Merge pull request #186 from elmo128/SDspi_update

SPI support for SD card access, display for esp32cam, minor changes.

README.md

@@ -90,12 +90,12 @@ After programming, you will only need to setup your Wifi and BTC address.
 1. Create a file named "config.json" in your card's root, containing the the following structure. Adjust the settings to your needs:  
 {  
   "SSID": "myWifiSSID",  
-  "PW": "myWifiPassword",  
+  "WifiPW": "myWifiPassword",  
   "PoolUrl": "public-pool.io",  
   "PoolPort": 21496,  
   "BtcWallet": "walletID",  
   "Timezone": 2,  
-  "saveStats": false  
+  "SaveStats": false  
 }
 1. Insert the SD card.
 1. Hold down the "reset configurations" button as described below to reset the configurations and/or boot without settings in your nvmemory.

lib/TFT_eSPI/User_Setup_Select.h

@@ -149,6 +149,9 @@
 #ifdef NERMINER_S3_DONGLE
 #include <User_Setups/Setup209_LilyGo_T_Dongle_S3.h>      // For the LilyGo T-Dongle S3 based ESP32 with ST7735 80 x 160 TFT
 #endif
+#ifdef ESP32_CAM
+#include <User_Setups/Setup212_ESP32Cam_DongleDisplay.h>      // For the LilyGo T-Dongle S3 based ESP32 with ST7735 80 x 160 TFT
+#endif
 //#include <User_Setups/Setup301_BW16_ST7735.h>            // Setup file for Bw16-based boards with ST7735 160 x 80 TFT
 
 //#include <User_Setups/SetupX_Template.h>     // Template file for a setup

lib/TFT_eSPI/User_Setups/Setup212_ESP32Cam_DongleDisplay.h

@@ -0,0 +1,56 @@
+// Config for esp32cam, using dongledriver w ESP32 and ST7735 80 x 160 display
+#define USER_SETUP_ID 212
+
+#define ST7735_DRIVER     // Configure all registers
+
+#define TFT_WIDTH  80
+#define TFT_HEIGHT 160
+
+// #define ST7735_INITB
+// #define ST7735_GREENTAB
+// #define ST7735_GREENTAB2
+// #define ST7735_GREENTAB3
+// #define ST7735_GREENTAB128    // For 128 x 128 display
+#define ST7735_GREENTAB160x80 // For 160 x 80 display (BGR, inverted, 26 offset)
+// #define ST7735_REDTAB
+//#define ST7735_BLACKTAB
+// #define ST7735_REDTAB160x80   // For 160 x 80 display with 24 pixel offset
+
+//#define TFT_RGB_ORDER TFT_RGB  // Colour order Red-Green-Blue
+#define TFT_RGB_ORDER TFT_BGR  // Colour order Blue-Green-Red
+
+//#define TFT_INVERSION_ON
+//#define TFT_INVERSION_OFF
+
+// Generic ESP32 setup
+#define TFT_MISO 2
+#define TFT_MOSI 15
+#define TFT_SCLK 14
+#define TFT_CS   12
+#define TFT_DC   0
+#define TFT_RST  22  // Connect reset to ensure display initialises (not really required).
+
+#if (TFT_MISO == 16) || (TFT_MOSI == 16)|| (TFT_SCLK == 16)|| (TFT_CS == 16)|| (TFT_DC == 16)|| (TFT_RST == 16)
+#warning: Using GPIO16 for display might crash on initializing the display!
+#endif
+
+#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
+#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
+#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
+#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
+#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:.
+#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
+//#define LOAD_FONT8N // Font 8. Alternative to Font 8 above, slightly narrower, so 3 digits fit a 160 pixel TFT
+#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
+
+#define SMOOTH_FONT
+
+
+#define SPI_FREQUENCY  27000000
+//#define SPI_FREQUENCY  40000000
+
+#define SPI_READ_FREQUENCY  20000000
+
+//#define SPI_TOUCH_FREQUENCY  2500000
+
+// #define SUPPORT_TRANSACTIONS

platformio.ini

@@ -12,6 +12,8 @@
 globallib_dir = lib
 default_envs = esp32cam, ESP32-2432S028R, NerminerV2, ESP32-devKitv1, NerminerV2-S3-DONGLE, NerminerV2-S3-AMOLED, NerminerV2-T-QT, NerdminerV2-T-Display_V1, ESP32-2432S028R
 
