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softspim: allow phase mode 2 (safe phase)

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This commit is contained in:
uvos 2022-03-15 22:41:06 +01:00
parent 50d233fdf7
commit 36cc688479
2 changed files with 5 additions and 5 deletions
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8
softspim.cpp
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@ -17,19 +17,19 @@ uint8_t SpiMaster::readWrite(uint8_t in)
writePin(_port, _pinOut, in & (1 << i));
else
writePin(_port, _pinOut, in & (1 << (7-i)));
if constexpr (CLOCK_PHASE == 0)
if constexpr (CLOCK_PHASE == 0 || CLOCK_PHASE == 2)
_delay_us(DELAY_TIME_US);
writePin(_port, _pinClock, !CLOCK_POLARITY);
if constexpr (CLOCK_PHASE == 1)
if constexpr (CLOCK_PHASE == 1 || CLOCK_PHASE == 2)
_delay_us(DELAY_TIME_US);
if constexpr (BIT_ORDER == 0)
recByte |= readPin(_pinReg, _pinIn) << i;
else
recByte |= readPin(_pinReg, _pinIn) << (7-i);
if constexpr (CLOCK_PHASE == 0)
if constexpr (CLOCK_PHASE == 0 || CLOCK_PHASE == 2)
_delay_us(DELAY_TIME_US);
writePin(_port, _pinClock, CLOCK_POLARITY);
if constexpr (CLOCK_PHASE == 1)
if constexpr (CLOCK_PHASE == 1 || CLOCK_PHASE == 2)
_delay_us(DELAY_TIME_US);
}
return recByte;

2
softspim.h
View File

@ -7,7 +7,7 @@ class SpiMaster
private:
static constexpr uint8_t CLOCK_POLARITY = 0;
static constexpr uint8_t CLOCK_PHASE = 0;
static constexpr uint8_t CLOCK_PHASE = 2;
static constexpr uint8_t BIT_ORDER = 1;
volatile uint8_t * const _port = &PORTB;