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Pixel by pixel scrolling

This commit is contained in:
Pedro de Oliveira 2017-03-22 00:10:08 +00:00
parent af1ad437ac
commit 3ae85de2d9
3 changed files with 567 additions and 498 deletions
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70
Inc/ssd1306.h
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@ -2,23 +2,11 @@
#include "stm32f4xx_hal.h"
#include "fonts.h"
// Deze library is door Olivier Van den Eede 2016 geschreven en aangepast voor gebruik met
// Stm32 microcontrollers en maakt gebruik van de HAL-i2c library's.
//
// Deze library is gemaakt om gebruik te kunnen maken van een ssd1306 gestuurd oled display.
// Voor het gebruik moeten zeker de onderstaande defines juist ingesteld worden.
// Zoals de gebruikte i2c poort en de groote van het scherm.
//
// De library maakt gebruik van 2 files (fonts.c/h) Hierin staan 3 fonts beschreven.
// Deze fonts kunnen zo gebruikt worden: - Font_7x10
// - Font_11x18
// - Font_16x26
#ifndef ssd1306
#define ssd1306
// i2c port naam in main programma gegenereerd door cube
#define SSD1306_I2C_PORT hi2c1
#define SSD1306_I2C_PORT hi2c1
// I2C address
#define SSD1306_I2C_ADDR 0x78
// SSD1306 width in pixels
@ -26,30 +14,64 @@
// SSD1306 LCD height in pixels
#define SSD1306_HEIGHT 64
#define SSD1306_EXTERNALVCC 0x1
#define SSD1306_SWITCHCAPVCC 0x2
#define SSD1306_SETCONTRAST 0x81
#define SSD1306_DISPLAYALLON_RESUME 0xA4
#define SSD1306_DISPLAYALLON 0xA5
#define SSD1306_NORMALDISPLAY 0xA6
#define SSD1306_INVERTDISPLAY 0xA7
#define SSD1306_DISPLAYOFF 0xAE
#define SSD1306_DISPLAYON 0xAF
#define SSD1306_SETDISPLAYOFFSET 0xD3
#define SSD1306_SETCOMPINS 0xDA
#define SSD1306_SETVCOMDETECT 0xDB
#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
#define SSD1306_SETPRECHARGE 0xD9
#define SSD1306_SETMULTIPLEX 0xA8
#define SSD1306_SETLOWCOLUMN 0x00
#define SSD1306_SETHIGHCOLUMN 0x10
#define SSD1306_SETSTARTLINE 0x40
#define SSD1306_MEMORYMODE 0x20
#define SSD1306_COLUMNADDR 0x21
#define SSD1306_PAGEADDR 0x22
#define SSD1306_COMSCANINC 0xC0
#define SSD1306_COMSCANDEC 0xC8
#define SSD1306_SEGREMAP 0xA0
#define SSD1306_CHARGEPUMP 0x8D
// Scrolling #defines
#define SSD1306_ACTIVATE_SCROLL 0x2F
#define SSD1306_DEACTIVATE_SCROLL 0x2E
#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3
#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26
#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27
#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29
#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A
//
// Enum voor de kleuren van het scherm Black en White
// Enum voor de kleuren van het scherm Black en White
//
typedef enum {
Black = 0x00, /*!< Black color, no pixel */
White = 0x01 /*!< Pixel is set. Color depends on LCD */
Black = 0x00, /*!< Black color, no pixel */
White = 0x01 /*!< Pixel is set. Color depends on LCD */
} SSD1306_COLOR;
//
// Struct om wijzigingen bij te houden
// Struct om wijzigingen bij te houden
//
typedef struct {
uint16_t CurrentX;
uint16_t CurrentY;
uint8_t Inverted;
uint8_t Initialized;
uint16_t CurrentX;
uint16_t CurrentY;
uint8_t Inverted;
uint8_t Initialized;
} SSD1306_t;
// De i2c poort staat in de main
// De i2c poort staat in de main
extern I2C_HandleTypeDef SSD1306_I2C_PORT;
//
// De functies definities van de functies die gebruikt kunnen worden
// De functies definities van de functies die gebruikt kunnen worden
//
uint8_t ssd1306_Init(void);
void ssd1306_Fill(SSD1306_COLOR color);
@ -60,5 +82,7 @@ char ssd1306_WriteString(char* str, FontDef Font, SSD1306_COLOR color);
void ssd1306_SetCursor(uint8_t x, uint8_t y);
void ssd1306_WriteCommand(uint8_t command);