+;--------------------------------------------------------------------
+
 [env:NerminerV2]
 platform = espressif32
 board = esp32-s3-devkitc-1
@@ -38,11 +40,13 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 	;https://github.com/golden-guy/Arduino_wolfssl.git#v5.5.4
 
+;--------------------------------------------------------------------
+
 [env:ESP32-devKitv1]
 platform = espressif32
 board = esp32dev
@@ -62,10 +66,12 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 
+;--------------------------------------------------------------------
+
 [env:TTGO-T-Display]
 platform = espressif32
 board = esp32dev ;esp-wrover-kit
@@ -85,11 +91,13 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 	;https://github.com/golden-guy/Arduino_wolfssl.git#v5.5.4
 
+;--------------------------------------------------------------------
+
 [env:NerminerV2-S3-AMOLED]
 platform = espressif32
 board = lilygo-t-amoled
@@ -102,11 +110,13 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 	https://github.com/golden-guy/Arduino_wolfssl.git#v5.5.4
 
+;--------------------------------------------------------------------
+
 [env:NerminerV2-S3-DONGLE]
 platform = espressif32
 board = esp32-s3-devkitc-1
@@ -119,12 +129,14 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 	https://github.com/FastLED/FastLED
 	;https://github.com/golden-guy/Arduino_wolfssl.git#v5.5.4
 
+;--------------------------------------------------------------------
+
 [env:esp32cam]
 platform = espressif32 ;(ESP32-D0WD-V3)
 board = esp32cam
@@ -136,17 +148,23 @@ monitor_filters =
 monitor_speed = 115200
 upload_speed = 921600
 board_build.partitions = huge_app.csv
+board_build.arduino.memory_type = dio_qspi
 build_flags = 
 	-D ESP32_CAM
+	-D BOARD_HAS_PSRAM
 	-D MONITOR_SPEED=${this.monitor_speed}
+	;-D DEBUG_MINING
+	;-D DEBUG_MEMORY
 lib_deps = 
-	;https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
+	https://github.com/takkaO/OpenFontRender
 lib_ignore =
-	TFT_eSPI
+	;TFT_eSPI
+
+;--------------------------------------------------------------------
 
 [env:NerminerV2-T-QT]
 platform = espressif32
@@ -167,10 +185,12 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 
+;--------------------------------------------------------------------
+
 [env:ESP32-2432S028R]
 platform = espressif32
 board = esp32dev
@@ -208,12 +228,14 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	arduino-libraries/NTPClient
 	bodmer/TFT_eSPI @ ^2.5.31
 	https://github.com/achillhasler/TFT_eTouch
 
+;--------------------------------------------------------------------
+
 [env:NerdminerV2-T-Display_V1]
 platform = espressif32
 board = ttgo-lora32-v1
@@ -231,7 +253,6 @@ build_flags =
 lib_deps = 
 	https://github.com/takkaO/OpenFontRender
 	bblanchon/ArduinoJson@^6.21.2
-	https://github.com/tzapu/WiFiManager.git
+	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
 	mathertel/OneButton @ ^2.0.3
 	https://github.com/arduino-libraries/NTPClient
-

src/NerdMinerV2.ino.cpp

@@ -11,6 +11,7 @@
 #include "mining.h"
 #include "monitor.h"
 #include "drivers/displays/display.h"
+#include "drivers/storage/SDCard.h"
 
 //3 seconds WDT
 #define WDT_TIMEOUT 3
@@ -25,9 +26,10 @@
   OneButton button2(PIN_BUTTON_2);
 #endif
 
-
 extern monitor_data mMonitor;
 
+SDCard SDCrd = SDCard();
+
 /**********************⚡ GLOBAL Vars *******************************/
 
 unsigned long start = millis();

src/drivers/devices/esp32CAM.h

@@ -4,9 +4,16 @@
 #define PIN_BUTTON_1 0
 #define LED_PIN 33
 
-#define NO_DISPLAY
+#define DONGLE_DISPLAY // NO_DISPLAY
 
-// SDMMC interface: 1-bit mode (might cause issues):
+// example how to configure SD card.
+// if you would define everything, 
+// to select 1 bit mode, make sure SDMMC_D1-3 are undefined
+// to use spi mode, make sure all SDMMC_x pins are undefined
+
+/*
+// use SDMMC interface:
+// 1-bit mode (might cause issues):
 #define SDMMC_CLK 14
 #define SDMMC_CMD 15
 #define SDMMC_D0 2
@@ -14,5 +21,16 @@
 #define SDMMC_D1 4
 #define SDMMC_D2 12
 #define SDMMC_D3 13
+*/
+
+// use SPI interface
+// (default SPI unit provided by <SPI.h>)
+// setup SPI pins.
+#define SDSPI_CS    13
+// The following pins can be retreived from the TFT_eSPI lib, 
+// if a display that is using it is activated.
+#define SDSPI_CLK   14
+#define SDSPI_MOSI  15
+#define SDSPI_MISO  2
 
