| 摘要 |
<p>PURPOSE:To reduce software development period by defining a program reading out an external non-volatile memory and defining a nurarical data stored in an internal ROM to the external non-volatile memory. CONSTITUTION:By defining the program reading out the external non-volatile memory in a microcomputer, the numerical data stored in the microcomputer are defined to the external non-volatile memory. That is, by utilizing the A/D converter input of the microcomputer, external voltage Vin is read (step 1) and comparison data VREF between it and the data read out of the external non-volatile memory (step 2). Then the Vin is compared with the VREF (Step 3), and the transfer to a processing of Vin>VREF(or Vin<=VREF) is conducted (step 4) or to a processing of Vin<=VREF (or Vin<VREF) is performed (step 5).</p> |