void ssd1306_Scroll(void);
void startscrollright(uint8_t start, uint8_t stop);
#endif

650
Src/main.c
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@ -1,319 +1,331 @@
/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2017 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include <string.h>
#include "main.h"
#include "stm32f4xx_hal.h"
/* USER CODE BEGIN Includes */
#include "ssd1306.h"
#include "fonts.h"
//#include "dht22.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
UART_HandleTypeDef huart1;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
char UART1_Data;
char UART_Buffer[32];
char text[32];
unsigned char i = 0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_I2C1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
ssd1306_Init();
//DHT22_Init();
HAL_UART_Receive_IT(&huart1, (uint8_t*) &UART1_Data, 1);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_6); //Toggle the state of pin PC9
//HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_7); //Toggle the state of pin PC9
//DHT22_Read(htim6);
ssd1306_SetCursor(0, 53);
ssd1306_WriteString(text, Font_7x10, White);
ssd1306_UpdateScreen();
for(int i = 0; i < 64; i++) {
ssd1306_WriteCommand(0x40 | i);
ssd1306_UpdateScreen();
HAL_Delay(30);
}
//HAL_Delay(250);
ssd1306_Fill(Black);
ssd1306_UpdateScreen();
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
/**Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 400000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_16_9;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
Error_Handler();
}
}
/* USART1 init function */
static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 9600;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET);
/*Configure GPIO pins : PA6 PA7 */
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
char n = 0;
char UART_Aux[32];
if (huart->Instance == USART1) {
if (UART1_Data != '\n') {
UART_Buffer[i] = UART1_Data;
i++;
} else {
n = sprintf(UART_Aux, "%s\r\n", UART_Buffer);
HAL_UART_Transmit(&huart1, (uint8_t*) &UART_Aux, n, 1000);
// limpa o '\r'
UART_Buffer[i-1] = 0;
snprintf(text, 32, "%s", UART_Buffer);
i = 0;
}
HAL_UART_Receive_IT(&huart1, (uint8_t*) &UART1_Data, 1);
}
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
*
* COPYRIGHT(c) 2017 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include <string.h>
#include <stdlib.h>
#include "main.h"
#include "stm32f4xx_hal.h"
/* USER CODE BEGIN Includes */
#include "ssd1306.h"
#include "fonts.h"
//#include "dht22.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
UART_HandleTypeDef huart1;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
char UART1_Data;
char UART_Buffer[32];
char text[32];
int i;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_USART1_UART_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_I2C1_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
ssd1306_Init();
//DHT22_Init();
HAL_UART_Receive_IT(&huart1, (uint8_t*) &UART1_Data, 1);
/*
for(int y = 0; y < 129; y++) {
ssd1306_DrawPixel(y, 20, White);
}
*/
//ssd1306_UpdateScreen();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
int x, msg;
//HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_6); //Toggle the state of pin PC9
//DHT22_Read(htim6);
//startscrollright(0x00, 0x0F);
for(int times = 0; times < 12; times++) {
ssd1306_Scroll();
ssd1306_UpdateScreen();
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_7); //Toggle the state of pin PC9
}
x = rand() % 60 + 1;
msg = rand() % 2 + 1;
ssd1306_SetCursor(x, 53);
ssd1306_WriteString((msg == 1) ? "GORDOS" : "LOL", Font_7x10, White);
/*
for(int y = 0; y < 129; y++) {
ssd1306_DrawPixel(y, 63, White);
}
*/
ssd1306_UpdateScreen();