 #endif // _ESP32_CAM_H_

src/drivers/displays/dongleDisplayDriver.cpp

@@ -9,7 +9,10 @@
 #include "version.h"
 #include "monitor.h"
 #include "OpenFontRender.h"
+
+#ifdef USE_LED
 #include <FastLED.h>
+#endif
 
 #define WIDTH 160
 #define HEIGHT 80
@@ -26,6 +29,7 @@ OpenFontRender render;
 TFT_eSPI tft = TFT_eSPI();
 TFT_eSprite background = TFT_eSprite(&tft);
 
+#ifdef USE_LED
 #define MAX_BRIGHTNESS 16
 #define SLOW_FADE 1;
 #define FAST_FADE 4;
@@ -34,6 +38,7 @@ CRGB leds(0, 0, 0);
 int brightness = 0;
 int fadeDirection = 1;
 int fadeAmount = 0;
+#endif // USE_LED
 
 extern monitor_data mMonitor;
 
@@ -74,8 +79,10 @@ extern monitor_data mMonitor;
 
 void dongleDisplay_Init(void)
 {
+  #ifdef USE_LED
   FastLED.addLeds<APA102, LED_DI_PIN, LED_CI_PIN, BGR>(&leds, 1);
   FastLED.show();
+  #endif // USE_LED
 
   tft.init();
   tft.setRotation(3);

src/drivers/storage/SDCard.cpp

@@ -1,4 +1,3 @@
-
 #include <FS.h>
 #include <ArduinoJson.h>
 #include <WiFi.h>
@@ -9,41 +8,78 @@
 #include  "SDCard.h"
 
 #if defined (BUILD_SDMMC_1) || defined(BUILD_SDMMC_4)
-
 #include <SD_MMC.h>
+#elif defined (BUILD_SDSPI)
+#include <SD.h>
+#include <SPI.h>
+#endif // interface type
 
-SDCard::SDCard()
+#if defined (BUILD_SDMMC_1) || defined(BUILD_SDMMC_4) || defined (BUILD_SDSPI)
+
+/// @param int ID only relevant in SPI mode, if you want to set up a custom SPI unit. Ignored in SD bus mode.
+SDCard::SDCard(int ID):cardInitialized_(false),cardBusy_(false)
 {
 #if defined (BUILD_SDMMC_1) || defined(BUILD_SDMMC_4)
     iSD_ = &SD_MMC;
 #elif defined (BUILD_SDSPI)
-#error You chose to run the sd card in SPI mode. This is not implemented yet.
+    if(ID>=0)
-#endif 
+    {
+        ispi_ = new SPIClass(ID);
+        newInstance_ = true;
+    }
+    else
+    {
+        ispi_ = &SPI;
+        newInstance_ = false;
+    }
+    iSD_ = &SD;
+#endif // interface type
+    initSDcard();
 }
 
 SDCard::~SDCard()
 {
-    unmount();
+    iSD_->end();
+#ifdef BUILD_SDSPI
+    if(newInstance_) 
+    {
+        ispi_->end();
+        delete ispi_;
+    }
+#endif // BUILD_SDSPI
+    Serial.println("SDCard: Unmounted");  
 }
 
-void SDCard::SD2nvMemory(nvMemory* nvMem)
+/// @brief Check if the card is accessed right now.
+/// @return true if active
+bool SDCard::cardBusy()
 {
-    TSettings Settings;
+    return cardBusy_;
-    if (loadConfigFile(&Settings))
+}
+
+/// @brief Transfer settings from config file on a SD card to the device.
+/// @param nvMemory* where to save
+/// @param TSettings* passing a struct is required, to save memory
+void SDCard::SD2nvMemory(nvMemory* nvMem, TSettings* Settings)
+{
+    if (loadConfigFile(Settings))
     {
-        nvMem->saveConfig(&Settings);
+        nvMem->saveConfig(Settings);
-        WiFi.begin(Settings.WifiSSID, Settings.WifiPW);
+        WiFi.begin(Settings->WifiSSID, Settings->WifiPW);
         Serial.println("SDCard: Settings transfered to internal memory. Restarting now.");
         ESP.restart();
     }
 }
 
