blob: 9f9f7977f46d4476e3846d8ebab6c7487cddf4f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
function RPI_HardPWMWrite(pin,value)
// Function to change pwm duty on specified pin. Hardware PWM is available
// only on pin 12. So, only '12' should be provided as pin
//
// Calling Sequence
// RPI_HardPWMWrite(12,512) //Value must be smaller than the range set
// using RPI_HARDPWMSetRange
//
// Parameters
// pin: pin no on which pwm value is to be changed. Currently only 12 is allowed
// value: pwm value for given pin. This must be less than range value set
// Description
// This function changes pwm duty on specified pin. As for RPi, only one pin
// (pin 12) is available for hardware PWM.
// PWM frequency = (PWM Clock frequency/Clock divisor/range)
// PWM clock frequency = 19.2 MHz
// clock divisor is setup using RPI_HardPWMSetClock
// range is setup using RPI_HardPWMSetRange
// Actual PWM duty = value/range
// Examples
//
// See also
// RPI_HardPWMSetClock RPI_HardPWMSetRange
//
// Authors
// Siddhesh Wani
// -----------------------------------------------------------------
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for RPi.
endfunction
|