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:
16-Bit UDB
PWM Mode: Two Outputs
Period: 65535
CMP Value1: 32767 CMP Value2: 32676
CMP Type 1: Less CMP Type 2: Greater
Dead Band: Disable
Interrupt: None
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.

int32 ADC_Result;
uint16 i=0;
int pwmValue, pulseWidth;
int main()
{  
  // Start the components 
 Sys_Init(); 
  
// CyGlobalIntEnable;  // Uncomment this line to enable global interrupts.
   // Start Clock & PWM
 Clock_Start();
 PWM_Start(); 
  while(1)
  { 
   
 pwmValue = ADC_Result  // Which equation i have to use.
 PWM_WritePeriod(pwmValue);
 PWM_WriteCompare1(); 
 
  }  
}

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 ?

Regards
Max

 

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:
.............
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 ?

Regards
Max

You should ask this at http://www.cypress.com/?app=forum