Also verify that there is ~9V present on pin 11 after you power-up the interface in step 11 and 5V on the power supply pin 5. If you have an oscilloscope, check whether the oscillator is running
Also verify that there is ~9V present on pin 11 after you power-up the interface in step 11 and 5V on the power supply pin 5. If you have an oscilloscope, check whether the oscillator is running
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