+/// @brief Retreives settings from a config file on a SD card.
+/// @param TSettings* Struct to update with new Settings
+/// @return true on success
 bool SDCard::loadConfigFile(TSettings* Settings)
 {
     // Load existing configuration file
     // Read configuration from FS json
 
-    if (initSDcard())
+    if (cardAvailable())
     {
         if (iSD_->exists(JSON_CONFIG_FILE))
         {
@@ -51,18 +87,19 @@ bool SDCard::loadConfigFile(TSettings* Settings)
             File configFile = iSD_->open(JSON_CONFIG_FILE, "r");
             if (configFile)
             {
+                cardBusy_ = true;
                 StaticJsonDocument<512> json;
                 DeserializationError error = deserializeJson(json, configFile);
                 configFile.close();
+                cardBusy_ = false;
                 Serial.println("SDCard: Loading config file");
-                serializeJsonPretty(json, Serial);
-                Serial.print('\n');
-                unmount();
                 if (!error)
                 {
-                    strcpy(Settings->WifiSSID, json[JSON_KEY_SSID] | Settings->WifiSSID);
+                    serializeJsonPretty(json, Serial);
-                    strcpy(Settings->WifiPW, json[JSON_KEY_PASW] | Settings->WifiPW);
+                    Serial.print('\n');
-                    strcpy(Settings->PoolAddress, json[JSON_KEY_POOLURL] | Settings->PoolAddress);
+                    Settings->WifiSSID = json[JSON_KEY_SSID] | Settings->WifiSSID;
+                    Settings->WifiPW = json[JSON_KEY_PASW] | Settings->WifiPW;
+                    Settings->PoolAddress = json[JSON_KEY_POOLURL] | Settings->PoolAddress;
                     strcpy(Settings->BtcWallet, json[JSON_KEY_WALLETID] | Settings->BtcWallet);
                     if (json.containsKey(JSON_KEY_POOLPORT))
                         Settings->PoolPort = json[JSON_KEY_POOLPORT].as<int>();
@@ -87,71 +124,72 @@ bool SDCard::loadConfigFile(TSettings* Settings)
         {
             Serial.println("SDCard: No config file available!");
         }
-        unmount();
     }
     return false;
 }
 
-void SDCard::unmount()
+/// @brief Check if a SD card is inserted.
+/// @return true if inserted.
+bool SDCard::cardAvailable()
 {
-    iSD_->end();
+    if (cardInitialized_)
-    Serial.println("SDCard: Unmounted");
-}
-
-bool SDCard::initSDcard()
-{
-    if (iSD_->cardType() != CARD_NONE)
-    {
-        Serial.println("SDCard: Already mounted.");
-        return true;
-    }
-    Serial.println("SDCard: Mounting card.");
-
-    bool cardInitialized = false;
-#if defined (BUILD_SDMMC_4)
-    if (iSD_->cardType() == CARD_NONE)
-    {
-        iSD_->setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0, SDMMC_D1, SDMMC_D2, SDMMC_D3);
-        Serial.println("SDCard: 4-Bit Mode.");
-        cardInitialized = iSD_->begin("/sd", false);
-    }
-#elif defined (BUILD_SDMMC_1)
-    #warning SDMMC : 1 - bit mode is not always working.If you experience issues, try other modes.
-        if (iSD_->cardType() == CARD_NONE)
-        {
-            iSD_->setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0);
-            Serial.println("SDCard: 1-Bit Mode.");
-            cardInitialized = iSD_->begin("/sd", true);
-        }
-#elif defined (BUILD_SDSPI)
-#error You chose to run the sd card in SPI mode. This is not implemented yet.
-#else
-    Serial.println("SDCard: interface not available.");
-    return false;
-#endif // dataPinsDefined
-    if (cardInitialized)
     {
         if (iSD_->cardType() != CARD_NONE)
         {
-            Serial.println("SDCard: Mounted.");
+            Serial.println("SDCard: Inserted.");
             return true;
         }
         else
         {
-            Serial.println("SDCard: Mounting failed.");
+            Serial.println("SDCard: Not inserted.");
-            iSD_->end();
         }
     }
+    else
+    {
+        Serial.println("SDCard: Interface not initialized.");
+    }
     return false;
 }
 
