On Sun, 22 Nov 2009, Chris Morley wrote:

> Date: Sun, 22 Nov 2009 03:01:32 +0000
> From: Chris Morley <[email protected]>
> Reply-To: EMC developers <[email protected]>
> To: EMC DEV <[email protected]>
> Subject: [Emc-developers] Mesa daughter board support
> 
>
> I think at this time only the 7i33 7i37 and 7i42 are fully supported
> in EMC.
> Am I right?

Well, the brush motor Hbridges are supported as well (7I30,7I40,7I29)
only difference with these and 7I33 is:

Daughter card   Optimum PWM mode

7I33(T,TA)      PDM 6 MHz
7I30            Straight PWM ~20 KHz
7I40            Straight PWM ~20..50 KHz
7I29            Straight PWM ~20 KHz

7I48 is different in 2 ways, it uses the multiplexed encoder module and uses 
up/down PWM mode

The driver does not currently support the muxed encoders (but support should 
be trivial, the muxed encoders have the same register set as normal encoders, 
just a different base address and tag so the driver knows the difference) Also 
one additional output pin needs to be enabled (the "mux" pin) for muxed 
encoders.

7I65 is also not supported by the driver yet, it has both muxed encoders and 
SPI ADCs, DACs, and Enables. SPI support is a fairly good sized project, but I 
think it's manageble if the daughter card specific SPI setup and SPI data 
munging is done in a HAL component, and just the low level bulk data I/O done 
by the driver.



>
> Will the:
> 7i48 (6 channel servo card) or
> 7i65 8 channel card
> be supported in the nearish future?
>
> I will add the info I get to the wiki.
> Thanks
> Chris M
>
>
> _________________________________________________________________
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Peter Wallace
Mesa Electronics

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