diff options
Diffstat (limited to 'cores/arduino/CDC.cpp')
| -rw-r--r-- | cores/arduino/CDC.cpp | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/cores/arduino/CDC.cpp b/cores/arduino/CDC.cpp index 6dd1cbe..deda5c0 100644 --- a/cores/arduino/CDC.cpp +++ b/cores/arduino/CDC.cpp @@ -23,20 +23,6 @@ #if defined(USBCON) #ifdef CDC_ENABLED -void Reboot() -{ - USB.detach(); - cli(); - - // Reset the microcontroller to run the bootloader - wdt_enable(WDTO_15MS); - for (;;); -} - -// Define constants and variables for buffering incoming serial data. We're -// using a ring buffer (I think), in which head is the index of the location -// to which to write the next incoming character and tail is the index of the -// location from which to read. #if (RAMEND < 1000) #define SERIAL_BUFFER_SIZE 16 #else @@ -114,9 +100,14 @@ bool WEAK CDC_Setup(Setup& setup) if (CDC_SET_CONTROL_LINE_STATE == r) { - if (0 != _usbLineInfo.lineState && 1200 == _usbLineInfo.dwDTERate) // auto-reset is triggered when the port, already open at 1200 bps, is closed - Reboot(); _usbLineInfo.lineState = setup.wValueL; + // auto-reset into the bootloader is triggered when the port, already + // open at 1200 bps, is closed. this is the signal to start the watchdog + // with a relatively long period so it can finish housekeeping tasks + // like servicing endpoints before the sketch ends + if (0 != _usbLineInfo.lineState && 1200 == _usbLineInfo.dwDTERate) { + wdt_enable(WDTO_2S); + } return true; } } |