Implementation of EVAL_POWRMS example for demo project. More...

#include "example.h"
#include "powrms_gpios.h"
#include "powrms_utils.h"
#include "powrms_data_processing.h"
#include "m24512.h"
#include "subscreen_blank_screen.h"
#include "no_os_alloc.h"
#include "no_os_delay.h"
#include "no_os_uart.h"
#include "no_os_print_log.h"
#include "maxim_uart_stdio.h"
#include "max32662.h"

Include dependency graph for example.c:

Macros
#define	SCREEN_UPDATE_PERIOD_MS 200

Functions
void	my_flush_cb (lv_display_t disp, const lv_area_t area, uint8_t *color_p)

int	display_task ()
	Initialize the display task.

int	configure_adc ()
	Configure the ADC.

int	configure_display ()
	Configure the display.

int	configure_debug_uart (void)
	Initialize the debug UART and route stdio (printf / pr_*) to it.

int	screen_while ()
	IIO post-step callback.

int	example_main (void)
	Main function.

Variables
LV_ATTRIBUTE_MEM_ALIGN uint8_t	display_buffer [SSD1306_HOR_REZ *SSD1306_VER_REZ/8+8]

bool	show_menu = 1

bool	enter_pressed = 0

enum display_entry_t	display_entry = DISPLAY_ENTRY_SHOW
	Display descriptor 0 -> Startup Frequency Screen 1 -> Main Screen (ADC values) 2 -> Show Screen 3 -> Settings Screen.

Detailed Description

Implementation of EVAL_POWRMS example for demo project.

Author: Robert Budai (rober.nosp@m.t.bu.nosp@m.dai@a.nosp@m.nalo.nosp@m.g.com)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

◆ SCREEN_UPDATE_PERIOD_MS

#define SCREEN_UPDATE_PERIOD_MS 200

Function Documentation

◆ configure_adc()

int configure_adc ( )

Configure the ADC.

Returns: int

◆ configure_debug_uart()

int configure_debug_uart ( void )

Initialize the debug UART and route stdio (printf / pr_*) to it.

Uses the same UART that the IIO transport runs on (iio_demo_usb_ip) so that pr_info()/pr_debug()/pr_err() messages from the whole firmware appear on the host serial console.

Returns: int - 0 on success, negative error code on failure.

◆ configure_display()

int configure_display ( )

Configure the display.

Returns: int

◆ display_task()

int display_task ( )

Initialize the display task.

Returns: int

◆ example_main()

int example_main ( void )

Main function.

Basic example main execution.

Basic example main executiont.

Returns: int

IIO descriptor and initialization parameter.

IIO app.

Declaring iio_devices structure

Initializing IIO app init param.

Initializing IIO app.

Running the IIO app (use iio_info or osc in terminal).

Set the threshold voltage to 5V

The comparator output will be available on the GPO_A pin

Set the DAC output on channel C to 5V

Measure input current on channel D

GPIO Pin Interrupt Controller

UART init params

IIO application descriptor

IIO application initialization parameters

iio axi adc configurations.

iio axi dac configurations.

iio instance descriptor.

iio device instance descriptor.

UART init params

IIO application descriptor

IIO application initialization parameters

iio axi adc configurations.

iio axi dac configurations.

iio instance descriptor.

iio device instance descriptor.

Negative temperature

Positive temperature

Negative temperature

Positive temperature

Switch to APG mode

Switch to AWG mode

◆ my_flush_cb()

void my_flush_cb	(	lv_display_t *	disp,
		const lv_area_t *	area,
		uint8_t *	color_p )

◆ screen_while()

int screen_while ( )

IIO post-step callback.

Runs after every iio_step(). The heavy screen/ADC work is rate-limited to SCREEN_UPDATE_PERIOD_MS so it does not block the IIO transport on every poll. LVGL's tick is advanced with the real elapsed time rather than a fixed value.

Returns: int - always 0; a screen-side error must never tear down the IIO app.

Variable Documentation

◆ display_buffer

LV_ATTRIBUTE_MEM_ALIGN uint8_t display_buffer[SSD1306_HOR_REZ * SSD1306_VER_REZ/8+8]

◆ display_entry

enum display_entry_t display_entry = DISPLAY_ENTRY_SHOW

Display descriptor 0 -> Startup Frequency Screen 1 -> Main Screen (ADC values) 2 -> Show Screen 3 -> Settings Screen.

◆ enter_pressed

bool enter_pressed = 0

◆ show_menu

bool show_menu = 1

Macros

Functions

Variables