+/// @brief Init SD card interface. Normaly not required, as this is called by the constructor.
+/// @return  true on success
+bool SDCard::initSDcard()
+{
+    if (!cardAvailable())
+    {
+        Serial.println("SDCard: init SD card interface.");
+#if defined (BUILD_SDMMC_4)
+        iSD_->setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0, SDMMC_D1, SDMMC_D2, SDMMC_D3);
+        cardInitialized_ = iSD_->begin("/sd", false);
+        Serial.println("SDCard: 4-Bit Mode.");
+    }
+#elif defined (BUILD_SDMMC_1)
+#warning SDMMC : 1 - bit mode is not always working. If you experience issues, try other modes.
+        iSD_->setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0);
+        cardInitialized_ = iSD_->begin("/sd", true);
+        Serial.println("SDCard: 1-Bit Mode.");
+    }
+#elif defined (BUILD_SDSPI)
+        ispi_->begin(SDSPI_CLK, SDSPI_MISO, SDSPI_MOSI, SDSPI_CS);
+        cardInitialized_ = iSD_->begin(SDSPI_CS, *ispi_);
+        Serial.println("SDCard: SPI mode.");
+    }
+#else
+    Serial.println("SDCard: interface not defined.");
+    return false;
+#endif // dataPinsDefined
+    cardAvailable();
+    return cardInitialized_;
+}
+
 #else
 
-SDCard::SDCard() {}
+SDCard::SDCard(int ID) {}
 SDCard::~SDCard() {}
-void SDCard::SD2nvMemory(nvMemory* nvMem) {};
+void SDCard::SD2nvMemory(nvMemory* nvMem, TSettings* Settings) {};
 bool SDCard::loadConfigFile(TSettings* Settings) { return false; }
 bool SDCard::initSDcard() { return false; }
-void unmount() {}
+bool SDCard::cardAvailable() { return false; }
+bool SDCard::cardBusy() { return false; }
 
 #endif //BUILD_SDMMC

src/drivers/storage/SDCard.h

@@ -5,33 +5,66 @@
 #include "nvMemory.h"
 #include "..\devices\device.h"
 
+// configuration example and description in /devices/esp32cam.h
+
+// select interface and options according to provided pins
 #if defined (SDMMC_D0) && defined (SDMMC_D1) && defined (SDMMC_D2) && defined (SDMMC_D3)
-#define BUILD_SDMMC_4
+    #define BUILD_SDMMC_4
-#include <SD_MMC.h>
+    #undef BUILD_SDMMC_1
+    #undef BUILD_SDSPI
+    #include <SD_MMC.h>
+    #warning SD card support in 4-Bit mode enabled!
 #elif defined (SDMMC_D0) && !(defined (SDMMC_D1) && defined (SDMMC_D2) && defined (SDMMC_D3))
-#define BUILD_SDMMC_1
+    #define BUILD_SDMMC_1
-#include <SD_MMC.h>
+    #undef BUILD_SDMMC_4
-#else
+    #undef BUILD_SDSPI
-#warning SD card support disabled!
+    #include <SD_MMC.h>
+    #warning SD card support in 1-Bit mode enabled!
+#elif defined (SDSPI_CS)
+    #undef BUILD_SDMMC_1
+    #undef BUILD_SDMMC_4
+    #define BUILD_SDSPI
+
+    #include <SPI.h>
+    #include <SD.h>
+    #include "..\lib\TFT_eSPI\User_Setup_Select.h"
+
+    #ifndef NO_DISPLAY
+        #if !defined(SDSPI_CLK) && defined(TFT_CLK)
+            #define SDSPI_CLK TFT_CLK
+        #endif // SDSPI_CLK
+        #if !defined(SDSPI_MOSI) && defined(TFT_MOSI)
+            #define SDSPI_MOSI TFT_MOSI
+        #endif // SDSPI_MOSI
+        #if !defined(SDSPI_MISO) && defined(TFT_MISO)
+            #define SDSPI_MISO TFT_MISO
+        #endif // SDSPI_MISO
+    #elif !defined(SDSPI_CLK) || !defined(SDSPI_MOSI) || !defined(SDSPI_MISO)
+        #error: Please define SDSPI pins!
+    #endif // NO_DISPLAY
+    
+    #warning SD card support in SPI mode enabled!
 #endif
 
