97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
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#include <espressif/esp_common.h>
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#include <esp/uart.h>
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#include <FreeRTOS.h>
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#include <task.h>
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#include <queue.h>
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#include <string.h>
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#include <ssd1306/ssd1306.h>
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/* Remove this line if your display connected by SPI */
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#define I2C_CONNECTION
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#ifdef I2C_CONNECTION
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#include <i2c/i2c.h>
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#endif
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#include "image.xbm"
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/* Change this according to you schematics and display size */
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#define DISPLAY_WIDTH 128
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#define DISPLAY_HEIGHT 64
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#ifdef I2C_CONNECTION
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#define PROTOCOL SSD1306_PROTO_I2C
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#define ADDR SSD1306_I2C_ADDR_0
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#define SCL_PIN 5
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#define SDA_PIN 4
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#else
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#define PROTOCOL SSD1306_PROTO_SPI4
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#define CS_PIN 5
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#define DC_PIN 4
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#endif
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/* Declare device descriptor */
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static const ssd1306_t dev = {
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.protocol = PROTOCOL,
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#ifdef I2C_CONNECTION
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.addr = ADDR,
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#else
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.cs_pin = CS_PIN,
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.dc_pin = DC_PIN,
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#endif
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.width = DISPLAY_WIDTH,
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.height = DISPLAY_HEIGHT
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};
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/* Local frame buffer */
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static uint8_t buffer[DISPLAY_WIDTH * DISPLAY_HEIGHT / 8];
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static void ssd1306_task(void *pvParameters)
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{
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printf("%s: Started user interface task\n", __FUNCTION__);
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vTaskDelay(1000/portTICK_PERIOD_MS);
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if (ssd1306_load_xbm(&dev, image_bits, buffer))
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goto error_loop;
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ssd1306_set_whole_display_lighting(&dev, false);
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bool fwd = false;
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while (1) {
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vTaskDelay(2000 / portTICK_PERIOD_MS);
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printf("%s: still alive, flipping!\n", __FUNCTION__);
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ssd1306_set_scan_direction_fwd(&dev, fwd);
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fwd = !fwd;
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}
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error_loop:
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printf("%s: error while loading framebuffer into SSD1306\n", __func__);
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for(;;){
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vTaskDelay(2000 / portTICK_PERIOD_MS);
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printf("%s: error loop\n", __FUNCTION__);
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}
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}
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void user_init(void)
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{
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// Setup HW
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n", sdk_system_get_sdk_version());
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#ifdef I2C_CONNECTION
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i2c_init(SCL_PIN, SDA_PIN);
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#endif
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while (ssd1306_init(&dev) != 0)
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{
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printf("%s: failed to init SSD1306 lcd\n", __func__);
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vTaskDelay(1000/portTICK_PERIOD_MS);
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}
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ssd1306_set_whole_display_lighting(&dev, true);
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vTaskDelay(1000/portTICK_PERIOD_MS);
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// Create user interface task
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xTaskCreate(ssd1306_task, "ssd1306_task", 256, NULL, 2, NULL);
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}
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