c8ffd94fe9
Fix bug where sartup randomly crasehd several times because spi config was initialized with random data -> init with 0 Fix bug where length now was not truncated resulting in flickerin Fix bug in welcome message where hello string contained random data
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
#include "display.hpp"
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//=== variables ===
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static const char *TAG = "display"; //tag for logging
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max7219_t display;
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//========================
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//===== init display =====
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//========================
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void display_init(){
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ESP_LOGI(TAG, "initializing display...");
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// Configure SPI bus
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spi_bus_config_t cfg;
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memset(&cfg, 0, sizeof(spi_bus_config_t)); //init bus config with 0 to prevent bugs with random flags
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cfg.mosi_io_num = DISPLAY_PIN_NUM_MOSI;
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cfg.miso_io_num = -1;
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cfg.sclk_io_num = DISPLAY_PIN_NUM_CLK;
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cfg.quadwp_io_num = -1;
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cfg.quadhd_io_num = -1;
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cfg.max_transfer_sz = 0;
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cfg.flags = 0;
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ESP_ERROR_CHECK(spi_bus_initialize(HOST, &cfg, 1));
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// Configure device
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max7219_t dev;
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dev.cascade_size = 2;
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dev.digits = 0;
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dev.mirrored = true;
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ESP_ERROR_CHECK(max7219_init_desc(&dev, HOST, MAX7219_MAX_CLOCK_SPEED_HZ, DISPLAY_PIN_NUM_CS));
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ESP_ERROR_CHECK(max7219_init(&dev));
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//0...15
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ESP_ERROR_CHECK(max7219_set_brightness(&dev, 12));
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//return dev;
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display = dev;
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ESP_LOGI(TAG, "initializing display - done");
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}
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void display_ShowWelcomeMsg(){
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//-----------------------------------
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//------- display welcome msg -------
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//-----------------------------------
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//display welcome message on two 7 segment displays
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//show name and date
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ESP_LOGI(TAG, "showing startup message...");
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max7219_clear(&display);
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max7219_draw_text_7seg(&display, 0, "CUTTER 20.08.2022");
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// 1234567812 34 5678
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vTaskDelay(pdMS_TO_TICKS(700));
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//scroll "hello" over 2 displays
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for (int offset = 0; offset < 23; offset++) {
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max7219_clear(&display);
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char hello[40] = " HELL0 ";
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max7219_draw_text_7seg(&display, 0, hello + (22 - offset) );
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vTaskDelay(pdMS_TO_TICKS(50));
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}
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}
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void display1_showString(const char * buf){
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max7219_draw_text_7seg(&display, 0, buf);
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}
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void display2_showString(const char * buf){
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max7219_draw_text_7seg(&display, 8, buf);
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}
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void display_showString(uint8_t pos, const char * buf){
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max7219_draw_text_7seg(&display, pos, buf);
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}
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// //---------------------------
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// //--------- display ---------
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// //---------------------------
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// //-- show current position on display1 ---
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// //sprintf(buf_tmp, "%06.1f cm", (float)lengthNow/10); //cm
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// sprintf(buf_tmp, "1ST %5.4f", (float)lengthNow/1000); //m
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// // 123456789
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// //limit length to 8 digits + decimal point (drop decimal places when it does not fit)
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// sprintf(buf_disp1, "%.9s", buf_tmp);
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//
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// //--- show target length on display2 ---
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// //sprintf(buf_disp2, "%06.1f cm", (float)lengthTarget/10); //cm
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// sprintf(buf_disp2, "S0LL%5.3f", (float)lengthTarget/1000); //m
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// // 1234 5678
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//
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// //TODO: blink disp2 when set button pressed
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// //TODO: blink disp2 when preset button pressed (exept manual mode)
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// //TODO: write "MAN CTL" to disp2 when in manual mode
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// //TODO: display or blink "REACHED" when reached state and start pressed
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//
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// //--- write to display ---
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// //max7219_clear(&display); //results in flickering display if same value anyways
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// max7219_draw_text_7seg(&display, 0, buf_disp1);
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// max7219_draw_text_7seg(&display, 8, buf_disp2);
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//
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//
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//
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