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SerialNINAPassthrough sketch in working condition for MKR Vidor 4000 (https://forum.arduino.cc/index.php?topic=675947.0) (based on PRs 112, 111, 110, 109) https://github.com/arduino-libraries/WiFiNINA/pulls
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/* | |
SerialNINAPassthrough - Use esptool to flash the u-blox NINA (ESP32) module | |
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 | |
*/ | |
#ifdef ARDUINO_SAMD_MKRVIDOR4000 | |
#include <VidorPeripherals.h> | |
#endif | |
unsigned long baud = 115200; | |
#define BUFFER_SIZE 512 | |
static unsigned int buffer_length; | |
static char buffer[BUFFER_SIZE]; | |
int rts = -1; | |
int dtr = -1; | |
void setup() { | |
Serial.begin(baud); | |
#ifdef ARDUINO_SAMD_MKRVIDOR4000 | |
FPGA.begin(); | |
#endif | |
SerialNina.begin(baud); | |
#ifdef ARDUINO_SAMD_MKRVIDOR4000 | |
FPGA.pinMode(FPGA_NINA_GPIO0, OUTPUT); | |
FPGA.pinMode(FPGA_SPIWIFI_RESET, OUTPUT); | |
#else | |
pinMode(NINA_GPIO0, OUTPUT); | |
pinMode(NINA_RESETN, OUTPUT); | |
#endif | |
#ifdef ARDUINO_AVR_UNO_WIFI_REV2 | |
// manually put the NINA in upload mode | |
digitalWrite(NINA_GPIO0, LOW); | |
digitalWrite(NINA_RESETN, LOW); | |
delay(100); | |
digitalWrite(NINA_RESETN, HIGH); | |
delay(100); | |
digitalWrite(NINA_RESETN, LOW); | |
#endif | |
} | |
void loop() { | |
#ifndef ARDUINO_AVR_UNO_WIFI_REV2 | |
if (rts != Serial.rts()) { | |
#ifdef ARDUINO_SAMD_MKRVIDOR4000 | |
FPGA.digitalWrite(FPGA_SPIWIFI_RESET, (Serial.rts() == 1) ? LOW : HIGH); | |
#elif defined(ARDUINO_SAMD_NANO_33_IOT) | |
digitalWrite(NINA_RESETN, Serial.rts() ? LOW : HIGH); | |
#else | |
digitalWrite(NINA_RESETN, Serial.rts()); | |
#endif | |
rts = Serial.rts(); | |
} | |
if (dtr != Serial.dtr()) { | |
#ifdef ARDUINO_SAMD_MKRVIDOR4000 | |
FPGA.digitalWrite(FPGA_NINA_GPIO0, (Serial.dtr() == 0) ? HIGH : LOW); | |
#else | |
digitalWrite(NINA_GPIO0, (Serial.dtr() == 0) ? HIGH : LOW); | |
#endif | |
dtr = Serial.dtr(); | |
} | |
#endif | |
if (Serial.available() > 0) { | |
buffer_length = min(Serial.available(), BUFFER_SIZE); | |
Serial.readBytes(buffer, buffer_length); | |
SerialNina.write(buffer, buffer_length); | |
} | |
if (SerialNina.available() > 0) { | |
buffer_length = min(SerialNina.available(), BUFFER_SIZE); | |
SerialNina.readBytes(buffer, buffer_length); | |
Serial.write(buffer, buffer_length); | |
} | |
#ifndef ARDUINO_AVR_UNO_WIFI_REV2 | |
// check if the USB virtual serial wants a new baud rate | |
if (Serial.baud() != baud) { | |
rts = -1; | |
dtr = -1; | |
baud = Serial.baud(); | |
SerialNina.begin(baud); | |
} | |
#endif | |
} |
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