Bugfixes and improvements since 1.3.0

Generic

• analogWrite: delete pwm object if duty < 0 (useful on nRF52 since PWMs are limited)
• USBSerial: fix sending more than CDC_MAX_PACKET_SIZE in a single shot
• Tone: allow pitches higher than 500Hz

Portenta

• Port PluggableUSBMSD (allows exposing any mass storage medium over USB)
• WiFi: fix AccessPoint functionlity
• CM4: route Serial object to UART1

Bugfixes and improvements since 1.2.2

• Various fixes on WiFi library

  • WiFi firmware is now stored in external QSPI flash
  • SSL certificates are stored in external QSPI flash too
  • Please run PortentaWiFiFirmwareUpdater sketch once to setup your board

• Allow a second USBSerial port

  • This port can be used to redirect ThreadDebug calls while keeping Serial functional

    #include <ThreadDebug.h>
    
    USBSerial SerialUSB1(false, "DebugPort");
    UsbDebugCommInterface  debugComm(&SerialUSB1);
    ThreadDebug            threadDebug(&debugComm, DEBUG_BREAK_IN_SETUP);
    

• Fix and improve Portenta Camera library

• Bootloader:

  • Fix frequent upload failures on various USB configurations
  • Handle double tap more consistently
  • Use full 96 bit UID as iSerial field
  • Improve getBootloaderInfo and updateBootloader sketches to contain more reliable information

• RPC:

  • Introduce SerialRPC library (experimental)
  • Optimize the library for speed and to use less resources

• Fix interrupts not being fired on Portenta_H7_M4