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Clock working, I2C communication to be proven

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This commit is contained in:
StefansE
2026-03-26 19:26:58 +01:00
parent 6b3f588fb0
commit ba8855eb21
6 changed files with 153 additions and 21 deletions
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18
Core/Inc/clock.h Normal file
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@@ -0,0 +1,18 @@
/*
* clock.h
*
* Created on: Mar 26, 2026
* Author: ewars
*/
#ifndef INC_CLOCK_H_
#define INC_CLOCK_H_
#include <stdint-gcc.h>
uint8_t clock_convert_hours(uint8_t hours);
uint8_t clock_convert_min_sec(uint8_t min_sec);
#endif /* INC_CLOCK_H_ */

6
Core/Inc/ws2812_effect.h
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@@ -8,11 +8,17 @@
#ifndef INC_WS2812_EFFECT_H_
#define INC_WS2812_EFFECT_H_
#include "stdint-gcc.h"
void ws_Effect_RoudTheClock(void);
void ws_Effect_RandRound(void);
void ws_Effect_RandRand(void);
void ws_effect_display_time(uint8_t hour, uint8_t minute, uint8_t second);
void ws_effect_display_hour(uint8_t hour);
#endif /* INC_WS2812_EFFECT_H_ */

55
Core/Src/clock.c Normal file
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@@ -0,0 +1,55 @@
/*
* clock.c
*
* Created on: Mar 26, 2026
* Author: ewars
*/
#include "clock.h"
// define LED marking 12:00 or 00:00
#define LED_ZERO_OFFSET 10
uint8_t clock_convert_hours(uint8_t hours){
int8_t h = 0;
uint8_t led = 0;
// input check
if(hours < 24){
if(hours > 12){
h = hours - 12;
}
else{
h = hours;
}
led = 2 * h + LED_ZERO_OFFSET;
if(led > 23){
led -= 24;
}
}
return led;
}
uint8_t clock_convert_min_sec(uint8_t min_sec){
float led = 0;
if(min_sec < 60){
led = (float) min_sec/(60/24);
led += LED_ZERO_OFFSET;
if(led > 23){
led -= 24;
}
}
return (uint8_t) led;
}

35
Core/Src/ds1307.c
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@@ -65,11 +65,17 @@ static ds1307_err_t ds1307_write_byte(uint8_t ds1307_reg_addres, uint8_t data){
*/
static uint8_t ds1307_read_byte(uint8_t ds1307_reg_addres){
HAL_StatusTypeDef status = HAL_ERROR;
uint8_t data;
HAL_I2C_Master_Transmit(&DS1307_HANDLER, DS1307_ADDRES << 1, &ds1307_reg_addres, 1, DS1307_TIMEOUT);
HAL_I2C_Master_Receive(&DS1307_HANDLER, DS1307_ADDRES << 1, &data, 1, DS1307_TIMEOUT);
status = HAL_I2C_Master_Transmit(&DS1307_HANDLER, DS1307_ADDRES << 1, &ds1307_reg_addres, 1, DS1307_TIMEOUT);
status = HAL_I2C_Master_Receive(&DS1307_HANDLER, DS1307_ADDRES << 1, &data, 1, DS1307_TIMEOUT);
if(HAL_OK == status){
return data;
}
else{
return 255;
}
}
/**
* @brief BCD decode
*
@@ -113,7 +119,10 @@ void ds1307_set_clock_halt(uint8_t halt){
* @return uint8_t
*/
uint8_t ds1307_get_clock_halt(void){
return (ds1307_read_byte(DS1307_SECONDS) & 0x80) >> 7;
uint8_t read = ds1307_read_byte(DS1307_SECONDS);
if(read != 255){
return (read & 0x80) >> 7;
}
}
/**
@@ -150,7 +159,13 @@ void ds1307_set_second(uint8_t second){
* @return uint8_t
*/
uint8_t ds1307_get_second(void){
return ds1307_bcd_decode(ds1307_read_byte(DS1307_SECONDS) & 0x7F);
uint8_t decode = ds1307_read_byte(DS1307_SECONDS);
if(decode != 255){
return ds1307_bcd_decode(decode & 0x7F);
}
else{
return 255;
}
}
/**
* @brief ds1307_set_minutes
@@ -273,9 +288,17 @@ int8_t ds1307_get_time_zone_min(void){
* @param dev: ds1307 pointer
*/
void ds1307_update(ds1307_dev_t *ds1307_dev){
uint8_t val = 0;
ds1307_dev->seconds = ds1307_get_second();
ds1307_dev->minutes = ds1307_get_minutes();
val = ds1307_get_second();
if(val != 255){
ds1307_dev->seconds = val;
}
val = ds1307_get_minutes();
if(val != 255){
ds1307_dev->minutes = val;
}
ds1307_dev->hours = ds1307_get_hour();
ds1307_dev->day = ds1307_get_day();
ds1307_dev->date = ds1307_get_date();

