add tud_ready() check in tud_cdc_n_write_flush()
other clean up
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@@ -145,16 +145,6 @@ void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts)
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void tud_cdc_rx_cb(uint8_t itf)
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{
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(void) itf;
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uint8_t const line_state = tud_cdc_get_line_state();
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// Provide information that terminal did not set DTR bit
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if( !(line_state & 0x01) )
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{
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tud_cdc_write_str("\r\nTinyUSB example: Your terminal did not set DTR bit\r\n");
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tud_cdc_write_flush();
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// Clear rx fifo since we do not read the data
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tud_cdc_read_flush();
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}
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}
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//--------------------------------------------------------------------+
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