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https://github.com/nopnop2002/esp-idf-ssd1306.git
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added DeveiceAddDemo
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nopnop2002
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8
DeviceAddDemo/CMakeLists.txt
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8
DeviceAddDemo/CMakeLists.txt
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# The following lines of boilerplate have to be in your project's CMakeLists
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# in this exact order for cmake to work correctly
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cmake_minimum_required(VERSION 3.5)
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set(EXTRA_COMPONENT_DIRS ../components/ssd1306)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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project(ssd1306)
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253
DeviceAddDemo/README.md
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253
DeviceAddDemo/README.md
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# DeviceAddDemo for SSD1306
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I received a question about using an SSD1306 and other i2c/spi devices at the same time.
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A new i2c driver is now available in ESP-IDF V5.2.
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This complicated the use of other i2c devices at the same time as the SSD1306.
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I will record the survey results here.
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If you want to use SSD1306 and other i2c/spi devices at the same time, please follow the guide below.
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# Using i2c interface
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### Case 1
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Use multiple i2c devices on one i2c bus.
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SCL and SDA are shared by all devices.
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```
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I2C_NUM_0 --+-- I2C SSD1306
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+---Any I2C Device
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```
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In the XTENSA series, you can use I2C_NUM_1 bus instead of I2C_NUM_0 bus.
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```
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I2C_NUM_1 --+-- I2C SSD1306
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+---Any I2C Device
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```
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- Legacy driver
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We only need to run this code once.
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There is no need to memorize any data.
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SSD1306 and other device use the same frequency.
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Please note that the maximum i2c clock frequency of SSD1306 is 400KHz.
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Under ESP-IDF V5.2 or later, this project uses the new I2C driver, but there is an option to force the use of the legacy I2C driver.
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```
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i2c_config_t i2c_config = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = CONFIG_SDA_GPIO,
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.scl_io_num = CONFIG_SCL_GPIO,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = I2C_MASTER_FREQ_HZ
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};
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ESP_ERROR_CHECK(i2c_param_config(I2C_NUM_0, &i2c_config));
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ESP_ERROR_CHECK(i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0));
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```
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This project uses the following functions to install the i2c driver.
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```
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i2c_master_init(&dev, CONFIG_SDA_GPIO, CONFIG_SCL_GPIO, CONFIG_RESET_GPIO);
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```
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This project allows you to use an initialization function that does not install the i2c driver.
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```
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i2c_device_add(&dev, i2c_num, CONFIG_RESET_GPIO);
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```
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The i2c driver must be installed before using this initialization function.
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```
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// install i2c master driver
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i2c_config_t i2c_config = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = CONFIG_SDA_GPIO,
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.scl_io_num = CONFIG_SCL_GPIO,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 400000
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};
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ESP_ERROR_CHECK(i2c_param_config(I2C_NUM_0, &i2c_config));
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ESP_ERROR_CHECK(i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0));
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// add new device to i2c bus
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i2c_device_add(&dev, I2C_NUM_0, CONFIG_RESET_GPIO);
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```
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- New i2c driver
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We need to run this code on the first i2c device.
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```
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i2c_master_bus_config_t i2c_mst_config = {
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.clk_source = I2C_CLK_SRC_DEFAULT,
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.glitch_ignore_cnt = 7,
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.i2c_port = I2C_NUM_0,
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.scl_io_num = scl,
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.sda_io_num = sda,
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.flags.enable_internal_pullup = true,
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};
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i2c_master_bus_handle_t bus_handle;
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ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));
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i2c_device_config_t dev_cfg = {
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.dev_addr_length = I2C_ADDR_BIT_LEN_7,
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.device_address = I2C_ADDRESS1,
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.scl_speed_hz = I2C_MASTER_FREQ_HZ1,
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};
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i2c_master_dev_handle_t dev_handle;
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ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &dev_cfg, &dev_handle));
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```
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We need to run this code on the second device.
