267 lines
8.4 KiB
C
267 lines
8.4 KiB
C
#include <stdio.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_timer.h"
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#include "esp_lcd_panel_io_i80_hub75.h"
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#include "esp_lcd_panel_ops.h"
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#include "driver/gpio.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_rom_sys.h"
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#include "hal/ledc_hal.h"
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#include "driver/ledc.h"
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#include "soc/rtc_cntl_reg.h"
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#include "soc/sens_reg.h"
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#include "soc/rtc_periph.h"
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#include "driver/rtc_io.h"
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#include "ulp_riscv.h"
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#include "ulp_main.h"
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static const char *TAG = "led matrix";
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#define HUB75_CLOCK_HZ (10 * 1000 * 1000)
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#define HUB75_MAX_SCAN_TIMES (8) /* 扫描次数是8次，也就是每一行会被扫8次，用于全彩显示 */
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#define HUB75_MAX_SCAN_LINE (8) /* 最多扫描行 */
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#define HUB75_MAX_TRANSFER_DATA_NUM (128) /* 最多发送128个uint16数据 */
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#define HUB75_MAX_TRANSFER_BUTES (HUB75_MAX_TRANSFER_DATA_NUM * 2)
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#define HUB75_WIDTH (64)
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#define HUB75_HEIGHT (32)
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#define HUB75_LINE_ADDR_A_PIN_NUM 33
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#define HUB75_LINE_ADDR_B_PIN_NUM 34
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#define HUB75_LINE_ADDR_C_PIN_NUM 35
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#define HUB75_LINE_ADDR_D_PIN_NUM 36
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#define HUB75_LAT_PIN_NUM 8
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#define HUB75_OE_PIN_NUM 21
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#define HUB75_CLK_PIN_NUM 7
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#define HUB75_OE_CAPTRUE_PIN_NUM 18
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#define HUB75_OE_CAPTRUE__RTC_PIN_NUM GPIO_NUM_18
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#define HUB75_LINE_ADDR_A_RTC_PIN_NUM GPIO_NUM_16
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#define HUB75_LINE_ADDR_B_RTC_PIN_NUM GPIO_NUM_15
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#define HUB75_LINE_ADDR_C_RTC_PIN_NUM GPIO_NUM_14
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#define HUB75_LINE_ADDR_D_RTC_PIN_NUM GPIO_NUM_13
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#define HUB75_G0 1
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#define HUB75_R0 2
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#define HUB75_B0 3
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#define HUB75_G1 4
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#define HUB75_R1 5
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#define HUB75_B1 6
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#define HUB75_G2 37
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#define HUB75_R2 38
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#define HUB75_B2 39
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#define HUB75_G3 40
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#define HUB75_R3 41
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#define HUB75_B3 42
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#define PSRAM_DATA_ALIGNMENT 64
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typedef unsigned char uint8_t;
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typedef unsigned short int uint16_t;
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esp_lcd_i80_hub75_bus_handle_t i80_bus = NULL;
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esp_lcd_panel_io_handle_t io_handle = NULL;
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static void led_matrix_i80_hub75_bus_init(void)
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{
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/* 8080总线配置 */
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ESP_LOGI(TAG, "Initialize Intel 8080 bus");
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esp_lcd_i80_hub75_bus_config_t bus_config = {
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.clk_src = HUB75_CLK_PIN_NUM,
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.wr_gpio_num = HUB75_CLK_PIN_NUM,
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.data_gpio_nums = {
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HUB75_R0,
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HUB75_G0,
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HUB75_B0,
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HUB75_R1,
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HUB75_G1,
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HUB75_B1,
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HUB75_R2,
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HUB75_G2,
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HUB75_B2,
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HUB75_R3,
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HUB75_G3,
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HUB75_B3,
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-1,
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-1,
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-1,
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-1,
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},
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.bus_width = 16,
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.max_transfer_bytes = HUB75_MAX_TRANSFER_BUTES, /* 每次发一行 */
