Merge branch 'master' into master

Author: TheKitty

Adafruit_AD8495_Guide/.uno.test.only renamed to Adafruit_AD8495_Guide/AD8495_Temperature/.uno.test.only

@@ -0,0 +1,295 @@
+/*
+  ESP32BootROM - part of the Firmware Updater for the
+  Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
+
+  Copyright (c) 2018 Arduino SA. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "ESP32BootROM.h"
+
+extern ESP32BootROMClass ESP32BootROM;
+
+//#define DEBUG 1
+
+ESP32BootROMClass::ESP32BootROMClass(HardwareSerial& serial, int gpio0Pin, int resetnPin) :
+  _serial(&serial),
+  _gpio0Pin(gpio0Pin),
+  _resetnPin(resetnPin)
+{
+
+}
+
+int ESP32BootROMClass::begin(unsigned long baudrate)
+{
+  _serial->begin(115200);
+
+  pinMode(_gpio0Pin, OUTPUT);
+  pinMode(_resetnPin, OUTPUT);
+
+  digitalWrite(_gpio0Pin, LOW);
+
+  digitalWrite(_resetnPin, LOW);
+  delay(10);
+  digitalWrite(_resetnPin, HIGH);
+  delay(100);
+
+  int synced = 0;
+
+  for (int retries = 0; !synced && (retries < 5); retries++) {
+    synced = sync();
+  }
+
+  if (!synced) {
+    return 0;
+  }
+
+#if defined(ARDUINO_SAMD_MKRVIDOR4000) || defined(ARDUINO_AVR_UNO_WIFI_REV2)
+  (void)baudrate;
+#else
+  if (baudrate != 115200) {
+    if (!changeBaudrate(baudrate)) {
+      return 0;
+    }
+
+    delay(100);
+
+    _serial->end();
+    _serial->begin(baudrate);
+  }
+#endif
+
+  if (!spiAttach()) {
+    return 0;
+  }
+
+  return 1;
+}
+
+void ESP32BootROMClass::end() {
+  _serial->end();
+}
+
+int ESP32BootROMClass::sync()
+{
+  const uint8_t data[] = {
+    0x07, 0x07, 0x12, 0x20,
+    0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55
+  };
+
+  command(0x08, data, sizeof(data));
+
+  int results[8];
+
+  for (int i = 0; i < 8; i++) {
+    results[i] = response(0x08, 100);
+  }
+
+  return (results[0] == 0);
+}
+
+int ESP32BootROMClass::changeBaudrate(unsigned long baudrate)
+{
+  const uint32_t data[2] = {
+    baudrate,
+    0
+  };
+
+  command(0x0f, data, sizeof(data));
+
+  return (response(0x0f, 3000) == 0);
+}
+
+int ESP32BootROMClass::spiAttach()
+{
+  const uint8_t data[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+
+  command(0x0d, data, sizeof(data));
+
+  return (response(0x0d, 3000) == 0);
+}
+
+int ESP32BootROMClass::beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize) {
+  const uint32_t data[4] = {
+    size,
+    size / chunkSize,
+    chunkSize,
+    offset
+  };
+
+  command(0x02, data, sizeof(data));
+
+  _flashSequenceNumber = 0;
+  _chunkSize = chunkSize;
+
+  return (response(0x02, 120000) == 0);
+}
+
+int ESP32BootROMClass::dataFlash(const void* data, uint32_t length)
+{
+  uint32_t cmdData[4 + (_chunkSize / 4)];
+
+  cmdData[0] = length;
+  cmdData[1] = _flashSequenceNumber++;
+  cmdData[2] = 0;
+  cmdData[3] = 0;
+
+  memcpy(&cmdData[4], data, length);
+
+  if (length < _chunkSize) {
+    memset(&cmdData[4 + (length / 4)], 0xff, _chunkSize - length);
+  }
+
+  command(0x03, cmdData, sizeof(cmdData));
+
+  return (response(0x03, 3000) == 0);
+}
+
+int ESP32BootROMClass::endFlash(uint32_t reboot) {
+  const uint32_t data[1] = {
+    reboot
+  };
+
+  command(0x04, data, sizeof(data));
+
+  return (response(0x04, 3000) == 0);
+}
+
+int ESP32BootROMClass::md5Flash(uint32_t offset, uint32_t size, uint8_t* result)
+{
+  const uint32_t data[4] = {
+    offset,
+    size,
+    0,
+    0
+  };
+
+  command(0x13, data, sizeof(data));
+
+  uint8_t asciiResult[32];
+
+  if (response(0x13, 3000, asciiResult) != 0) {
+    return 0;
+  }
+
+  char temp[3] = { 0, 0, 0 };
+
+  for (int i = 0; i < 16; i++) {
+    temp[0] = asciiResult[i * 2];
+    temp[1] = asciiResult[i * 2 + 1];
+
+    result[i] = strtoul(temp, NULL, 16);
+  }
+
+  return 1;
+}
+
+void ESP32BootROMClass::command(int opcode, const void* data, uint16_t length)
+{
+  uint32_t checksum = 0;
+
+  if (opcode == 0x03) {
+    checksum = 0xef; // seed
+
+    for (uint16_t i = 16; i < length; i++) {
+      checksum ^= ((const uint8_t*)data)[i];
+    }
+  }
+
+  _serial->write(0xc0);
+  _serial->write((uint8_t)0x00); // direction
+  _serial->write(opcode);
+  _serial->write((uint8_t*)&length, sizeof(length));
+  writeEscapedBytes((uint8_t*)&checksum, sizeof(checksum));
+  writeEscapedBytes((uint8_t*)data, length);
+  _serial->write(0xc0);
+#ifdef ARDUINO_SAMD_MKRVIDOR4000
+  // _serial->flush(); // doesn't work!
+#else
+  _serial->flush();
+#endif
+}
+
+int ESP32BootROMClass::response(int opcode, unsigned long timeout, void* body)
+{
+  uint8_t data[10 + 256];
+  uint16_t index = 0;
+
+  uint8_t responseLength = 4;
+
+  for (unsigned long start = millis(); (index < (uint16_t)(10 + responseLength)) && (millis() - start) < timeout;) {
+    if (_serial->available()) {
+      data[index] = _serial->read();
+
+      if (index == 3) {
+        responseLength = data[index];
+      }
+
+      index++;
+    }
+  }
+
+#ifdef DEBUG
+  if (index) {
+    for (int i = 0; i < index; i++) {
+      byte b = data[i];
+
+      if (b < 0x10) {
+        Serial.print('0');
+      }
+
+      Serial.print(b, HEX);
+      Serial.print(' ');
+    }
+    Serial.println();
+  }
+#endif
+
+  if (index != (uint16_t)(10 + responseLength)) {
+    return -1;
+  }
+
+  if (data[0] != 0xc0 || data[1] != 0x01 || data[2] != opcode || data[responseLength + 5] != 0x00 || data[responseLength + 6] != 0x00 || data[responseLength + 9] != 0xc0) {
+    return -1;
+  }
+
+  if (body) {
+    memcpy(body, &data[9], responseLength - 4);
+  }
+
+  return data[responseLength + 5];
+}
+
+void ESP32BootROMClass::writeEscapedBytes(const uint8_t* data, uint16_t length)
+{
+  uint16_t written = 0;
+
+  while (written < length) {
+    uint8_t b = data[written++];
+
+    if (b == 0xdb) {
+      _serial->write(0xdb);
+      _serial->write(0xdd);
+    } else if (b == 0xc0) {
+      _serial->write(0xdb);
+      _serial->write(0xdc);
+    } else {
+      _serial->write(b);
+    }
+  }
+}

