I am having trouble programming a PBASIC2/P.
First, the documents I have found show the pinouts for this chip, a 16F57-I/P, 28-pin std DIP, to be the same as the SX28DP/AC which is a 28-pin skinny DIP.
Second, I have been able to program the skinny DIP, 50 MHz, but not the standard-size DIP, 20 MHz. Clock signal comes from a CTS MXO45HS oscillator module of the correct frequency.
Third, clicking the IDENTIFY button in editor reports: BASIC Stamp 2 V1.0; Loopback=yes; Echp=yes
F9 yields: Download Error BASIC Stamp 2sx not found...
Does anyone have an idea what may be going on?