In SX Microcontrollers, SX/B Compiler and SX-Key Tool, originator99 wrote:

No luck with the 4's either.

Circuit is only the resonator across osc pins with center to GND.

Steps:

1. Program SX with Blitz  using OSCHS1, 2, OSCXT1, 2 and both 50m and 4mhz res, with respective FREQ set for each
2. Remove Blitz and insert resonator after programming
3. Reset power


The program doesn't run with the Blitz plugged in using external osc modes (with no resonator in place)

I have tried 2 SX chips on two different breadboards that run fine in internal, resonator is close as possible

The chip programs so the pins must be connected on the breadboards.

5vdc    on osc2
1.5vdc on osc1

No obvious clock on either pin in ac or dc modes

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