Posted on February 15, 2014 at 18:28Is this a commercial design?
If it is I would totally avoid R-C based reset circuits, and recommend a proper Power-On-Reset (POR) design using something like a Microchip MCP120 thresholding your highest supply voltage, and guaranteeing a minimum RESET pulse width >100ms. Such a circuit would need just a pull-up. The cap is there for a delay either in supply rise, or button depression. I think a larger cap would be more desirable. The Olimex design has a POR chip at U2, with a button to ground NRST.
What you do with BOOT0 will also depend on your factory programming strategy, I'd probably just opt for a 33K or 47K pull down to ground, with a test point, jumper or header connection option to drive it high. Also plan on breaking out a USART1/3 to a header to permit a low cost programming interface.
If you plan on doing any development on the board, place a STANDARD debug header arrangement, either a fine pitched 10-pin SWD header, or course pitch 20-pin JTAG header, don't use 5 or 6-pin hacks like the DISCOVERY board unless you've got a lot of experience and have some specific device programming knowledge. Place headers or pads in a manner that permits easy mounting and fixturing. Placing the pads on the rear of the board, or using thru-hole arrangement might also be considered. Header connectors can be dropped from the final BOM.