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SSD1306 and other device can use different frequencies.
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```
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// We need to load bus_handle from somewhere.
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i2c_device_config_t dev_cfg = {
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.dev_addr_length = I2C_ADDR_BIT_LEN_7,
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.device_address = I2C_ADDRESS2,
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.scl_speed_hz = I2C_MASTER_FREQ_HZ2,
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};
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i2c_master_dev_handle_t dev_handle;
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ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &dev_cfg, &dev_handle));
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```
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This project uses the following functions to install the i2c driver.
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```
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i2c_master_init(&dev, CONFIG_SDA_GPIO, CONFIG_SCL_GPIO, CONFIG_RESET_GPIO);
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```
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This project allows you to use an initialization function that does not install the i2c driver.
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```
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i2c_bus_add(&dev, bus_handle, i2c_num, CONFIG_RESET_GPIO);
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```
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The i2c driver must be installed before using this initialization function.
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```
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// install i2c master driver
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i2c_master_bus_config_t i2c_mst_config = {
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.clk_source = I2C_CLK_SRC_DEFAULT,
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.glitch_ignore_cnt = 7,
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.i2c_port = I2C_NUM_0,
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.scl_io_num = CONFIG_SCL_GPIO,
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.sda_io_num = CONFIG_SDA_GPIO,
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.flags.enable_internal_pullup = true,
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};
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i2c_master_bus_handle_t bus_handle;
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ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));
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// add new device to i2c bus
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i2c_bus_add(&dev, bus_handle, I2C_NUM_0, CONFIG_RESET_GPIO);
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```
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---
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### Case 2
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Use multiple i2c devices on two i2c bus.
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SCL and SDA each use separate GPIOs.
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Install the i2c master driver for each of I2C_NUM_0 and I2C_NUM_1.
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The frequencies of I2C_NUM_0 and I2C_NUM_1 can be set completely independently.
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```
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I2C_NUM_0 ----- I2C SSD1306
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I2C_NUM_1 ----- Any I2C Device
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```
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This is possible with both the new i2c driver or the legacy i2c driver, but **both buses must use the same driver.**
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This is not acceptable.
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```
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I2C_NUM_0 ----- I2C SSD1306 using new i2c driver
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I2C_NUM_1 ----- Any I2C Device using legacy i2c driver
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```
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If other i2c devices use legacy i2c drivers, SSD1306 must also use legacy i2c drivers.
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Under ESP-IDF V5.2 or later, this project uses the new I2C driver, but there is an option to force the use of the legacy I2C driver.
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```
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I2C_NUM_0 ----- I2C SSD1306 using legacy i2c driver
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I2C_NUM_1 ----- Any I2C Device using legacy i2c driver
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```
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If SSD1306 use new i2c drivers, other i2c devices must also use new i2c drivers.
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```
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I2C_NUM_0 ----- I2C SSD1306 using new i2c driver
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I2C_NUM_1 ----- Any I2C Device using new i2c driver
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```
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ESP32C series has only one i2c bus.
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This is not available on the ESP32C series.
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Can only be used with XTENSA series.
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---
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# Using spi interface
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### Case 1
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Use multiple spi devices on one spi bus.
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MOSI and SCLK are shared by all devices.
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```
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SPI2_HOST --+-- SPI SSD1306
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+---Any SPI Device
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```
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In the XTENSA series, you can use SPI2_HOST bus instead of SPI3_HOST bus.
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```
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SPI3_HOST --+-- SPI SSD1306
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+---Any SPI Device
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```
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We only need to run this code once.
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```
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spi_bus_config_t spi_bus_config = {
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.mosi_io_num = CONFIG_MOSI_GPIO,
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.miso_io_num = -1,
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.sclk_io_num = CONFIG_SCLK_GPIO,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.max_transfer_sz = 0,
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.flags = 0
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};
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ESP_LOGI(tag, "SPI HOST_ID=%d", host_id);
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esp_err_t ret = spi_bus_initialize( host_id, &spi_bus_config, SPI_DMA_CH_AUTO );
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ESP_LOGI(tag, "spi_bus_initialize=%d",ret);
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```
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This project uses the following functions to install the spi driver.
