106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
/*
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SerialNINAPassthrough - Use esptool to flash the u-blox NINA (ESP32) module
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Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
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Copyright (c) 2018 Arduino SA. All rights reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef ARDUINO_SAMD_MKRVIDOR4000
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#include <VidorPeripherals.h>
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unsigned long baud = 119400;
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#else
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unsigned long baud = 115200;
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#endif
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int rts = -1;
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int dtr = -1;
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void setup() {
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Serial.begin(baud);
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#ifdef ARDUINO_SAMD_MKRVIDOR4000
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FPGA.begin();
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#endif
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SerialNina.begin(baud);
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#ifdef ARDUINO_SAMD_MKRVIDOR4000
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FPGA.pinMode(FPGA_NINA_GPIO0, OUTPUT);
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FPGA.pinMode(FPGA_SPIWIFI_RESET, OUTPUT);
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#else
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pinMode(NINA_GPIO0, OUTPUT);
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pinMode(NINA_RESETN, OUTPUT);
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#endif
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#ifdef ARDUINO_AVR_UNO_WIFI_REV2
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// manually put the NINA in upload mode
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digitalWrite(NINA_GPIO0, LOW);
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digitalWrite(NINA_RESETN, LOW);
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delay(100);
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digitalWrite(NINA_RESETN, HIGH);
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delay(100);
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digitalWrite(NINA_RESETN, LOW);
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#endif
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}
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void loop() {
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#ifndef ARDUINO_AVR_UNO_WIFI_REV2
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if (rts != Serial.rts()) {
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#ifdef ARDUINO_SAMD_MKRVIDOR4000
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FPGA.digitalWrite(FPGA_SPIWIFI_RESET, (Serial.rts() == 1) ? LOW : HIGH);
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#elif defined(ARDUINO_SAMD_NANO_33_IOT)
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digitalWrite(NINA_RESETN, Serial.rts() ? LOW : HIGH);
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#else
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digitalWrite(NINA_RESETN, Serial.rts());
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#endif
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rts = Serial.rts();
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}
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if (dtr != Serial.dtr()) {
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#ifdef ARDUINO_SAMD_MKRVIDOR4000
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FPGA.digitalWrite(FPGA_NINA_GPIO0, (Serial.dtr() == 1) ? HIGH : LOW);
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#else
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digitalWrite(NINA_GPIO0, (Serial.dtr() == 0) ? HIGH : LOW);
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#endif
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dtr = Serial.dtr();
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}
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#endif
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if (Serial.available()) {
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SerialNina.write(Serial.read());
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}
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if (SerialNina.available()) {
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Serial.write(SerialNina.read());
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}
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#ifndef ARDUINO_AVR_UNO_WIFI_REV2
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// check if the USB virtual serial wants a new baud rate
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if (Serial.baud() != baud) {
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rts = -1;
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dtr = -1;
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baud = Serial.baud();
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#ifndef ARDUINO_SAMD_MKRVIDOR4000
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SerialNina.begin(baud);
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#endif
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}
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#endif
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}
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