Outputs a pulser and (one day will) measures pulses. More...

#include <libopencm3/cm3/cortex.h>
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/stm32/adc.h>
#include <libopencm3/stm32/dac.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/timer.h>
#include <libopencm3/stm32/usart.h>
#include "arm/stm_timers.h"
#include "arm/stm_usart.h"
#include "asc_exception.h"
#include "asc_helpers.h"
#include "ascii_serial_com.h"
#include "ascii_serial_com_device.h"
#include "ascii_serial_com_register_pointers.h"
#include "circular_buffer.h"
#include "millisec_timer.h"

Include dependency graph for stm32f091nucleo64_pulser.c:

Go to the source code of this file.

Macros
#define	ASC_USART_NO 2

#define	ASC_USART USART2

#define	PORT_LED GPIOA

#define	PIN_LED GPIO5

#define	RCC_GPIO_LED RCC_GPIOA

#define	TIM_LED TIM2

#define	TIM_OC_LED TIM_OC1

#define	RCC_TIM_LED RCC_TIM2

#define	AF_TIM_LED GPIO_AF2

#define	pulser_tick_freq 1000

#define	pulser_period 1000

#define	pulser_width 500

#define	IC_PORT GPIOA

#define	IC_PIN GPIO8

#define	IC_RCC_GPIO RCC_GPIOA

#define	IC_TIM TIM1

#define	IC_RCC_TIM RCC_TIM1

#define	IC_TI TIM_IC_IN_TI1

#define	IC_AF GPIO_AF2

#define	nRegs 10

Functions
	DECLARE_ASC_DEVICE_W_REGISTER_POINTERS () uint8_t tmp_byte=0

int	main (void)

Variables
uint32_t	ic_pulse_length

uint32_t	ic_period

uint32_t	ic_overrun

CEXCEPTION_T	e

uint16_t	nExceptions

	MILLISEC_TIMER_SYSTICK_IT

uint32_t	optionFlags = 0

volatile REGTYPE *	register_map [nRegs]
	Register Map.

REGTYPE	register_write_masks [nRegs]
	Write masks for register_map.

Detailed Description

Outputs a pulser and (one day will) measures pulses.

Outputs configurable pulses on the LED pin, PA5, which is "D13" on the Arduino connector

Reads input pulses on PA8, which is "D7" on the Arduino connector

Register map is documented at register_map

Definition in file stm32f091nucleo64_pulser.c.

Macro Definition Documentation

◆ AF_TIM_LED

#define AF_TIM_LED GPIO_AF2

Definition at line 43 of file stm32f091nucleo64_pulser.c.

◆ ASC_USART

#define ASC_USART USART2

Definition at line 35 of file stm32f091nucleo64_pulser.c.

◆ ASC_USART_NO

#define ASC_USART_NO 2

Definition at line 34 of file stm32f091nucleo64_pulser.c.

◆ IC_AF

#define IC_AF GPIO_AF2

Definition at line 57 of file stm32f091nucleo64_pulser.c.

◆ IC_PIN

#define IC_PIN GPIO8

Definition at line 52 of file stm32f091nucleo64_pulser.c.

◆ IC_PORT

#define IC_PORT GPIOA

Definition at line 51 of file stm32f091nucleo64_pulser.c.

◆ IC_RCC_GPIO

#define IC_RCC_GPIO RCC_GPIOA

Definition at line 53 of file stm32f091nucleo64_pulser.c.

◆ IC_RCC_TIM

#define IC_RCC_TIM RCC_TIM1

Definition at line 55 of file stm32f091nucleo64_pulser.c.

◆ IC_TI

#define IC_TI TIM_IC_IN_TI1

Definition at line 56 of file stm32f091nucleo64_pulser.c.

◆ IC_TIM

#define IC_TIM TIM1

Definition at line 54 of file stm32f091nucleo64_pulser.c.

◆ nRegs

#define nRegs 10

Definition at line 73 of file stm32f091nucleo64_pulser.c.

◆ PIN_LED

#define PIN_LED GPIO5

Definition at line 38 of file stm32f091nucleo64_pulser.c.

◆ PORT_LED

#define PORT_LED GPIOA

Definition at line 37 of file stm32f091nucleo64_pulser.c.

◆ pulser_period

#define pulser_period 1000

Definition at line 47 of file stm32f091nucleo64_pulser.c.

◆ pulser_tick_freq

#define pulser_tick_freq 1000

Definition at line 46 of file stm32f091nucleo64_pulser.c.

◆ pulser_width

#define pulser_width 500

Definition at line 48 of file stm32f091nucleo64_pulser.c.

◆ RCC_GPIO_LED

#define RCC_GPIO_LED RCC_GPIOA

Definition at line 39 of file stm32f091nucleo64_pulser.c.

◆ RCC_TIM_LED

#define RCC_TIM_LED RCC_TIM2

Definition at line 42 of file stm32f091nucleo64_pulser.c.

◆ TIM_LED

#define TIM_LED TIM2

Definition at line 40 of file stm32f091nucleo64_pulser.c.

◆ TIM_OC_LED

#define TIM_OC_LED TIM_OC1

Definition at line 41 of file stm32f091nucleo64_pulser.c.

Function Documentation

◆ DECLARE_ASC_DEVICE_W_REGISTER_POINTERS()

DECLARE_ASC_DEVICE_W_REGISTER_POINTERS ( )

pure virtual

Definition at line 155 of file stm32f091nucleo64_adc_streaming.c.

◆ main()

int main ( void )

Definition at line 131 of file stm32f091nucleo64_pulser.c.

Variable Documentation

◆ e

CEXCEPTION_T e

Definition at line 64 of file stm32f091nucleo64_pulser.c.

◆ ic_overrun

uint32_t ic_overrun

Definition at line 60 of file stm32f091nucleo64_pulser.c.

◆ ic_period

uint32_t ic_period

Definition at line 59 of file stm32f091nucleo64_pulser.c.

◆ ic_pulse_length

uint32_t ic_pulse_length

Definition at line 58 of file stm32f091nucleo64_pulser.c.

◆ MILLISEC_TIMER_SYSTICK_IT

MILLISEC_TIMER_SYSTICK_IT

Definition at line 67 of file stm32f091nucleo64_pulser.c.

◆ nExceptions

uint16_t nExceptions

Definition at line 65 of file stm32f091nucleo64_pulser.c.

◆ optionFlags

uint32_t optionFlags = 0

Definition at line 71 of file stm32f091nucleo64_pulser.c.

◆ register_map

volatile REGTYPE* register_map[nRegs]

Initial value:

= {
    &GPIOA_IDR,          
    &GPIOA_ODR,          
    &optionFlags,        
    &MILLISEC_TIMER_NOW, 
    &TIM_PSC(TIM_LED),   
    &TIM_ARR(TIM_LED),   
    &TIM_CCR1(TIM_LED),  
    &ic_period,          
    &ic_pulse_length,    
    &ic_overrun,         
}

Register Map.

Register Map

Register Number	Description	r/w
0	PORTA input data register, bit 5 is LED	r
1	PORTA output data register, bit 5 is LED	r, bit 5 is w
2	optionFlags: see below	r/w
3	Current millisecond_timer value	r
4	LED pulser prescaler	r/w 16 bits
5	LED pulser period	r/w 16 bits
6	LED pulser pulse length	r/w 16 bits
7	Input capture pulse period	r
8	Input capture pulse width	r
9	Input capture overrun flags (bit 0 for period and 4 for width)	r

See also: register_write_masks

Definition at line 95 of file stm32f091nucleo64_pulser.c.

◆ register_write_masks

REGTYPE register_write_masks[nRegs]