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.max_scan_line = HUB75_MAX_SCAN_LINE,
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.max_scan_times = HUB75_MAX_SCAN_TIMES,
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.height = HUB75_HEIGHT,
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.width = HUB75_WIDTH,
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.psram_trans_align = PSRAM_DATA_ALIGNMENT,
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.sram_trans_align = 4,
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};
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ESP_ERROR_CHECK(esp_lcd_new_i80_hub75_bus(&bus_config, &i80_bus));
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/* 8080IO设备申请 */
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esp_lcd_panel_io_i80_hub75_config_t io_config = {
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.cs_gpio_num = -1,
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.pclk_hz = HUB75_CLOCK_HZ,
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.trans_queue_depth = 10,
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.flags = {
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.pclk_idle_low = 1,
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},
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.on_color_trans_done = NULL,
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.user_ctx = NULL,
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.lcd_cmd_bits = 0,
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.lcd_param_bits = 0,
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};
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_i80_hub75(i80_bus, &io_config, &io_handle));
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}
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#define LEDC_MODE LEDC_LOW_SPEED_MODE
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#define LEDC_TIMER LEDC_TIMER_0
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#define LEDC_DUTY_RES LEDC_TIMER_11_BIT
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#define LEDC_FREQUENCY (60 * HUB75_MAX_SCAN_TIMES * HUB75_MAX_SCAN_LINE)
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#define LEDC_DUTY_OE (1000) /* 先低后高，前面有效，控制亮度 */
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#define LEDC_DUTY_LAT (2048 - 5) /* 高电平锁存 */
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static void IRAM_ATTR ledc_timer_ovf_isr(void *arg);
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extern esp_err_t ledc_set_timer_ovf_intr(ledc_mode_t speed_mode, ledc_channel_t channel, int enbale);
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extern void ledc_clear_timer_ovf_intr_status(ledc_timer_t timer_num);
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static ledc_isr_handle_t s_ledc_time_isr_handle = NULL;
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static esp_err_t led_matrix_oe_lat_ledc_init(void)
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{
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ESP_LOGI(TAG, "led_matrix_oe_lat_ledc_init");
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ledc_timer_config_t ledc_timer = {
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.speed_mode = LEDC_MODE,
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.timer_num = LEDC_TIMER,
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.duty_resolution = LEDC_DUTY_RES,
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.freq_hz = LEDC_FREQUENCY,
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.clk_cfg = LEDC_AUTO_CLK};
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ESP_ERROR_CHECK(ledc_timer_config(&ledc_timer));
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ledc_channel_config_t ledc_channel_oe = {
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.speed_mode = LEDC_MODE,
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.channel = LEDC_CHANNEL_0,
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.timer_sel = LEDC_TIMER,
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.intr_type = LEDC_INTR_DISABLE,
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.gpio_num = HUB75_OE_PIN_NUM,
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.duty = LEDC_DUTY_OE,
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.flags.output_invert = 1,
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.hpoint = 0};
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ledc_channel_config_t ledc_channel_lat = {
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.speed_mode = LEDC_MODE,
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.channel = LEDC_CHANNEL_1,
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.timer_sel = LEDC_TIMER,
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.intr_type = LEDC_INTR_DISABLE,
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.gpio_num = HUB75_LAT_PIN_NUM,
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.duty = LEDC_DUTY_LAT,
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.flags.output_invert = 1,
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.hpoint = 0};
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ESP_ERROR_CHECK(ledc_channel_config(&ledc_channel_oe));
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ESP_ERROR_CHECK(ledc_channel_config(&ledc_channel_lat));
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/* 中断配置 */
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ledc_set_timer_ovf_intr(LEDC_MODE, LEDC_TIMER, false);
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int isr_flags = ESP_INTR_FLAG_LEVEL2;
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int ret = ledc_isr_register(ledc_timer_ovf_isr, i80_bus, isr_flags, &s_ledc_time_isr_handle);
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ESP_GOTO_ON_ERROR(ret, err, TAG, "install interrupt failed");
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ledc_set_timer_ovf_intr(LEDC_MODE, LEDC_TIMER, true);
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return ESP_OK;
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err:
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return ESP_FAIL;
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}