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
/**Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 400000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_16_9;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
Error_Handler();
}
}
/* USART1 init function */
static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET);
/*Configure GPIO pins : PA6 PA7 */
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
char n = 0;
char UART_Aux[32];
if (huart->Instance == USART1) {
if (UART1_Data != '\n') {
UART_Buffer[i] = UART1_Data;
i++;
} else {
n = sprintf(UART_Aux, "%s\r\n", UART_Buffer);
HAL_UART_Transmit(&huart1, (uint8_t*) &UART_Aux, n, 1000);
// limpa o '\r'
UART_Buffer[i-1] = 0;
snprintf(text, 32, "%s", UART_Buffer);
i = 0;
}
HAL_UART_Receive_IT(&huart1, (uint8_t*) &UART1_Data, 1);
}
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

345
Src/ssd1306.c
View File

@ -1,213 +1,246 @@
#include"ssd1306.h"
// Databuffer voor het scherm
static uint8_t SSD1306_Buffer[SSD1306_WIDTH * SSD1306_HEIGHT / 8];
//static uint8_t SSD1306_Buffer[SSD1306_WIDTH * SSD1306_HEIGHT / 8];
static uint8_t SSD1306_Buffer[SSD1306_HEIGHT * SSD1306_WIDTH / 8];
// Een scherm-object om lokaal in te werken
static SSD1306_t SSD1306;
void startscrollright(uint8_t start, uint8_t stop){
ssd1306_WriteCommand(SSD1306_RIGHT_HORIZONTAL_SCROLL);
ssd1306_WriteCommand(0X00);
ssd1306_WriteCommand(start);
ssd1306_WriteCommand(0X00);
ssd1306_WriteCommand(stop);
ssd1306_WriteCommand(0X00);
ssd1306_WriteCommand(0XFF);
ssd1306_WriteCommand(SSD1306_ACTIVATE_SCROLL);
}
void ssd1306_Scroll()
{
static uint32_t end = SSD1306_WIDTH * 8;
uint8_t bit_antigo = 0;
for(uint32_t addr = 0; addr < end; addr++) {
if (addr > 0x79) {
bit_antigo = SSD1306_Buffer[addr] & 0x01;
}
SSD1306_Buffer[addr] >>= 1;
bit_antigo <<= 7;
SSD1306_Buffer[addr - SSD1306_WIDTH] |= bit_antigo;
}
}
//
// Een byte sturen naar het commando register
// Kan niet gebruikt worden buiten deze file
// Een byte sturen naar het commando register
// Kan niet gebruikt worden buiten deze file
//
void ssd1306_WriteCommand(uint8_t command)
{
HAL_I2C_Mem_Write(&hi2c1, SSD1306_I2C_ADDR, 0x00,1, &command, 1, 10);
HAL_I2C_Mem_Write(&hi2c1, SSD1306_I2C_ADDR, 0x00,1, &command, 1, 10);
}
//
// Het scherm initialiseren voor gebruik
// Het scherm initialiseren voor gebruik
//
uint8_t ssd1306_Init(void)
{
// Even wachten zodat het scherm zeker opgestart is
HAL_Delay(100);
/* Init LCD */
ssd1306_WriteCommand(0xAE); //display off
ssd1306_WriteCommand(0x20); //Set Memory Addressing Mode
ssd1306_WriteCommand(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
ssd1306_WriteCommand(0xB0); //Set Page Start Address for Page Addressing Mode,0-7
ssd1306_WriteCommand(0xC8); //Set COM Output Scan Direction
ssd1306_WriteCommand(0x00); //---set low column address
ssd1306_WriteCommand(0x10); //---set high column address
ssd1306_WriteCommand(0x40); //--set start line address
ssd1306_WriteCommand(0x81); //--set contrast control register
ssd1306_WriteCommand(0xFF);
ssd1306_WriteCommand(0xA1); //--set segment re-map 0 to 127
ssd1306_WriteCommand(0xA6); //--set normal display
ssd1306_WriteCommand(0xA8); //--set multiplex ratio(1 to 64)
ssd1306_WriteCommand(0x3F); //
ssd1306_WriteCommand(0xA4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
ssd1306_WriteCommand(0xD3); //-set display offset
ssd1306_WriteCommand(0x00); //-not offset
ssd1306_WriteCommand(0xD5); //--set display clock divide ratio/oscillator frequency
ssd1306_WriteCommand(0xF0); //--set divide ratio
ssd1306_WriteCommand(0xD9); //--set pre-charge period
ssd1306_WriteCommand(0x22); //
ssd1306_WriteCommand(0xDA); //--set com pins hardware configuration
