dejvino/lilybook
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Proof of concept DONE: txt loaded from SD, printed on display.

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This commit is contained in:
dejvino 2020-01-29 22:50:57 +01:00
parent 6edb8a56d9
commit 6ff92c6570
3 changed files with 140 additions and 12 deletions
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48
main/main.cpp
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@ -16,9 +16,12 @@
#include "spi_master_lobo.h"
#include "img_hacking.c"
#include "EPD.h"
#include "storage.h"
#define APP_VERSION "0.1"
static const char *TAG = "main";
static struct tm* tm_info;
static char tmp_buff[128];
static time_t time_now, time_last = 0;
@ -88,10 +91,15 @@ void fs_init()
vfs_spiffs_register();
if (spiffs_is_mounted) {
ESP_LOGI(tag, "File system mounted.");
}
else {
} else {
ESP_LOGE(tag, "Error mounting file system.");
}
if (storage_init() == 0) {
ESP_LOGI(tag, "SD card mounted.");
} else {
ESP_LOGE(tag, "Error mounting SD card.");
}
}
extern "C" void app_main()
@ -103,33 +111,49 @@ extern "C" void app_main()
printf("\n LilyBook v%s\n\n", APP_VERSION);
fs_init();
display_connect();
EPD_DisplayClearFull();
fs_init();
printf("==== START ====\r\n\n");
FILE* f = fopen("/sdcard/book.txt", "r");
_gs = 1;
uint32_t tstart;
int pass = 0;
int f = DEFAULT_FONT;
while (1) {
EPD_DisplayClearPart();
int font = DEFAULT_FONT;
while (1) {
EPD_fillScreen(_bg);
_fg = 15;
_bg = 0;
EPD_setFont(f++ % USER_FONT, NULL);
EPD_print("Welcome to LilyBook", 10, 10);
EPD_setFont(font++ % USER_FONT, NULL);
char text[128];
if (f == NULL) {
ESP_LOGE(TAG, "Failed to open file for reading");
sprintf(text, "Could not open SD card.");
f = fopen("/sdcard/book.txt", "r");
} else {
if (fgets(text, sizeof(text), f) == NULL) {
ESP_LOGI(TAG, "End of file, closing.");
fclose(f);
f = NULL;
} else {
ESP_LOGI(TAG, "Read content: %s", text);
}
}
text_wrap = 1;
EPD_print(text, 10, 10);
EPD_UpdateScreen();
EPD_wait(5000);
EPD_PowerOff();
EPD_wait(8000);
}
}

102
main/storage.cpp Normal file
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@ -0,0 +1,102 @@
#include <stdio.h>
#include <string.h>
#include <sys/unistd.h>
#include <sys/stat.h>
#include "esp_err.h"
#include "esp_log.h"
#include "esp_vfs_fat.h"
#include "driver/sdmmc_host.h"
#include "driver/sdspi_host.h"
#include "sdmmc_cmd.h"
#include "storage.h"
static const char *TAG = "storage";
// This example can use SDMMC and SPI peripherals to communicate with SD card.
// By default, SDMMC peripheral is used.
// To enable SPI mode, uncomment the following line:
//#define USE_SPI_MODE
// When testing SD and SPI modes, keep in mind that once the card has been
// initialized in SPI mode, it can not be reinitialized in SD mode without
// toggling power to the card.
#ifdef USE_SPI_MODE
// Pin mapping when using SPI mode.
// With this mapping, SD card can be used both in SPI and 1-line SD mode.
// Note that a pull-up on CS line is required in SD mode.
#define PIN_NUM_MISO ((gpio_num_t)2)
#define PIN_NUM_MOSI ((gpio_num_t)15)
#define PIN_NUM_CLK ((gpio_num_t)14)
#define PIN_NUM_CS ((gpio_num_t)13)
#endif //USE_SPI_MODE
int storage_init()
{
#ifndef USE_SPI_MODE
ESP_LOGI(TAG, "Using SDMMC peripheral");
sdmmc_host_t host = SDMMC_HOST_DEFAULT();
// This initializes the slot without card detect (CD) and write protect (WP) signals.
// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
// To use 1-line SD mode, uncomment the following line:
slot_config.width = 1;
// GPIOs 15, 2, 4, 12, 13 should have external 10k pull-ups.
// Internal pull-ups are not sufficient. However, enabling internal pull-ups
// does make a difference some boards, so we do that here.
gpio_set_pull_mode((gpio_num_t)15, GPIO_PULLUP_ONLY); // CMD, needed in 4- and 1- line modes
gpio_set_pull_mode((gpio_num_t)2, GPIO_PULLUP_ONLY); // D0, needed in 4- and 1-line modes
//gpio_set_pull_mode((gpio_num_t)4, GPIO_PULLUP_ONLY); // D1, needed in 4-line mode only
//gpio_set_pull_mode((gpio_num_t)12, GPIO_PULLUP_ONLY); // D2, needed in 4-line mode only
gpio_set_pull_mode((gpio_num_t)13, GPIO_PULLUP_ONLY); // D3, needed in 4- and 1-line modes
#else
ESP_LOGI(TAG, "Using SPI peripheral");
sdmmc_host_t host = SDSPI_HOST_DEFAULT();
sdspi_slot_config_t slot_config = SDSPI_SLOT_CONFIG_DEFAULT();
slot_config.gpio_miso = PIN_NUM_MISO;
slot_config.gpio_mosi = PIN_NUM_MOSI;
slot_config.gpio_sck = PIN_NUM_CLK;
slot_config.gpio_cs = PIN_NUM_CS;
// This initializes the slot without card detect (CD) and write protect (WP) signals.
// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
#endif //USE_SPI_MODE
// Options for mounting the filesystem.
// If format_if_mount_failed is set to true, SD card will be partitioned and
// formatted in case when mounting fails.
esp_vfs_fat_sdmmc_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 5,
.allocation_unit_size = 16 * 1024
};
// Use settings defined above to initialize SD card and mount FAT filesystem.
// Note: esp_vfs_fat_sdmmc_mount is an all-in-one convenience function.
// Please check its source code and implement error recovery when developing
// production applications.
sdmmc_card_t* card;
esp_err_t ret = esp_vfs_fat_sdmmc_mount("/sdcard", &host, &slot_config, &mount_config, &card);
if (ret != ESP_OK) {
if (ret == ESP_FAIL) {
ESP_LOGE(TAG, "Failed to mount filesystem. "
"If you want the card to be formatted, set format_if_mount_failed = true.");
} else {
ESP_LOGE(TAG, "Failed to initialize the card (%s). "
"Make sure SD card lines have pull-up resistors in place.", esp_err_to_name(ret));
}
return -1;
}
// Card has been initialized, print its properties
sdmmc_card_print_info(stdout, card);
return 0;
}

2
main/storage.h Normal file
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@ -0,0 +1,2 @@
int storage_init();