-// Handles the transfer of settings from sd card to nv memory (wifi credentials are handled by wifimanager)
 class SDCard
 {
 public:
-    SDCard();
+    SDCard(int ID=-1);
     ~SDCard();
-    void SD2nvMemory(nvMemory* nvMem);
+    void SD2nvMemory(nvMemory* nvMem, TSettings* Settings);
     bool loadConfigFile(TSettings* Settings);
+    bool cardAvailable();
+    bool cardBusy();
 private:
     bool initSDcard();
-    void unmount();
+    bool cardInitialized_;
-
+    bool cardBusy_;
 #if defined (BUILD_SDMMC_1) || defined(BUILD_SDMMC_4)
     fs::SDMMCFS* iSD_;
 #elif defined (BUILD_SDSPI)
-#error You chose to run the SD card in SPI mode. This is not implemented yet.
+    SPIClass* ispi_;
     fs::SDFS* iSD_;
+    bool newInstance_;
 #endif
 };
 

src/drivers/storage/nvMemory.cpp

@@ -9,10 +9,7 @@
 #include "..\devices\device.h"
 #include "storage.h"
 
-nvMemory::nvMemory()
+nvMemory::nvMemory() : Initialized_(false){};
-{
-    Initialized_ = false;
-}
 
 nvMemory::~nvMemory()
 {
@@ -20,6 +17,9 @@ nvMemory::~nvMemory()
         SPIFFS.end();
 };
 
+/// @brief Save settings to config file on SPIFFS
+/// @param TSettings* Settings to be saved.
+/// @return true on success
 bool nvMemory::saveConfig(TSettings* Settings)
 {
     if (init())
@@ -29,11 +29,11 @@ bool nvMemory::saveConfig(TSettings* Settings)
 
         // Create a JSON document
         StaticJsonDocument<512> json;
-        json[JSON_KEY_POOLURL] = Settings->PoolAddress;
+        json[JSON_SPIFFS_KEY_POOLURL] = Settings->PoolAddress;
-        json[JSON_KEY_POOLPORT] = Settings->PoolPort;
+        json[JSON_SPIFFS_KEY_POOLPORT] = Settings->PoolPort;
-        json[JSON_KEY_WALLETID] = Settings->BtcWallet;
+        json[JSON_SPIFFS_KEY_WALLETID] = Settings->BtcWallet;
-        json[JSON_KEY_TIMEZONE] = Settings->Timezone;
+        json[JSON_SPIFFS_KEY_TIMEZONE] = Settings->Timezone;
-        json[JSON_KEY_STATS2NV] = Settings->saveStats;
+        json[JSON_SPIFFS_KEY_STATS2NV] = Settings->saveStats;
 
         // Open config file
         File configFile = SPIFFS.open(JSON_CONFIG_FILE, "w");
@@ -60,6 +60,9 @@ bool nvMemory::saveConfig(TSettings* Settings)
     return false;
 }
 
+/// @brief Load settings from config file located in SPIFFS.
+/// @param TSettings* Struct to update with new settings.
+/// @return true on success
 bool nvMemory::loadConfig(TSettings* Settings)
 {
     // Uncomment if we need to format filesystem
@@ -84,14 +87,14 @@ bool nvMemory::loadConfig(TSettings* Settings)
                 Serial.print('\n');
                 if (!error)
                 {
-                    strcpy(Settings->PoolAddress, json[JSON_KEY_POOLURL] | Settings->PoolAddress);
+                    Settings->PoolAddress = json[JSON_SPIFFS_KEY_POOLURL] | Settings->PoolAddress;
-                    strcpy(Settings->BtcWallet, json[JSON_KEY_WALLETID] | Settings->BtcWallet);
+                    strcpy(Settings->BtcWallet, json[JSON_SPIFFS_KEY_WALLETID] | Settings->BtcWallet);
-                    if (json.containsKey(JSON_KEY_POOLPORT))
+                    if (json.containsKey(JSON_SPIFFS_KEY_POOLPORT))
-                        Settings->PoolPort = json[JSON_KEY_POOLPORT].as<int>();
+                        Settings->PoolPort = json[JSON_SPIFFS_KEY_POOLPORT].as<int>();
-                    if (json.containsKey(JSON_KEY_TIMEZONE))
+                    if (json.containsKey(JSON_SPIFFS_KEY_TIMEZONE))
-                        Settings->Timezone = json[JSON_KEY_TIMEZONE].as<int>();
+                        Settings->Timezone = json[JSON_SPIFFS_KEY_TIMEZONE].as<int>();
-                    if (json.containsKey(JSON_KEY_STATS2NV))
+                    if (json.containsKey(JSON_SPIFFS_KEY_STATS2NV))
-                        Settings->saveStats = json[JSON_KEY_STATS2NV].as<bool>();
+                        Settings->saveStats = json[JSON_SPIFFS_KEY_STATS2NV].as<bool>();
                     return true;
                 }
                 else
@@ -113,12 +116,16 @@ bool nvMemory::loadConfig(TSettings* Settings)
     return false;
 }
 
