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Jim Granville
11/26/15 19:28
Read: 564 times


 
#190584 - Very good DAC's
Responding to: Jan Waclawek'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
ALIGN 4
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
TopicAuthorDate
SiLabs: EFM8 LaserBee      Jan Waclawek      11/25/15 14:33      
   Very good DAC's      Jim Granville      11/26/15 19:28      
   Errata      Oliver Sedlacek      11/27/15 04:37      
   Re: Laser Bee      Valentin Angelovski      11/29/15 06:39      
      oh I forgot..      Valentin Angelovski      11/29/15 19:22      
      CLU      Jan Waclawek      11/30/15 03:44      
   don't forget      Erik Malund      11/30/15 07:10      
   and, if you can be CLUless      Erik Malund      11/30/15 13:48      
      $0.20?      Jan Waclawek      11/30/15 14:31      
         must have been an "introductory price'      Erik Malund      12/01/15 06:40      
            Press release prices      Jim Granville      12/01/15 16:19      

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