diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/device/cdc_dual_ports/src/main.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/examples/device/cdc_dual_ports/src/main.c b/examples/device/cdc_dual_ports/src/main.c index 1167a5d50..ef12186f2 100644 --- a/examples/device/cdc_dual_ports/src/main.c +++ b/examples/device/cdc_dual_ports/src/main.c @@ -119,6 +119,26 @@ static void cdc_task(void) { } } +// Invoked when cdc when line state changed e.g connected/disconnected +// Use to reset to DFU when disconnect with 1200 bps +void tud_cdc_line_state_cb(uint8_t instance, bool dtr, bool rts) { + (void)rts; + + // DTR = false is counted as disconnected + if (!dtr) { + // touch1200 only with first CDC instance (Serial) + if (instance == 0) { + cdc_line_coding_t coding; + tud_cdc_get_line_coding(&coding); + if (coding.bit_rate == 1200) { + if (board_reset_to_bootloader) { + board_reset_to_bootloader(); + } + } + } + } +} + //--------------------------------------------------------------------+ // BLINKING TASK //--------------------------------------------------------------------+ |