Re: Interest in AVR+MSP430 "general purpose" proto board?
- From: larwe <zwsdotcom@xxxxxxxxx>
- Date: 17 Apr 2007 06:39:06 -0700
In response to feedback, I'm making the following changes to the
board:
- Dimensions to change to approx 3.75 x 5.00". Size is designed to fit
Hammond Manufacturing p/n 1591ESBK polystyrene box (Digi-Key p/n HM106-
ND) with a small free space for batteries
- Add footprint for MCP9800A0 or MCP9800A5 -55 to +125C temperature
sensor on I2C bus
- Add footprint for ST M41T0 real-time clock IC on I2C bus. Separate
pads for attaching an external backup battery
- SD socket moved to overhang edge of board by ~80 mil in order to
protrude through edge of 1591ESBK box if desired.
- Remove DIP footprint for MSP430F20xx parts
- Add footprint for Cygnal C8051F410-GQ 32K flash fast low-power 8051
with 12-bit ADC, and associated debug connector
- Add pads for 0 ohm resistor to strap Vin+ to Vcc so the unit can be
run directly off a battery or externally regulated supply
- Add TPS60212 3.3V switcher to run the unit off one 1.5V cell if
desired (note: constraints apply)
- Wire accelerometer selftest line to AVR block
- Correct note in AVR block: ATmega32 is not supported
I expect I will have these in hand by May 14th or so.
.
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