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4530f99e3b
bit. Track software serial transmission and receive errors. Nothing exposes the error counter values yet.
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* drv_softserial.h
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*
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* Created on: 23 Aug 2013
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* Author: Hydra
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*/
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#pragma once
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#define SOFT_SERIAL_BUFFER_SIZE 256
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typedef struct softSerial_s {
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serialPort_t port;
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const timerHardware_t *rxTimerHardware;
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volatile uint8_t rxBuffer[SOFT_SERIAL_BUFFER_SIZE];
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const timerHardware_t *txTimerHardware;
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volatile uint8_t txBuffer[SOFT_SERIAL_BUFFER_SIZE];
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uint8_t isSearchingForStartBit;
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uint8_t rxBitIndex;
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uint8_t rxLastLeadingEdgeAtBitIndex;
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uint8_t rxEdge;
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uint8_t isTransmittingData;
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int8_t bitsLeftToTransmit;
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uint16_t internalTxBuffer; // includes start and stop bits
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uint16_t internalRxBuffer; // includes start and stop bits
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uint8_t isInverted;
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uint16_t transmissionErrors;
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uint16_t receiveErrors;
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} softSerial_t;
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extern timerHardware_t* serialTimerHardware;
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extern softSerial_t softSerialPorts[];
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extern const struct serialPortVTable softSerialVTable[];
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void setupSoftSerialPrimary(uint32_t baud, uint8_t inverted);
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void setupSoftSerialSecondary(uint8_t inverted);
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// serialPort API
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void softSerialWriteByte(serialPort_t *instance, uint8_t ch);
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uint8_t softSerialTotalBytesWaiting(serialPort_t *instance);
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uint8_t softSerialReadByte(serialPort_t *instance);
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void softSerialSetBaudRate(serialPort_t *s, uint32_t baudRate);
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bool isSoftSerialTransmitBufferEmpty(serialPort_t *s);
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