BBD-MN3010 and MN3011- is a MN3101 clock necessary?
Theo
t.hogers at home.nl
Sun May 7 04:18:00 CEST 2000
>Maybe use something bigger than the 8-pin varieties.
>
The 28 pin AT90S2333 or 4433 look nice for this kind of application.
(8MHz costs around $7 has 20 I/O pins and onboard 6 channel DAC)
>Then you have enough
>pins to use external clocks for the uC. I'd run the clock out of a high
>speed VCO or PLL, so that I wouldn't have to use devices with ADCs. The
>fact that the gap changes with clocking rate doesn't matter if one uses the
>1/4 clock delayed S/H. The program would be a stupid small endless loop.
>
Yes sure, but part of the fun is to let the uC do more, like LFO or ENV.
The analog inputs let you CV the uC.
Also using the optimum dead time may improve S/N ratio.
The S/H trick should keep the clock noise out, the dead time may affect
leaking
and switching effects inside the divice.
>Oh, and a silly question: Can the ATtiny chips be programmed with a STK-200
?
>
Yes you can program all AVR's (Tiny, S, Mega) with STK200, STK300 or Micro
ISP module.
Don't use the board to program.
Just include a ISP conector on your PCB and use the cable that came with the
STK to hook it up to your computer.
The ISP connection does not eat I/O pins, see the STK manual for a "how to"
example.
Hope this helps,
Theo
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