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Add the TX FIFO the I2C driver.

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This commit is contained in:
Jonathan Naylor
2020-11-19 16:50:21 +00:00
parent 7f7ce2072a
commit a119311d93
3 changed files with 50 additions and 31 deletions
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I2CPort.h
+9 -3
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@@ -25,6 +25,8 @@
#include <cstdint>
const uint16_t I2C_TX_FIFO_SIZE = 512U;
class CI2CPort {
public:
@@ -32,13 +34,17 @@ public:
bool init();
uint8_t writeCommand(const uint8_t* data, uint8_t length);
uint8_t writeData(const uint8_t* data, uint8_t length);
uint8_t write(const uint8_t* data, uint8_t length);
private:
uint8_t m_n;
bool m_ok;
volatile uint8_t m_fifo[I2C_TX_FIFO_SIZE];
volatile uint16_t m_fifoHead;
volatile uint16_t m_fifoTail;
uint16_t fifoLevel();
bool fifoPut(uint8_t next);
};
#endif