Re: [Paparazzi-devel] SPI transaction queue driver for Lisa/M and other STM32F10x based autopilots

[Felix Ruess]

ah, and I deleted the aspirin2 branch to avoid more confusion, as it is merged into dev ~2 weeks ago.

Andre, if you didn't already see that 4.0_beta has SPI transactions (for stm32), you probably haven't pulled 4.0_beta for about 2 weeks as well.

On Sun, Feb 26, 2012 at 4:16 PM, Felix Ruess <address@hidden> wrote:

yes, aspirin2 branch was merged into dev (and 4.0_beta is essentially dev + more)

As Gautier said LPC21 support is probably still needed.

On Sun, Feb 26, 2012 at 11:51 AM, Christophe De Wagter <address@hidden> wrote:

the aspirin2 branch also has a transaction based spi and was merged into beta 4 I think. Probably needs some merging.

On Feb 26, 2012 10:57 AM, "Gautier Hattenberger" <address@hidden> wrote:

Hello Andre,

This is very interesting, could you at least push your work to a public repository and send us the link ? You can also make a pull request (into 4.0_beta seems a good idea) but it will probably need more work before actually merging it as we also need the lpc21 support for this need driver.

Gautier

Le 25/02/2012 20:33, Andre Devitt a écrit :

I've updated the SPI driver in my local code base for the STM32
architecture to use a similar queuing mechanism as the I2C driver as
well as supporting multiple slave devices.

Basically I created an SPI peripheral similar to the i2c_periph_t and
implemented the queue and spi_subtmit(spi_periph_t* p,
spi_transaction_t* t). Changes to the arch-independent code was to add
a slave index to the spi_transaction_t and an enumerated type
SPIStatus to indicate whether the SPI bus is running or not.

I've tested with 3 devices on the SPI2 bus and have not had any problems.

Should I submit a pull request for this change, and if so what branch
(I'm currently working off the 4_0.beta branch). In terms of other
peripherals I believe it will only affect the imu_aspirin2 subsystem
as that seems to be the only code using the stm32 spi_arch driver. I
am happy to change the imu_aspirin2 driver to use the new driver as
well but do not have an aspirin2 to test on.

Andre.

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