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```
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spi_master_init(&dev, CONFIG_MOSI_GPIO, CONFIG_SCLK_GPIO, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
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```
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This project allows you to use an initialization function that does not install the spi driver.
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```
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spi_device_add(&dev, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
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```
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The spi driver must be installed before using this initialization function.
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```
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// install spi master driver
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spi_bus_config_t spi_bus_config = {
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.mosi_io_num = CONFIG_MOSI_GPIO,
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.miso_io_num = -1,
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.sclk_io_num = CONFIG_SCLK_GPIO,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.max_transfer_sz = 0,
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.flags = 0
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};
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esp_err_t ret = spi_bus_initialize( SPI2_HOST, &spi_bus_config, SPI_DMA_CH_AUTO );
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ESP_LOGI(tag, "spi_bus_initialize=%d",ret);
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assert(ret==ESP_OK);
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// add new device to spi bus
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spi_device_add(&dev, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
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```
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### Case 2
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Use multiple spi devices on two spi bus.
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MOSI and SCLK each use separate GPIOs.
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Install the spi master driver for each of SPI2_HOST and SPI3_HOST.
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```
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SPI2_HOST ----- SPI SSD1306
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SPI3_HOST ----- Any SPI Device
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```
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4
DeviceAddDemo/main/CMakeLists.txt
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4
DeviceAddDemo/main/CMakeLists.txt
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set(COMPONENT_SRCS "main.c")
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set(COMPONENT_ADD_INCLUDEDIRS "")
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register_component()
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8
DeviceAddDemo/main/component.mk
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8
DeviceAddDemo/main/component.mk
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#
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# Main component makefile.
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#
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# This Makefile can be left empty. By default, it will take the sources in the
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# src/ directory, compile them and link them into lib(subdirectory_name).a
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# in the build directory. This behaviour is entirely configurable,
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# please read the ESP-IDF documents if you need to do this.
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#
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268
DeviceAddDemo/main/main.c
Normal file
268
DeviceAddDemo/main/main.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_log.h"
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#if CONFIG_LEGACY_DRIVER
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#include "driver/i2c.h"
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#else
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#include "driver/i2c_master.h"
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#endif
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#include "ssd1306.h"
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#include "font8x8_basic.h"