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static int times = 0;
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static int line = 0; /* 本次扫描行，32行16扫，一次显示两行 */
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static void IRAM_ATTR ledc_timer_ovf_isr(void *arg)
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{
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ledc_clear_timer_ovf_intr_status(LEDC_TIMER_0);
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line ++;
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if (line == HUB75_MAX_SCAN_LINE)
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{
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line = 0;
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times ++;
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if (times == HUB75_MAX_SCAN_TIMES)
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times = 0;
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}
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/* ULP处理行地址 */
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ulp_line = line;
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// if (ulp_flag != 0) ESP_LOGE(TAG, "ULP not deal line addr");
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ulp_flag = 1;
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hub75_send_line(io_handle, times, line);
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}
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extern const uint8_t ulp_main_bin_start[] asm("_binary_ulp_main_bin_start");
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extern const uint8_t ulp_main_bin_end[] asm("_binary_ulp_main_bin_end");
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static void led_matrix_ulp_risc_init(void)
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{
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ESP_LOGI(TAG, "led_matrix_ulp_risc_init");
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rtc_gpio_init(HUB75_OE_CAPTRUE__RTC_PIN_NUM);
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rtc_gpio_set_direction(HUB75_OE_CAPTRUE__RTC_PIN_NUM, RTC_GPIO_MODE_INPUT_ONLY);
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rtc_gpio_pulldown_dis(HUB75_OE_CAPTRUE__RTC_PIN_NUM);
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rtc_gpio_pullup_dis(HUB75_OE_CAPTRUE__RTC_PIN_NUM);
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rtc_gpio_hold_en(HUB75_OE_CAPTRUE__RTC_PIN_NUM);
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rtc_gpio_init(HUB75_LINE_ADDR_A_RTC_PIN_NUM);
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rtc_gpio_set_direction(HUB75_LINE_ADDR_A_RTC_PIN_NUM, RTC_GPIO_MODE_OUTPUT_ONLY);
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rtc_gpio_init(HUB75_LINE_ADDR_B_RTC_PIN_NUM);
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rtc_gpio_set_direction(HUB75_LINE_ADDR_B_RTC_PIN_NUM, RTC_GPIO_MODE_OUTPUT_ONLY);
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rtc_gpio_init(HUB75_LINE_ADDR_C_RTC_PIN_NUM);
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rtc_gpio_set_direction(HUB75_LINE_ADDR_C_RTC_PIN_NUM, RTC_GPIO_MODE_OUTPUT_ONLY);
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rtc_gpio_init(HUB75_LINE_ADDR_D_RTC_PIN_NUM);
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rtc_gpio_set_direction(HUB75_LINE_ADDR_D_RTC_PIN_NUM, RTC_GPIO_MODE_OUTPUT_ONLY);
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esp_err_t err = ulp_riscv_load_binary(ulp_main_bin_start, (ulp_main_bin_end - ulp_main_bin_start));
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ESP_ERROR_CHECK(err);
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ulp_set_wakeup_period(0, 20000);
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/* Start the program */
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err = ulp_riscv_run();
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ESP_ERROR_CHECK(err);
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}
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void led_matrix_init(void)
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{
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ESP_LOGI(TAG, "led_matrix_init");
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led_matrix_i80_hub75_bus_init();
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led_matrix_oe_lat_ledc_init();
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led_matrix_ulp_risc_init();
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}
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/* 设置亮度，规定可调范围0-1800 */
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int led_matrix_set_brightness(int brightness)
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{
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if (brightness < 0 || brightness > 1800)
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{
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ESP_LOGE(TAG, "Invalid brightness value(0-1800): %d", brightness);
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return -1;
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}
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ESP_ERROR_CHECK(ledc_set_duty(LEDC_MODE, LEDC_CHANNEL_0, brightness));
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ESP_ERROR_CHECK(ledc_update_duty(LEDC_MODE, LEDC_CHANNEL_0));
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return 0;
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}
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/* 画点 */
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int led_matrix_draw_point(int x, int y, uint8_t color)
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{
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return hub75_draw_point(io_handle, x, y, color);
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}
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/* 填充区域 */
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void led_matrix_fill_rectangle(int x0, int y0, int x1, int y1, void *color)
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{
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hub75_fill_rectangle(io_handle, x0, y0, x1, y1, color);
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} |