*Opinions* Choosing a uP for a project

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*Opinions* Choosing a uP for a project

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Eviljosh
Contributor I

Hello,

 

I'm looking to utilize one of the HCS08 devices to run a small project. The device would need to communicate with a wireless sensor (through a MC13201), control a rather large COG LCD (Graphic 112x 64 dot matrix with onboard controller IC [parallel interface], and run off of a coin cell lithium battery. 

 

Inputs to the device would be 3-5 buttons along with the data from a wireless sensor. 

 

Right now I'm looking at one of the HCS08L series (LC,LL,LG) however the S08QE has also caught my eye. 

 

I'm rather new to freescale's lineup of processors so I'd appreciate any comments folks have on the HCS lineup, whether suggestions on choosing one of the ones I specified or even considerations on other lines. Being an engineer I'll denote what I really care about in order that I care about them:

 

Ability to communicate with the items above

Battery life

Size (the smaller the better)

Cost

Availability of demonstration boards/reference designs 

Flexibility for future designs

 

Thanks for those that take the time to post,

JG

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Eviljosh
Contributor I

Wow, that's exactly for which I was hoping.

 

The MC1321x series is perfect, and I had not even seen it before since it's buried in the RF section of Freescales website. 

 

It looks like I could make minor changes to the Zstar3 reference design and be out of design work months before I originally though. My sincere thanks!

 

JG

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bigmac
Specialist III

Hello JG,

 

I assume that the LCD drive capability of the 'LC60 would be of little use since the LCD you are using incorporates its own controller.  If you are using the 2.4 GHz band for the wireless device, an alternative choice might be from the MC1321x series, which incorporate the wireless transceiver and microcontroller in the same package.  It will depend on whether the resources are sufficient for your application, i.e. how much RAM, flash memory, and GPIO you require, in addition to the wireless communications coding component.

 

Regards,

Mac

 

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Eviljosh
Contributor I

Wow, that's exactly for which I was hoping.

 

The MC1321x series is perfect, and I had not even seen it before since it's buried in the RF section of Freescales website. 

 

It looks like I could make minor changes to the Zstar3 reference design and be out of design work months before I originally though. My sincere thanks!

 

JG

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