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/*
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You have to set this config value with menuconfig
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CONFIG_INTERFACE
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for i2c
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CONFIG_MODEL
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CONFIG_SDA_GPIO
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CONFIG_SCL_GPIO
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CONFIG_RESET_GPIO
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for SPI
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CONFIG_CS_GPIO
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CONFIG_DC_GPIO
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CONFIG_RESET_GPIO
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*/
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#define tag "SSD1306"
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void app_main(void)
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{
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SSD1306_t dev;
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int center, top, bottom;
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char lineChar[20];
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#if CONFIG_I2C_INTERFACE
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ESP_LOGI(tag, "INTERFACE is i2c");
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ESP_LOGI(tag, "CONFIG_SDA_GPIO=%d",CONFIG_SDA_GPIO);
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ESP_LOGI(tag, "CONFIG_SCL_GPIO=%d",CONFIG_SCL_GPIO);
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ESP_LOGI(tag, "CONFIG_RESET_GPIO=%d",CONFIG_RESET_GPIO);
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#if CONFIG_I2C_PORT_0
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i2c_port_t i2c_num = I2C_NUM_0;
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#else
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i2c_port_t i2c_num = I2C_NUM_1;
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#endif
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#if CONFIG_LEGACY_DRIVER
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ESP_LOGI(tag, "I2C_LEGACY_DRIVER");
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// install i2c master driver
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i2c_config_t i2c_config = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = CONFIG_SDA_GPIO,
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.scl_io_num = CONFIG_SCL_GPIO,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 400000
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};
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ESP_ERROR_CHECK(i2c_param_config(i2c_num, &i2c_config));
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ESP_ERROR_CHECK(i2c_driver_install(i2c_num, I2C_MODE_MASTER, 0, 0, 0));
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// add new device to i2c bus
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i2c_device_add(&dev, i2c_num, CONFIG_RESET_GPIO);
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#else
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ESP_LOGI(tag, "I2C_NEW_DRIVER");
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// install i2c master driver
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i2c_master_bus_config_t i2c_mst_config = {
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.clk_source = I2C_CLK_SRC_DEFAULT,
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.glitch_ignore_cnt = 7,
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.i2c_port = i2c_num,
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.scl_io_num = CONFIG_SCL_GPIO,
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.sda_io_num = CONFIG_SDA_GPIO,
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.flags.enable_internal_pullup = true,
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};
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i2c_master_bus_handle_t bus_handle;
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ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));
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// add new device to i2c bus
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i2c_bus_add(&dev, bus_handle, i2c_num, CONFIG_RESET_GPIO);
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#endif
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#endif // CONFIG_I2C_INTERFACE
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#if CONFIG_SPI_INTERFACE
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ESP_LOGI(tag, "INTERFACE is SPI");
