AST6

This example creates look-up tables in the ROM using the Data ROMWindow. There are four 64-byte data tables, that are cascaded in order to provide a 256 byte non-linear correction table. For clarity, the table is applied to a linear 8-bit value, obtained from the ST6 on-chip analog-to-digital (a/d) converter. The example can easily be adapted for a wide range of applications, such as temperature sensing and control, frequency sensitivity correction, pattern generation and binary to bcd conversion.

To implement a 256-byte correction table, the two MSBs of the a/d result are used to reference one of the four 64-byte data tables. The remaining 6 LSBs of the result specify the offset from the beginning of the appropriate table.