+/// @brief Delete config file from SPIFFS
+/// @return true on successs
 bool nvMemory::deleteConfig()
 {
     Serial.println("SPIFS: Erasing config file..");
     return SPIFFS.remove(JSON_CONFIG_FILE); //Borramos fichero
 }
 
+/// @brief Prepare and mount SPIFFS
+/// @return true on success
 bool nvMemory::init()
 {
     if (!Initialized_)

src/drivers/storage/nvMemory.h

@@ -21,9 +21,7 @@ private:
     bool Initialized_;
 };
 
-#ifdef NVMEM_SPIFFS
+#ifndef NVMEM_SPIFFS
-#define ESP_DRD_USE_SPIFFS true
-#else
 #error We need some kind of permanent storage implementation!
 #endif //NVMEM_TYPE
 

src/drivers/storage/storage.h

@@ -1,8 +1,11 @@
 #ifndef _STORAGE_H_
 #define _STORAGE_H_
 
-#include <inttypes.h>
+#include <Arduino.h>
 
+// config files
+
+// default settings
 #define DEFAULT_SSID		"NerdMinerAP"
 #define DEFAULT_WIFIPW		"MineYourCoins"
 #define DEFAULT_POOLURL		"public-pool.io"
@@ -11,24 +14,34 @@
 #define DEFAULT_TIMEZONE	2
 #define DEFAULT_SAVESTATS	false
 
-// JSON config file
+// JSON config files
-#define JSON_CONFIG_FILE "/config.json"
+#define JSON_CONFIG_FILE	"/config.json"
-#define JSON_KEY_SSID	"SSID"
+
-#define JSON_KEY_PASW	"PW"
+// JSON config file SD card (for user interaction, readme.md)
+#define JSON_KEY_SSID		"SSID"
+#define JSON_KEY_PASW		"WifiPW"
 #define JSON_KEY_POOLURL	"PoolUrl"
 #define JSON_KEY_WALLETID	"BtcWallet"
 #define JSON_KEY_POOLPORT	"PoolPort"
 #define JSON_KEY_TIMEZONE	"Timezone"
-#define JSON_KEY_STATS2NV	"saveStats"
+#define JSON_KEY_STATS2NV	"SaveStats"
 
+// JSON config file SPIFFS (different for backward compatibility with existing devices)
+#define JSON_SPIFFS_KEY_POOLURL		"poolString"
+#define JSON_SPIFFS_KEY_POOLPORT	"portNumber"
+#define JSON_SPIFFS_KEY_WALLETID	"btcString"
+#define JSON_SPIFFS_KEY_TIMEZONE	"gmtZone"
+#define JSON_SPIFFS_KEY_STATS2NV	"saveStatsToNVS"
+
+// settings
 struct TSettings
 {
-	char WifiSSID[80]{ DEFAULT_SSID };
+	String WifiSSID{ DEFAULT_SSID };
-	char WifiPW[80]{ DEFAULT_WIFIPW };
+	String WifiPW{ DEFAULT_WIFIPW };
-	char PoolAddress[80]{ DEFAULT_POOLURL };
+	String PoolAddress{ DEFAULT_POOLURL };
 	char BtcWallet[80]{ DEFAULT_WALLETID };
-	uint32_t PoolPort{ DEFAULT_POOLPORT };
+	int PoolPort{ DEFAULT_POOLPORT };
-	uint32_t Timezone{ DEFAULT_TIMEZONE };
+	int Timezone{ DEFAULT_TIMEZONE };
 	bool saveStats{ DEFAULT_SAVESTATS };
 };
 

src/mining.cpp

@@ -59,14 +59,14 @@ bool checkPoolConnection(void) {
   
   //Resolve first time pool DNS and save IP
   if(serverIP == IPAddress(1,1,1,1)) {
-    WiFi.hostByName(Settings.PoolAddress, serverIP);
+    WiFi.hostByName(Settings.PoolAddress.c_str(), serverIP);
     Serial.printf("Resolved DNS and save ip (first time) got: %s\n", serverIP.toString());
   }
 