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ESP_LOGI(tag, "CONFIG_MOSI_GPIO=%d",CONFIG_MOSI_GPIO);
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ESP_LOGI(tag, "CONFIG_SCLK_GPIO=%d",CONFIG_SCLK_GPIO);
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ESP_LOGI(tag, "CONFIG_CS_GPIO=%d",CONFIG_CS_GPIO);
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ESP_LOGI(tag, "CONFIG_DC_GPIO=%d",CONFIG_DC_GPIO);
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ESP_LOGI(tag, "CONFIG_RESET_GPIO=%d",CONFIG_RESET_GPIO);
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spi_bus_config_t spi_bus_config = {
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.mosi_io_num = CONFIG_MOSI_GPIO,
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.miso_io_num = -1,
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.sclk_io_num = CONFIG_SCLK_GPIO,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.max_transfer_sz = 0,
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.flags = 0
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};
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#if CONFIG_SPI2_HOST
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spi_host_device_t host_id = SPI2_HOST;
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#else
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spi_host_device_t host_id = SPI3_HOST;
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#endif
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ESP_LOGI(tag, "SPI HOST_ID=%d", host_id);
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esp_err_t ret = spi_bus_initialize( host_id, &spi_bus_config, SPI_DMA_CH_AUTO );
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ESP_LOGI(tag, "spi_bus_initialize=%d",ret);
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assert(ret==ESP_OK);
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spi_device_add(&dev, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
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#endif // CONFIG_SPI_INTERFACE
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#if CONFIG_FLIP
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dev._flip = true;
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ESP_LOGW(tag, "Flip upside down");
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#endif
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#if CONFIG_SSD1306_128x64
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ESP_LOGI(tag, "Panel is 128x64");
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ssd1306_init(&dev, 128, 64);
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#endif // CONFIG_SSD1306_128x64
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#if CONFIG_SSD1306_128x32
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ESP_LOGI(tag, "Panel is 128x32");
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ssd1306_init(&dev, 128, 32);
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#endif // CONFIG_SSD1306_128x32
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ssd1306_clear_screen(&dev, false);
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ssd1306_contrast(&dev, 0xff);
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ssd1306_display_text_x3(&dev, 0, "Hello", 5, false);
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vTaskDelay(3000 / portTICK_PERIOD_MS);
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#if CONFIG_SSD1306_128x64
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top = 2;
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center = 3;
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bottom = 8;
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ssd1306_display_text(&dev, 0, "SSD1306 128x64", 14, false);
|
||||
ssd1306_display_text(&dev, 1, "ABCDEFGHIJKLMNOP", 16, false);
|
||||
ssd1306_display_text(&dev, 2, "abcdefghijklmnop",16, false);
|
||||
ssd1306_display_text(&dev, 3, "Hello World!!", 13, false);
|
||||
//ssd1306_clear_line(&dev, 4, true);
|
||||
//ssd1306_clear_line(&dev, 5, true);
|
||||
//ssd1306_clear_line(&dev, 6, true);
|
||||
//ssd1306_clear_line(&dev, 7, true);
|
||||
ssd1306_display_text(&dev, 4, "SSD1306 128x64", 14, true);
|
||||
ssd1306_display_text(&dev, 5, "ABCDEFGHIJKLMNOP", 16, true);
|
||||
ssd1306_display_text(&dev, 6, "abcdefghijklmnop",16, true);
|
||||
ssd1306_display_text(&dev, 7, "Hello World!!", 13, true);
|
||||
#endif // CONFIG_SSD1306_128x64
|
||||
|
||||
#if CONFIG_SSD1306_128x32
|
||||
top = 1;
|
||||
center = 1;
|
||||
bottom = 4;
|
||||
ssd1306_display_text(&dev, 0, "SSD1306 128x32", 14, false);
|
||||
ssd1306_display_text(&dev, 1, "Hello World!!", 13, false);
|
||||
//ssd1306_clear_line(&dev, 2, true);
|
||||