Adafruit_AD8495_Guide/AD8495_Temperature.ino renamed to Adafruit_AD8495_Guide/AD8495_Temperature/AD8495_Temperature.ino

@@ -0,0 +1,56 @@
+/*
+  ESP32BootROM - part of the Firmware Updater for the 
+  Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
+  
+  Copyright (c) 2018 Arduino SA. All rights reserved.
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+  
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <Arduino.h>
+
+class ESP32BootROMClass {
+  public:
+    ESP32BootROMClass(HardwareSerial& hwSerial, int gpio0Pin, int resetnPin);
+
+    int begin(unsigned long baudrate);
+    void end();
+
+    int beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize);
+    int dataFlash(const void* data, uint32_t length);
+    int endFlash(uint32_t reboot);
+
+    int md5Flash(uint32_t offset, uint32_t size, uint8_t* result);
+
+  private:
+    int sync();
+    int changeBaudrate(unsigned long baudrate);
+    int spiAttach();
+
+    void command(int opcode, const void* data, uint16_t length);
+    int response(int opcode, unsigned long timeout, void* body = NULL);
+
+    void writeEscapedBytes(const uint8_t* data, uint16_t length);
+
+  private:
+    HardwareSerial* _serial;
+    int _gpio0Pin;
+    int _resetnPin;
+
+    uint32_t _flashSequenceNumber;
+    uint32_t _chunkSize;
+};
+
+extern ESP32BootROMClass ESP32BootROM;