ssd1306_WriteCommand(0x12);
ssd1306_WriteCommand(0xDB); //--set vcomh
ssd1306_WriteCommand(0x20); //0x20,0.77xVcc
ssd1306_WriteCommand(0x8D); //--set DC-DC enable
ssd1306_WriteCommand(0x14); //
ssd1306_WriteCommand(0xAF); //--turn on SSD1306 panel
/* Clearen scherm */
ssd1306_Fill(Black);
/* Update screen */
ssd1306_UpdateScreen();
/* Set default values */
SSD1306.CurrentX = 0;
SSD1306.CurrentY = 0;
/* Initialized OK */
SSD1306.Initialized = 1;
/* Return OK */
return 1;
{
// Even wachten zodat het scherm zeker opgestart is
HAL_Delay(100);
ssd1306_WriteCommand(SSD1306_DISPLAYOFF); // 0xAE
ssd1306_WriteCommand(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
ssd1306_WriteCommand(0x80); // the suggested ratio 0x80
ssd1306_WriteCommand(SSD1306_SETMULTIPLEX); // 0xA8
ssd1306_WriteCommand(SSD1306_HEIGHT - 1);
ssd1306_WriteCommand(SSD1306_SETDISPLAYOFFSET); // 0xD3
ssd1306_WriteCommand(0x0); // no offset
ssd1306_WriteCommand(SSD1306_SETSTARTLINE | 0x0); // line #0
ssd1306_WriteCommand(SSD1306_CHARGEPUMP); // 0x8D
ssd1306_WriteCommand(0x14);
ssd1306_WriteCommand(SSD1306_MEMORYMODE); // 0x20
ssd1306_WriteCommand(0x00); // 0x0 act like ks0108
ssd1306_WriteCommand(SSD1306_SEGREMAP | 0x1);
ssd1306_WriteCommand(SSD1306_COMSCANDEC);
ssd1306_WriteCommand(SSD1306_SETCOMPINS); // 0xDA
ssd1306_WriteCommand(0x12);
ssd1306_WriteCommand(SSD1306_SETCONTRAST); // 0x81
ssd1306_WriteCommand(0xCF);
ssd1306_WriteCommand(SSD1306_SETPRECHARGE);
ssd1306_WriteCommand(0xF1);
ssd1306_WriteCommand(SSD1306_SETVCOMDETECT); // 0xDB
ssd1306_WriteCommand(0x40);
ssd1306_WriteCommand(SSD1306_DISPLAYALLON_RESUME); // 0xA4
ssd1306_WriteCommand(SSD1306_NORMALDISPLAY); // 0xA6
ssd1306_WriteCommand(SSD1306_DEACTIVATE_SCROLL);
ssd1306_WriteCommand(SSD1306_DISPLAYON);//--turn on oled panel
/* Clearen scherm */
ssd1306_Fill(Black);
/* Update screen */
ssd1306_UpdateScreen();
/* Set default values */
SSD1306.CurrentX = 0;
SSD1306.CurrentY = 0;
/* Initialized OK */
SSD1306.Initialized = 1;
/* Return OK */
return 1;
}
//
// We zetten de hele buffer op een bepaalde kleur
// color => de kleur waarin alles moet
// We zetten de hele buffer op een bepaalde kleur
// color => de kleur waarin alles moet
//
void ssd1306_Fill(SSD1306_COLOR color)
{
/* Set memory */
uint32_t i;
/* Set memory */
uint32_t i;
for(i = 0; i < sizeof(SSD1306_Buffer); i++)
{
SSD1306_Buffer[i] = (color == Black) ? 0x00 : 0xFF;
}
for(i = 0; i < sizeof(SSD1306_Buffer); i++)
{
SSD1306_Buffer[i] = (color == Black) ? 0x00 : 0xFF;
}
}
//
// Alle weizigingen in de buffer naar het scherm sturen
// Alle weizigingen in de buffer naar het scherm sturen
//
void ssd1306_UpdateScreen(void)
{
uint8_t i;
for (i = 0; i < 8; i++) {
ssd1306_WriteCommand(0xB0 + i);
ssd1306_WriteCommand(0x00);
ssd1306_WriteCommand(0x10);
uint8_t i;
for (i = 0; i < 8; i++) {
ssd1306_WriteCommand(0xB0 + i);
ssd1306_WriteCommand(0x00);
ssd1306_WriteCommand(0x10);
// We schrijven alles map per map weg
HAL_I2C_Mem_Write(&hi2c1,SSD1306_I2C_ADDR,0x40,1,&SSD1306_Buffer[SSD1306_WIDTH * i],SSD1306_WIDTH,100);
}
// We schrijven alles map per map weg
HAL_I2C_Mem_Write(&hi2c1,SSD1306_I2C_ADDR,0x40,1,&SSD1306_Buffer[SSD1306_WIDTH * i],SSD1306_WIDTH,100);
}
}
//
// 1 pixel op het scherm tekenen
// X => X coordinaat
// Y => Y coordinaat
// color => kleur die pixel moet krijgen
// 1 pixel op het scherm tekenen
// X => X coordinaat
// Y => Y coordinaat
// color => kleur die pixel moet krijgen
//
void ssd1306_DrawPixel(uint8_t x, uint8_t y, SSD1306_COLOR color)
{
if (x >= SSD1306_WIDTH || y >= SSD1306_HEIGHT)
{
// We gaan niet buiten het scherm schrijven
return;
}
// Kijken of de pixel geinverteerd moet worden
