Peripheral Simulation
For Texas Instruments LM3S5739 — Analog/Digtal Converter (ADC)
Simulation support for this peripheral or feature is comprised of:
- Dialog boxes which display and allow you to change peripheral configuration.
- VTREGs (Virtual Target Registers) which support I/O with the peripheral.
These simulation capabilities are described below.
Analog/Digital Converter Dialog
ADCx Input Voltage VTREG
Data Type: float
The ADCx VTREGs set the analog input voltages for simulated A/D
converters. The ADCx VTREGs represent the inputs to the analog input
pins of the MCU for analog input 0, 1, 2, and so on. ADC0 sets the
input voltage for analog input #0, ADC1 sets the input voltage for
analog input #1, etc. If you have properly configured the analog
inputs, the following commands (typed in the debugger's Command
Window) input the voltages specified.
ADC0 = 0.000 /* Analog Input 0 = 0.000 volts */
ADC1 = 2.500 /* Analog Input 1 = 2.500 volts */
ADC2 = 4.999 /* Analog Input 2 = 4.999 volts */
You may create a debugger signal function to periodically change
the value of the A/D input. The following signal function increases
the A/D Channel 1 input voltage by 0.1 volts each second.
signal void ADC1_sig (void) {
float f;
for (f = 0.0; f < 5.0; f += 0.1)
{
swatch (1.0); // Delay 1 second
ADC1 = f; // Set ADC1 Voltage
}
}