Programming the TMS320VC5509 ADC Peripheral
This application note demonstrates the procedure used to program the TMS320VC5509 ADC peripheral. Basic operation of the ADC consists of the ADC initialization and conversion of an arbitrary voltage into a digital value. This operation is illustrated using the ADC module provided in the chip support library (see TMS320C55x Chip Support Library API Reference Guide (SPRU433A)).
Section 3 provides an example that allows you to determine which key was pressed on a keypad. Pressing a key generates DC voltage, and the ADC converts the DC voltage into its digital representation.
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