if (SSD1306.Inverted)
{
color = (SSD1306_COLOR)!color;
}
// We zetten de juiste kleur voor de pixel
if (color == White)
{
SSD1306_Buffer[x + (y / 8) * SSD1306_WIDTH] |= 1 << (y % 8);
}
else
{
SSD1306_Buffer[x + (y / 8) * SSD1306_WIDTH] &= ~(1 << (y % 8));
}
if (x >= SSD1306_WIDTH || y >= SSD1306_HEIGHT)
{
// We gaan niet buiten het scherm schrijven
return;
}
// Kijken of de pixel geinverteerd moet worden
if (SSD1306.Inverted)
{
color = (SSD1306_COLOR)!color;
}
// We zetten de juiste kleur voor de pixel
if (color == White)
{
SSD1306_Buffer[x + (y / 8) * SSD1306_WIDTH] |= 1 << (y % 8);
}
else
{
SSD1306_Buffer[x + (y / 8) * SSD1306_WIDTH] &= ~(1 << (y % 8));
}
}
//
// We willen 1 char naar het scherm sturen
// ch => char om weg te schrijven
// Font => Font waarmee we gaan schrijven
// color => Black or White
// We willen 1 char naar het scherm sturen
// ch => char om weg te schrijven
// Font => Font waarmee we gaan schrijven
// color => Black or White
//
char ssd1306_WriteChar(char ch, FontDef Font, SSD1306_COLOR color)
{
uint32_t i, b, j;
// Kijken of er nog plaats is op deze lijn
if (SSD1306_WIDTH <= (SSD1306.CurrentX + Font.FontWidth) ||
SSD1306_HEIGHT <= (SSD1306.CurrentY + Font.FontHeight))
{
// Er is geen plaats meer
return 0;
}
// We gaan door het font
for (i = 0; i < Font.FontHeight; i++)
{
b = Font.data[(ch - 32) * Font.FontHeight + i];
for (j = 0; j < Font.FontWidth; j++)
{
if ((b << j) & 0x8000)
{
ssd1306_DrawPixel(SSD1306.CurrentX + j, (SSD1306.CurrentY + i), (SSD1306_COLOR) color);
}
else
{
ssd1306_DrawPixel(SSD1306.CurrentX + j, (SSD1306.CurrentY + i), (SSD1306_COLOR)!color);
}
}
}
// De huidige positie is nu verplaatst
SSD1306.CurrentX += Font.FontWidth;
// We geven het geschreven char terug voor validatie
return ch;
uint32_t i, b, j;
// Kijken of er nog plaats is op deze lijn
if (SSD1306_WIDTH <= (SSD1306.CurrentX + Font.FontWidth) ||
SSD1306_HEIGHT <= (SSD1306.CurrentY + Font.FontHeight))
{
// Er is geen plaats meer
return 0;
}
// We gaan door het font
for (i = 0; i < Font.FontHeight; i++)
{
b = Font.data[(ch - 32) * Font.FontHeight + i];
for (j = 0; j < Font.FontWidth; j++)
{
if ((b << j) & 0x8000)
{
ssd1306_DrawPixel(SSD1306.CurrentX + j, (SSD1306.CurrentY + i), (SSD1306_COLOR) color);
}
else
{
ssd1306_DrawPixel(SSD1306.CurrentX + j, (SSD1306.CurrentY + i), (SSD1306_COLOR)!color);
}
}
}
// De huidige positie is nu verplaatst
SSD1306.CurrentX += Font.FontWidth;
// We geven het geschreven char terug voor validatie
return ch;
}
//
// Functie voor het wegschrijven van een hele string
// str => string om op het scherm te schrijven
// Font => Het font dat gebruikt moet worden
// color => Black or White
// Functie voor het wegschrijven van een hele string
// str => string om op het scherm te schrijven
// Font => Het font dat gebruikt moet worden
// color => Black or White
//
char ssd1306_WriteString(char* str, FontDef Font, SSD1306_COLOR color)
{
// We schrijven alle char tot een nulbyte
while (*str)
{
if (ssd1306_WriteChar(*str, Font, color) != *str)
{
// Het karakter is niet juist weggeschreven
return *str;
}
// Volgende char
str++;
}
// Alles gelukt, we sturen dus 0 terug
return *str;
// We schrijven alle char tot een nulbyte
while (*str)
{
if (ssd1306_WriteChar(*str, Font, color) != *str)
{
// Het karakter is niet juist weggeschreven
return *str;
}
// Volgende char
str++;
}
// Alles gelukt, we sturen dus 0 terug
return *str;
}
//
// Zet de cursor op een coordinaat
// Zet de cursor op een coordinaat
//
void ssd1306_SetCursor(uint8_t x, uint8_t y)
{
/* Set write pointers */
SSD1306.CurrentX = x;
SSD1306.CurrentY = y;
/* Set write pointers */
SSD1306.CurrentX = x;
SSD1306.CurrentY = y;
}