Junichi Katsu
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Dependents: MilkcocoaSample MilkcocoaSampleESP8266_LED MilkcocoaSampleESP8266 MilkcocoaSample_3G ... more
Diff: SoftSerialSendOnly/SoftSerialSendOnry_tx.cpp
- Revision:
- 1:4a634c06c5dc
- Parent:
- 0:23e533c4b1ec
- Child:
- 2:9afb66979712
--- a/SoftSerialSendOnly/SoftSerialSendOnry_tx.cpp Tue Dec 15 09:56:32 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,80 +0,0 @@
-#include "SoftSerialSendOnry.h"
-
-int SoftSerialSendOnry::_putc(int c)
-{
- while(!writeable());
- prepare_tx(c);
- tx_bit = 0;
- txticker.prime();
- tx_handler();
- return 0;
-}
-
-void SoftSerialSendOnry::send_break(void) {
- while(!writeable());
- tx_bit = 0; //Just to make sure it appears as non-writable to other threads/IRQs
- tx->write(0);
- wait_us((bit_period * _total_bits * 3) / 2);
- tx->write(1);
- tx_bit = -1;
-}
-
-int SoftSerialSendOnry::writeable(void)
-{
- if (!tx_en)
- return false;
- if (tx_bit == -1)
- return true;
- return false;
-}
-
-void SoftSerialSendOnry::tx_handler(void)
-{
- if (tx_bit == _total_bits) {
- tx_bit = -1;
- fpointer[TxIrq].call();
- return;
- }
-
- //Flip output
- int cur_out = tx->read();
- tx->write(!cur_out);
-
- //Calculate when to do it again
- int count = bit_period;
- tx_bit++;
- while(((_char >> tx_bit) & 0x01) == !cur_out) {
- count+=bit_period;
- tx_bit++;
- }
-
- txticker.setNext(count);
-}
-
-void SoftSerialSendOnry::prepare_tx(int c)
-{
- _char = c << 1;
-
- bool parity;
- switch (_parity) {
- case Forced1:
- _char |= 1 << (_bits + 1);
- case Even:
- parity = false;
- for (int i = 0; i<_bits; i++) {
- if (((_char >> i) & 0x01) == 1)
- parity = !parity;
- }
- _char |= parity << (_bits + 1);
- case Odd:
- parity = true;
- for (int i = 0; i<_bits; i++) {
- if (((_char >> i) & 0x01) == 1)
- parity = !parity;
- }
- _char |= parity << (_bits + 1);
- }
-
- _char |= 0xFFFF << (1 + _bits + (bool)_parity);
- _char &= ~(1<<_total_bits);
-}
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