sirian/oled-counter-esp32
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add parallelism

Browse Source
This commit is contained in:
Elias Ahokas
2025-10-18 20:56:33 +03:00
parent c2aabfd227
commit d8baf5370c
1 changed files with 58 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
main/main.c
View File

@@ -15,9 +15,15 @@
#define DISP_ADDRESS 0X3c
#define I2C_FREQ 400000
typedef struct {
uint8_t page_num;
uint8_t data[128];
} page_data_t;
static i2c_master_dev_handle_t disp_handle;
static lv_obj_t *counter_label;
static SemaphoreHandle_t flush_sem = NULL;
static QueueHandle_t page_queue = NULL;
static uint8_t lv_buf[(128 * 64/8)+8];
void init_i2c(void){
@@ -44,7 +50,7 @@ void init_i2c(void){
}
void i2c_disp_send_cmd(uint8_t cmd){
void disp_send_cmd(uint8_t cmd){
uint8_t data[2] = {0x00, cmd}; /*command mode*/
i2c_master_transmit(disp_handle, data, sizeof(data), pdMS_TO_TICKS(1000));
@@ -52,7 +58,7 @@ void i2c_disp_send_cmd(uint8_t cmd){
}
void i2c_disp_send_data(uint8_t *data, size_t len){
void disp_send_data(uint8_t *data, size_t len){
uint8_t *buf = malloc(len+1);
buf[0] = 0x40; /*data mode*/
memcpy(&buf[1], data, len);
@@ -61,48 +67,64 @@ void i2c_disp_send_data(uint8_t *data, size_t len){
free(buf);
}
void send_page_task(void *arg){
page_data_t page;
while(1){
if(xQueueReceive(page_queue, &page, portMAX_DELAY)){
disp_send_cmd(0x21);
disp_send_cmd(0);
disp_send_cmd(127);
disp_send_cmd(0x22);
disp_send_cmd(page.page_num);
disp_send_cmd(page.page_num);
disp_send_data(page.data, 128);
}
}
}
void init_display(void){
i2c_disp_send_cmd(0xAE); // Display OFF
disp_send_cmd(0xAE); // Display OFF
i2c_disp_send_cmd(0xD5); // Set display clock divide ratio/oscillator frequency
i2c_disp_send_cmd(0x80); // Default value
disp_send_cmd(0xD5); // Set display clock divide ratio/oscillator frequency
disp_send_cmd(0x80); // Default value
i2c_disp_send_cmd(0xA8); // Set multiplex ratio
i2c_disp_send_cmd(0x3F); // 1/64 duty (64 COM lines)
disp_send_cmd(0xA8); // Set multiplex ratio
disp_send_cmd(0x3F); // 1/64 duty (64 COM lines)
i2c_disp_send_cmd(0xD3); // Set display offset
i2c_disp_send_cmd(0x00); // No offset
disp_send_cmd(0xD3); // Set display offset
disp_send_cmd(0x00); // No offset
i2c_disp_send_cmd(0x40); // Set display start line to 0
disp_send_cmd(0x40); // Set display start line to 0
i2c_disp_send_cmd(0x8D); // Charge pump setting
i2c_disp_send_cmd(0x14); // Enable charge pump
disp_send_cmd(0x8D); // Charge pump setting
disp_send_cmd(0x14); // Enable charge pump
i2c_disp_send_cmd(0x20); // Set Memory Addressing Mode
i2c_disp_send_cmd(0x00); // Horizontal addressing mode
disp_send_cmd(0x20); // Set Memory Addressing Mode
disp_send_cmd(0x00); // Horizontal addressing mode
i2c_disp_send_cmd(0xA1); // Set segment re-map (A0h/A1h)
i2c_disp_send_cmd(0xC8); // Set COM output scan direction
disp_send_cmd(0xA1); // Set segment re-map (A0h/A1h)
disp_send_cmd(0xC8); // Set COM output scan direction
i2c_disp_send_cmd(0xDA); // Set COM pins hardware configuration
i2c_disp_send_cmd(0x12); // Alternative COM pin config
disp_send_cmd(0xDA); // Set COM pins hardware configuration
disp_send_cmd(0x12); // Alternative COM pin config
i2c_disp_send_cmd(0x81); // Set contrast control
i2c_disp_send_cmd(0xCF); // Max contrast
disp_send_cmd(0x81); // Set contrast control
disp_send_cmd(0xCF); // Max contrast
i2c_disp_send_cmd(0xD9); // Set pre-charge period
i2c_disp_send_cmd(0xF1); // Phase 1: 15 DCLK, Phase 2: 15 DCLK
disp_send_cmd(0xD9); // Set pre-charge period
disp_send_cmd(0xF1); // Phase 1: 15 DCLK, Phase 2: 15 DCLK
i2c_disp_send_cmd(0xDB); // Set VCOMH deselect level
i2c_disp_send_cmd(0x40); // ~0.77 x VCC
disp_send_cmd(0xDB); // Set VCOMH deselect level
disp_send_cmd(0x40); // ~0.77 x VCC
i2c_disp_send_cmd(0xA4); // Entire display ON (resume to RAM content)
i2c_disp_send_cmd(0xA6); // Set normal display (not inverted)
disp_send_cmd(0xA4); // Entire display ON (resume to RAM content)
disp_send_cmd(0xA6); // Set normal display (not inverted)
i2c_disp_send_cmd(0x2E); // Deactivate scroll
disp_send_cmd(0x2E); // Deactivate scroll
i2c_disp_send_cmd(0xAF); // Display ON
disp_send_cmd(0xAF); // Display ON
}
void lvgl_flush_callback(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map){
@@ -146,14 +168,10 @@ void lvgl_flush_callback(lv_display_t *disp, const lv_area_t *area, uint8_t *px_
}
if((i+1)% bytes_per_page == 0 && i+1 != 0){
/*page finished => send to display*/
i2c_disp_send_cmd(0x21);
i2c_disp_send_cmd(0);
i2c_disp_send_cmd(127);
i2c_disp_send_cmd(0x22);
i2c_disp_send_cmd(page);
i2c_disp_send_cmd(page);
i2c_disp_send_data(buf, sizeof(buf));
page_data_t page_data;
page_data.page_num = page;
memcpy(page_data.data, buf, 128);
xQueueSend(page_queue, &page_data, portMAX_DELAY);
memset(buf, 0, sizeof(buf));
page++;
page_y = 0;
@@ -170,15 +188,15 @@ void init_graphics(void){
xSemaphoreGive(flush_sem);
}
page_queue = xQueueCreate(8, sizeof(page_data_t));
memset(lv_buf, 0, sizeof(lv_buf));
lv_init();
lv_display_t *display = lv_display_create(128, 64);
lv_display_set_color_format(display, LV_COLOR_FORMAT_I1);
lv_display_set_flush_cb(display, lvgl_flush_callback);
lv_display_set_buffers(display, lv_buf, NULL, sizeof(lv_buf), LV_DISPLAY_RENDER_MODE_FULL);
lv_obj_t *scr = lv_screen_active();
@@ -251,10 +269,11 @@ void app_main(void){
init_graphics();
vTaskDelay(pdMS_TO_TICKS(50));
xTaskCreate(send_page_task, "page_send", 4096, NULL, 2, NULL);
xTaskCreate(lv_tick_task, "lv_tick", 4096, NULL, 1, NULL);
xTaskCreate(lv_task, "lv_task", 8192, NULL, 3, NULL);
vTaskDelay(pdMS_TO_TICKS(150));
vTaskDelay(pdMS_TO_TICKS(200));
create_counter();
}