Re: A new smartsocket command - delayed digits
> --- In email@example.com, "John" <jpt@> wrote:The only pin that is REALLY load sensitive is the ICSPDAT pin as it is bi-directional data. The clock is input only and usually driven pretty hard so is typically more tolerant to loading. I have found that using the ICSP pins to drive a small signal FET gate or high impedance (33K) BJT will usually allow them to have their function doubled up without a problem... and it really comes in handy if you forget to program the part before soldering it in.
> > You can in-circuit-program these when the PIC is soldered in...
> > http://www.tayloredge.com/reference/Circuits/1386SmartSocket/B7971ICSP.pdf
> > The 33K base resistors were used for two reasons:
> > 1. Lower 5V current draw
> > 2. Less load on the ICSP-DAT line allowing in circuit programming.
> > jt
> That is a great idea there, John.
> I am toying with the new IV-17 Smartsocket and want to take the surface mount component route. That means ICSP should also be allowed for.