Paul Boddie wrote:
> they
> tend to have more RAM than the average ARM microcontroller
Hmm, let's see. Package QFN or VTLA (that seems to be QFN that goes
all the way to the corners, clever), 28-36 pins, in stock at
Digi-Key, unit price per 100 units, ...
USB Flash RAM Part name Package Cost
- 128 kB 32 kB PIC32MX150F128B 28-QFN (6x6) 2.74
PIC32MX150F128C 36-VTLA (5x5) 2.80
256 kB 32 kB MKL17Z256VFM4 32-QFN (5x5) 2.36
64 kB PIC32MX170F256B 28-QFN (6x6) 2.98
device 256 kB 32 kB MKL27Z256VFM4 32-QFN (5x5) 2.63
OTG 128 kB 16 kB MKL26Z128VFM4 32-QFN (5x5) 2.14
32 kB PIC32MX250F128B 28-QFN (6x6) 3.06
PIC32MX250F128C 36-VTLA (5x5) 3.33
256 kB 64 kB PIC32MX270F256B 28-QFN (6x6) 3.22
So PIC32 win in this segment by having twice as much RAM as the
Kinetis L series if you need > 32 kB of RAM (an no USB), or even
four times if you need > 16 kB of RAM and USB OTG (and not just USB
device).
Where a Kinetis L with the same amount of RAM and roughly the same
number of pins exists, the PIC32 have less Flash and are more
expensive.
> Another Crowd Supply campaign that was also pointed out is this one:
>
> https://www.crowdsupply.com/soniktech/zamek
>
> That one seems to want to play in the Anelok space. ;-)
Ah, they're getting closer ! Still self-flagellating with AVR, but
this one now has a battery. No RF, though. Crypto seems to be a bit
wobbly.
The little "joystick" is cute, but I wonder how convenient it is.
I played with that critter and found it less convenient than
buttons. With the joystick, Zamek has five switches (X+, X-, Y+, Y-,
push) instead of the three of Anelok (up, middle, down), though.
Pity nobody took up the slider challenge.
- Werner
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