//ssd1306_clear_line(&dev, 3, true);
|
||||
ssd1306_display_text(&dev, 2, "SSD1306 128x32", 14, true);
|
||||
ssd1306_display_text(&dev, 3, "Hello World!!", 13, true);
|
||||
#endif // CONFIG_SSD1306_128x32
|
||||
vTaskDelay(3000 / portTICK_PERIOD_MS);
|
||||
|
||||
// Display Count Down
|
||||
uint8_t image[24];
|
||||
memset(image, 0, sizeof(image));
|
||||
ssd1306_display_image(&dev, top, (6*8-1), image, sizeof(image));
|
||||
ssd1306_display_image(&dev, top+1, (6*8-1), image, sizeof(image));
|
||||
ssd1306_display_image(&dev, top+2, (6*8-1), image, sizeof(image));
|
||||
for(int font=0x39;font>0x30;font--) {
|
||||
memset(image, 0, sizeof(image));
|
||||
ssd1306_display_image(&dev, top+1, (7*8-1), image, 8);
|
||||
memcpy(image, font8x8_basic_tr[font], 8);
|
||||
if (dev._flip) ssd1306_flip(image, 8);
|
||||
ssd1306_display_image(&dev, top+1, (7*8-1), image, 8);
|
||||
vTaskDelay(1000 / portTICK_PERIOD_MS);
|
||||
}
|
||||
|
||||
// Scroll Up
|
||||
ssd1306_clear_screen(&dev, false);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, 0, "---Scroll UP---", 16, true);
|
||||
//ssd1306_software_scroll(&dev, 7, 1);
|
||||
ssd1306_software_scroll(&dev, (dev._pages - 1), 1);
|
||||
for (int line=0;line<bottom+10;line++) {
|
||||
lineChar[0] = 0x01;
|
||||
sprintf(&lineChar[1], " Line %02d", line);
|
||||
ssd1306_scroll_text(&dev, lineChar, strlen(lineChar), false);
|
||||
vTaskDelay(500 / portTICK_PERIOD_MS);
|
||||
}
|
||||
vTaskDelay(3000 / portTICK_PERIOD_MS);
|
||||
|
||||
// Scroll Down
|
||||
ssd1306_clear_screen(&dev, false);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, 0, "--Scroll DOWN--", 16, true);
|
||||
//ssd1306_software_scroll(&dev, 1, 7);
|
||||
ssd1306_software_scroll(&dev, 1, (dev._pages - 1) );
|
||||
for (int line=0;line<bottom+10;line++) {
|
||||
lineChar[0] = 0x02;
|
||||
sprintf(&lineChar[1], " Line %02d", line);
|
||||
ssd1306_scroll_text(&dev, lineChar, strlen(lineChar), false);
|
||||
vTaskDelay(500 / portTICK_PERIOD_MS);
|
||||
}
|
||||
vTaskDelay(3000 / portTICK_PERIOD_MS);
|
||||
|
||||
// Page Down
|
||||
ssd1306_clear_screen(&dev, false);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, 0, "---Page DOWN---", 16, true);
|
||||
ssd1306_software_scroll(&dev, 1, (dev._pages-1) );
|
||||
for (int line=0;line<bottom+10;line++) {
|
||||
//if ( (line % 7) == 0) ssd1306_scroll_clear(&dev);
|
||||
if ( (line % (dev._pages-1)) == 0) ssd1306_scroll_clear(&dev);
|
||||
lineChar[0] = 0x02;
|
||||
sprintf(&lineChar[1], " Line %02d", line);
|
||||
ssd1306_scroll_text(&dev, lineChar, strlen(lineChar), false);
|
||||
vTaskDelay(500 / portTICK_PERIOD_MS);
|
||||
}
|
||||
vTaskDelay(3000 / portTICK_PERIOD_MS);
|
||||
|
||||
// Horizontal Scroll
|
||||
ssd1306_clear_screen(&dev, false);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, center, "Horizontal", 10, false);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_RIGHT);
|
||||
vTaskDelay(5000 / portTICK_PERIOD_MS);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_LEFT);
|
||||
vTaskDelay(5000 / portTICK_PERIOD_MS);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_STOP);
|
||||
|
||||
// Vertical Scroll
|
||||
ssd1306_clear_screen(&dev, false);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, center, "Vertical", 8, false);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_DOWN);
|
||||
vTaskDelay(5000 / portTICK_PERIOD_MS);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_UP);
|
||||
vTaskDelay(5000 / portTICK_PERIOD_MS);
|
||||
ssd1306_hardware_scroll(&dev, SCROLL_STOP);
|
||||
|
||||
// Invert
|
||||
ssd1306_clear_screen(&dev, true);
|
||||
ssd1306_contrast(&dev, 0xff);
|
||||
ssd1306_display_text(&dev, center, " Good Bye!!", 12, true);
|
||||
vTaskDelay(5000 / portTICK_PERIOD_MS);
|
||||
|
||||
|
||||
// Fade Out
|
||||
ssd1306_fadeout(&dev);
|
||||
|
||||
#if 0
|
||||
// Fade Out
|
||||
for(int contrast=0xff;contrast>0;contrast=contrast-0x20) {
|
||||
ssd1306_contrast(&dev, contrast);
|
||||
vTaskDelay(40);
|
||||
}
|
||||
#endif
|
||||
|
||||
// Restart module
|
||||
esp_restart();
|
||||
}
|
||||
18
DeviceAddDemo/sdkconfig.defaults
Normal file
18
DeviceAddDemo/sdkconfig.defaults
Normal file
@ -0,0 +1,18 @@
|
||||
#
|
||||
# ESP32-specific
|
||||
#
|
||||
CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
|
||||
CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ=240
|
||||
|
||||
#
|
||||
# ESP32S2-specific
|
||||
#
|
||||
CONFIG_ESP32S2_DEFAULT_CPU_FREQ_240=y
|
||||
CONFIG_ESP32S2_DEFAULT_CPU_FREQ_MHZ=240
|
||||
|
||||
#
|
||||
# ESP32S3-specific
|
||||
#
|
||||
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240=y
|
||||
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_MHZ=240
|
||||
|
||||
Loading…
Reference in New Issue
Block a user