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SHARP Memory Display Booster Pack


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Success!     The new display (LS013B4DN04) arrived in the mail today and after wasting a connector on the first board, just to find out that I also burned out a trace, the 2nd attempt did work wi

Toggling VCOM in hardware (part 3) As suggested by @@greeeg I tested the VCOM circuit with EnergyTrace. I compared two BoosterPacks. One with the TPL5100 based VCOM circuit, and one without. To maxi

Toggling VCOM in hardware (part 2)   So much for "more tomorrow"   This week turned out busier than expected. So a warning in advance: I didn't test this circuit in combination with the display y

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Ordered 10 pieces at Elecrow. Probably will take a long while.

 

And an ad-hoc poll: Of those that consider buying the PCB for the $3.50 quoted by @@bluehash, who would prefer to have the FPC connector included (not soldered!) for an additional $1.20? (I will go with the majority decision)

 

@@greeeg At least at OSH Park, inside cutouts can be drawn on the board outline layer. No extra cost.

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  • 1 month later...

The boards arrived and they look great, wonderful job by Elecrow!

post-9974-0-81081200-1394321146_thumb.jpg

 

Mounting the display with the FPC through the cutout is a bit fiddly, but other than that everything worked out as planned.

 

I ported my old memory display code to the 2553 and everything worked fine, until I sticky-taped down the display and arranged it to take the picture, when the magic smoke escaped. Literally! With a sizzling sound :sad:

 

post-9974-0-50682100-1394321545_thumb.jpg

 

Either it was dirty contacts (the display contacts had a bit of green oxidation after having spent a year in the junk drawer), or I shorted contacts by yanking too hard on the cable when applying the sticky tape.

 

Anyways, looks like I will have to order a new one.

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Success!

 

post-9974-0-91498200-1394849580_thumb.jpg

 

The new display (LS013B4DN04) arrived in the mail today and after wasting a connector on the first board, just to find out that I also burned out a trace, the 2nd attempt did work without smoke and sizzling noises. Good thing Elecrow sent me 11 PCBs :smile:

 

Will coordinate with @@bluehash to get the remaining 9 PCBs (incl. matching FPC connector) into the store.

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Source code (CCS) and schematics (KiCad and PDF) are now published on Github:

https://github.com/astuder/MSP430-sharp-LS013B4DN02-memory-display

 

 

Next up, writing an Energia library. Is there already one for the BoosterPack that comes with the new FRAM LaunchPad?

Thanks!

I haven't seen one.

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I have a demo running on my Wolvepad? That uses a frame(+address+padding) buffer. (14*96 bytes.) And then uses DMA to send it all out with no gaps in the spi clk line.

 

The interface between higher level functions (putc, line, rect) and the buffer it self still needs tidying up though.

 

Any device that has enough ram to support this display should have a DMA. But you could still use #ifdef's to run without it.

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@@greeeg did you use Energia or is it a generic C example?

 

In any case, I definitely look forward to see your code. Adapting it to this booster pack should be trivial (changing around pins for DISP, CS and EXTIN).

 

RAM is going to be an issue with MSP430G2553 though and other smaller MCUs though if one wants to support graphics functionality.. I was already thinking about a REV B that includes a few K of SPI FRAM as dedicated display memory.

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