27
Core/Src/main.c
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@@ -29,6 +29,7 @@
#include "ws2812_drv.h"
#include "ws2812_effect.h"
#include "ds1307.h"
#include "clock.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
@@ -108,7 +109,7 @@ int main(void)
// RTC config
ds1307_init();
ds1307_dev_t my_rtc;
ds1307_config(0, 44, 12, SATURDAY, 18, SEPTEMBER, 2021, +8, 00);
ds1307_config(0, 10, 19, THURSDAY, 26, MARCH, 2026, +1, 33);
/* USER CODE END 2 */
@@ -126,28 +127,26 @@ int main(void)
#define EFFECT_TIME 10000
// ds1307_update(&my_rtc);
ds1307_update(&my_rtc);
mytimer = HAL_GetTick();
while(mytimer + EFFECT_TIME > HAL_GetTick()){
ws_Effect_RoudTheClock();
}
uint8_t hour = my_rtc.hours;
uint8_t minutes = my_rtc.minutes;
uint8_t seconds = my_rtc.seconds;
hour = clock_convert_hours(my_rtc.hours);
minutes = clock_convert_min_sec(my_rtc.minutes);
seconds = clock_convert_min_sec(my_rtc.seconds);
mytimer = HAL_GetTick();
while(mytimer + EFFECT_TIME > HAL_GetTick()){
ws_Effect_RandRound();
}
ws_effect_display_time(hour, (uint8_t) minutes, (uint8_t) seconds);
// ws_Effect_RoudTheClock();
mytimer = HAL_GetTick();
while(mytimer + EFFECT_TIME > HAL_GetTick()){
ws_Effect_RandRand();
}
HAL_GPIO_TogglePin(LED_Green_GPIO_Port, LED_Green_Pin);
HAL_Delay(1000);
}
/* USER CODE END 3 */
}

31
Core/Src/ws2812_effect.c
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@@ -10,6 +10,17 @@
#include "ws2812_drv.h"
#include <stdlib.h>
typedef struct {
uint8_t r;
uint8_t g;
uint8_t b;
} colour_s;
static colour_s colour_hours = {250, 0, 0};
static colour_s colour_minutes = {0, 250, 0};
static colour_s colour_seconds = {0, 0, 250};
void ws_Effect_RoudTheClock(void){
#define RAND_MAX 25
@@ -46,6 +57,26 @@ void ws_Effect_RandRound(void){
}
}
void ws_effect_display_time(uint8_t hour, uint8_t minute, uint8_t second){
ws2812_reset();
ws2812_set_colour(hour, colour_hours.r, colour_hours.g, colour_hours.b);
ws2812_update();
ws2812_set_colour(minute, colour_minutes.r, colour_minutes.g, colour_minutes.b);
ws2812_update();
ws2812_set_colour(second, colour_seconds.r, colour_seconds.g, colour_seconds.b);
ws2812_update();
}
void ws_effect_display_hour(uint8_t hour){
ws2812_reset();
ws2812_set_colour(hour, colour_hours.r, colour_hours.g, colour_hours.b);
}
void ws_Effect_RandRand(void){