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Driver and example for SSD1306 128x64 I2C display (#254)

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urx 2016-10-28 16:08:37 +04:00 • committed by sheinz
parent e71919410d
commit 5b12ba54dc
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65
examples/ssd1306_i2c/ssd1306_i2c.c Normal file
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#include "espressif/esp_common.h"
#include "esp/uart.h"
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include <string.h>
#include "i2c/i2c.h"
#include "ssd1306/ssd1306.h"
#include "image.xbm"
/* Change this according to you schematics */
#define SCL_PIN GPIO_ID_PIN((14))
#define SDA_PIN GPIO_ID_PIN((12))
/* Local frame buffer */
static uint8_t buffer[SSD1306_ROWS * SSD1306_COLS / 8];
static void ssd1306_task(void *pvParameters)
{
printf("%s: Started user interface task\n", __FUNCTION__);
vTaskDelay(1000/portTICK_RATE_MS);
if (ssd1306_load_xbm(image_bits, buffer))
goto error_loop;
ssd1306_set_whole_display_lighting(false);
while (1) {
vTaskDelay(2000 / portTICK_RATE_MS);
printf("%s: steel alive\n", __FUNCTION__);
}
error_loop:
printf("%s: error while loading framebuffer into SSD1306\n", __func__);
for(;;){
vTaskDelay(2000 / portTICK_RATE_MS);
printf("%s: error loop\n", __FUNCTION__);
}
}
void user_init(void)
{
// Setup HW
uart_set_baud(0, 115200);
printf("SDK version:%s\n", sdk_system_get_sdk_version());
i2c_init(SCL_PIN, SDA_PIN);
if (ssd1306_init()){
for (;;) {
printf("%s: failed to init SSD1306 lcd\n", __func__);
vTaskDelay(1000/portTICK_RATE_MS);
}
}
ssd1306_set_whole_display_lighting(true);
vTaskDelay(1000/portTICK_RATE_MS);
// Create user interface task
xTaskCreate(ssd1306_task, "ssd1306_task", 256, NULL, 2, NULL);
}