PSoC 16-Bit PWM generation C Language | Cypress Semiconductor
PSoC 16-Bit PWM generation C Language
Hi all , i am working with PSoC 5LP. I have continious changable Analog Signals. I convert it to Digital with help of ADC. From this Result i want to generate PWM (Output1 Forwards, Output2 Ruckwards). All in 16-Bits. So i have range upto 65536.
I have Analog Input 0,1 to 3,3v. So if i gave Input 1,6v than i have 50% Duty Cycle of generated PWM.
PWM Basic Configuration:
PWM Mode: Two Outputs
CMP Value1: 32767 CMP Value2: 32676
CMP Type 1: Less CMP Type 2: Greater
Dead Band: Disable
Clock with 12MHz freq.
Here is the code. In ADC_Result i have 12-bit ADC result. From this result i want to generate 2 PWM Outputs. I know that i have to use WritePeriod(), WriteCompare(), WriteDeadtime() APIs.
int pwmValue, pulseWidth;
// Start the components
// CyGlobalIntEnable; // Uncomment this line to enable global interrupts.
// Start Clock & PWM
pwmValue = ADC_Result // Which equation i have to use.
I read the PWM datasheet & also check the Example PWM Programms but still i am much confsed for this following questions.
1. Need i Dead Band?
2. Which equation for converting ADC result into PWM?
3. Need i Interrupt/Global Interrupt ?