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11/27/15 02:28
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#190584 - Very good DAC's
Responding to: ???'s previous message

The DACs work very well, and it is the cheapest MCU at Digikey with >=10b DAC.
Tests indicate you can INC(DACH) at 36MHz for controlled ramps.

Jan Waclawek said:

72MHz, no jump cache.

There is a small cache, that complicates timing above 25Mhz, but tests indicate if you use
then opcodes like DJNZ Rn,$ and JNB Bit,$ can execute in the cache at full speed.

Jan Waclawek said:

Fair mix of peripherals. 3V-only (with some 5V tolerance), as is usual with SiLabs.

OTOH, prices start at a very pleasant sub-$, top $2.

Yes, good prices and like the EFM8UB1, this has small FIFOs on the i2c Slave & SPI & UARTS.

The i2c Slave is an Async block, so you can vary the Oscillator and communicate fine.

Looks ideally suited as a slave to Raspberry Pi's

Jan Waclawek said:

... and the very first item in errata is, ehm, disturbing...

Yes, but they are fixing that.

However, missing is the ability to hit full core speed with a Crystal.
100MHz timers would have been nice too...

List of 11 messages in thread
SiLabs: EFM8 LaserBee            01/01/70 00:00      
   Very good DAC's            01/01/70 00:00      
   Errata            01/01/70 00:00      
   Re: Laser Bee            01/01/70 00:00      
      oh I forgot..            01/01/70 00:00      
      CLU            01/01/70 00:00      
   don't forget            01/01/70 00:00      
   and, if you can be CLUless            01/01/70 00:00      
      $0.20?            01/01/70 00:00      
         must have been an "introductory price'            01/01/70 00:00      
            Press release prices            01/01/70 00:00      

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