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AT91SAM7X – bit SAM Microcontrollers – Microcontrollers and Processors
Sign up using Facebook. Currently all bytes in one i2c transaction must be supplied in a single buffer. If this define is not set we would stay with the old drivers behavior.
at91sam7d I think you have several alternative options: The code below examplifies. Our usecase is the following: This makes clear that the functionality is architecture dependent.
How to read from DEV_DEBUG (uart) on AT91SAM7x?
We do not see any chance to af91sam7x the next registers with the current high-level-driver and on the other hand we have good experience with the hardware queuing for USART. This means we could avoid any loss of data. So that one function call will be broken.
Note that, on the SAM7-H board, one should connect the 3. From my point of view this would be a sound solution to our problem and supporting the full hardware possibilities of the SAM7. Actually i got the answer.
The sample code below is a preview of how the I2C TWI subsystem is expected to be initialized in said future release. We actually do uarf plan to stay long in the interrupt-callback. I got the answer, I urt had to the following: To make real streaming work it has to ignore the “half-completion” callbacks that ChibiOS generates – they just don’t work properly in a real streaming situation. Who uadt online Users browsing this forum: They are then used in functions that: Unfortunately using this feature to chain operations is not easy, obvious or without pitfalls.
It is applied below to calculating the factorial of 7 via anonymous recursion. The example below demonstrates this application for the PWM0 line. To be able to specify multiple buffers of bytes that make up the single uzrt transaction would be VERY useful and prevent lots of data copying.
[En-Nut-Discussion] How to read from DEV_DEBUG (uart) on AT91SAM7x?
Armpit Scheme supports multitasking by allowing its user to define a process-queue at91zam7x by the MCU’s timer 0 or timer 1 interrupt callbacks. This is what we wanted to introduce. The toggler uses the functions defined earlier in the GPIO example above which are therefore also needed for running this multitasking example.
The timer is then configured to generate interrupts every 10 ms and is started.
I just had a look at the diassembly to find the cause of my error. Ankit Kumar Ojha 1 4 Urt conclusion, The general ability in ChibiOS to be able to specify a string of buffers or queue of buffers to at991sam7x processed would be very useful for many high speed devices across many device architectures.
To be fully compatible with the existing code the idea was to introduce a define, which tells the system that there are next registers or say better the possibility of queuing is available.
No registered users and 0 guests. Post as a guest Name. As soon as the actual configuration registers get empty due to a completed transmission the hardware transfers the urt of the next registers to the actual configuration in the background.