#include "pwm.h"
Include dependency graph for pwm.c:
Go to the source code of this file.
Functions | |
| int | pwm_setup (void) |
| void | pwm_close (void) |
| void | range_clock_setup (int sample_rate) |
| void | adc_clock_setup (void) |
Variables | |
| int | mem_fd |
| Physical memory file descriptor. More... | |
| volatile uint16_t * | pwmss0_regs |
| Pointer to PWMSS0 (PWM-Sub-System) registers. More... | |
| volatile uint16_t * | pwmss1_regs |
| Pointer to PWMSS1 (PWM-Sub-System) registers. More... | |
Function Documentation
| void adc_clock_setup | ( | void | ) |
Setup PWMSS0 for ADC master clock
Definition at line 84 of file pwm.c.
References ADC_AQ, ADC_CLOCK_PERIOD, AQCTLA, CMPA, pwmss0_regs, TBCTL, TBCTL_DEFAULT, and TBPRD.
Referenced by hw_init().
| void pwm_close | ( | void | ) |
Unmap PWM registers from user space
Definition at line 48 of file pwm.c.
References mem_fd, PWM_SIZE, pwmss0_regs, and pwmss1_regs.
Referenced by hw_close().
| int pwm_setup | ( | void | ) |
Map PWM registers into user space (on pwmss0_regs and pwmss1_regs pointer)
Definition at line 18 of file pwm.c.
References ERROR, FAILURE, mem_fd, PWM_SIZE, PWMSS0_BASE, pwmss0_regs, PWMSS1_BASE, pwmss1_regs, rl_log(), and SUCCESS.
Referenced by hw_init().
Here is the call graph for this function:
| void range_clock_setup | ( | int | sample_rate | ) |
Setup PWMSS1 for range latch reset clock
- Parameters
-
sample_rate ADC sampling rate in Sps
Definition at line 64 of file pwm.c.
References AQCTLA, AQCTLB, CMPA, CMPB, PRESCALE2, PULSE_WIDTH, PWM_PERIOD_SCALE, pwmss1_regs, RWC_AQ_A, RWC_AQ_B, TBCTL, TBCTL_DEFAULT, TBPRD, and UP_DOWN_COUNT.
Referenced by hw_init().
Variable Documentation
| int mem_fd |
Physical memory file descriptor.
Copyright (c) 2016-2017, ETH Zurich, Computer Engineering Group
Definition at line 8 of file pwm.c.
Referenced by pwm_close(), and pwm_setup().
| volatile uint16_t* pwmss0_regs |
Pointer to PWMSS0 (PWM-Sub-System) registers.
Definition at line 10 of file pwm.c.
Referenced by adc_clock_setup(), pwm_close(), and pwm_setup().
| volatile uint16_t* pwmss1_regs |
Pointer to PWMSS1 (PWM-Sub-System) registers.
Definition at line 12 of file pwm.c.
Referenced by pwm_close(), pwm_setup(), and range_clock_setup().