   //Try connecting pool IP
   if (!client.connect(serverIP, Settings.PoolPort)) {
-    Serial.println("Imposible to connect to : " + String(Settings.PoolAddress));
+    Serial.println("Imposible to connect to : " + Settings.PoolAddress);
-    WiFi.hostByName(Settings.PoolAddress, serverIP);
+    WiFi.hostByName(Settings.PoolAddress.c_str(), serverIP);
     Serial.printf("Resolved DNS got: %s\n", serverIP.toString());
     vTaskDelay(1000 / portTICK_PERIOD_MS);
     return false;
@@ -116,7 +116,7 @@ void runStratumWorker(void *name) {
   Serial.printf("\n[WORKER] Started. Running %s on core %d\n", (char *)name, xPortGetCoreID());
 
   #ifdef DEBUG_MEMORY
-  Serial.printf("### [Total Heap / Free heap]: %d / %d \n", ESP.getHeapSize(), ESP.getFreeHeap());
+  Serial.printf("### [Total Heap / Free heap / Min free heap]: %d / %d / %d \n", ESP.getHeapSize(), ESP.getFreeHeap(), ESP.getMinFreeHeap());
   #endif
 
   // connect to pool
@@ -452,7 +452,7 @@ void runMonitor(void *name)
       }
 
       #ifdef DEBUG_MEMORY
-      Serial.printf("### [Total Heap / Free heap]: %d / %d \n", ESP.getHeapSize(), ESP.getFreeHeap());
+      Serial.printf("### [Total Heap / Free heap / Min free heap]: %d / %d / %d \n", ESP.getHeapSize(), ESP.getFreeHeap(), ESP.getMinFreeHeap());
       Serial.printf("### Max stack usage: %d\n", uxTaskGetStackHighWaterMark(NULL));
       #endif
 

src/wManager.cpp

@@ -1,6 +1,8 @@
+#define ESP_DRD_USE_SPIFFS true
 
 // Include Libraries
 //#include ".h"
+
 #include <WiFi.h>
 
 #include <WiFiManager.h>
@@ -25,6 +27,8 @@ extern monitor_data mMonitor;
 
 nvMemory nvMem;
 
+extern SDCard SDCrd;
+
 void saveConfigCallback()
 // Callback notifying us of the need to save configuration
 {
@@ -85,11 +89,10 @@ void init_WifiManager()
     if (!nvMem.loadConfig(&Settings))
     {
         //No config file on internal flash.
-        SDCard SDCrd;
         if (SDCrd.loadConfigFile(&Settings))
         {
             //Config file on SD card.
-            SDCrd.SD2nvMemory(&nvMem); // reboot on success.          
+            SDCrd.SD2nvMemory(&nvMem, &Settings); // reboot on success.          
         }
         else
         {
@@ -122,7 +125,7 @@ void init_WifiManager()
     // Custom elements
 
     // Text box (String) - 80 characters maximum
-    WiFiManagerParameter pool_text_box("Poolurl", "Pool url", Settings.PoolAddress, 80);
+    WiFiManagerParameter pool_text_box("Poolurl", "Pool url", Settings.PoolAddress.c_str(), 80);
 
     // Need to convert numerical input to string to display the default value.
     char convertedValue[6];
@@ -168,7 +171,7 @@ void init_WifiManager()
         {
             //Could be break forced after edditing, so save new config
             Serial.println("failed to connect and hit timeout");
-            strncpy(Settings.PoolAddress, pool_text_box.getValue(), sizeof(Settings.PoolAddress));
+            Settings.PoolAddress = pool_text_box.getValue();
             Settings.PoolPort = atoi(port_text_box_num.getValue());
             strncpy(Settings.BtcWallet, addr_text_box.getValue(), sizeof(Settings.BtcWallet));
             Settings.Timezone = atoi(time_text_box_num.getValue());
@@ -187,7 +190,7 @@ void init_WifiManager()
         //Tratamos de conectar con la configuración inicial ya almacenada
         mMonitor.NerdStatus = NM_Connecting;
         wm.setCaptivePortalEnable(false); // disable captive portal redirection
-        if (!wm.autoConnect(Settings.WifiSSID, Settings.WifiPW))
+        if (!wm.autoConnect(Settings.WifiSSID.c_str(), Settings.WifiPW.c_str()))
         {
             Serial.println("Failed to connect and hit timeout");
             //delay(3000);
@@ -210,7 +213,8 @@ void init_WifiManager()
         // Lets deal with the user config values
 
         // Copy the string value
-        strncpy(Settings.PoolAddress, pool_text_box.getValue(), sizeof(Settings.PoolAddress));
+        Settings.PoolAddress = pool_text_box.getValue();
+        //strncpy(Settings.PoolAddress, pool_text_box.getValue(), sizeof(Settings.PoolAddress));
         Serial.print("PoolString: ");
         Serial.println(Settings.PoolAddress);