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i2c: change clock polarity #316

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i2c: change clock polarity #316

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8 changes: 4 additions & 4 deletions tools/communication/src/i2c.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -83,18 +83,18 @@ static void writeBit(struct i2c_desc *desc, std::vector<unsigned short> &buffer,
{
auto *m2KI2CDesc = (m2k_i2c_desc *) desc->extra;
auto samplesPerHalfBit = (unsigned int) (m2KI2CDesc->sample_rate / desc->max_speed_hz) / 2;
//scl high
//scl low
for (unsigned int i = 0; i < samplesPerHalfBit; ++i) {
unsigned short sample = 0;
setBit(sample, m2KI2CDesc->scl);
if (bit) {
setBit(sample, m2KI2CDesc->sda);
}
buffer.push_back(sample);
}
//scl low
//scl high
for (unsigned int i = 0; i < samplesPerHalfBit; ++i) {
unsigned short sample = 0;
setBit(sample, m2KI2CDesc->scl);
if (bit) {
setBit(sample, m2KI2CDesc->sda);
}
Expand All @@ -106,7 +106,7 @@ static void writeByte(struct i2c_desc *desc, std::vector<unsigned short> &buffer
{
auto *m2KI2CDesc = (m2k_i2c_desc *) desc->extra;
auto samplesPerHalfBit = (unsigned int) (m2KI2CDesc->sample_rate / desc->max_speed_hz) / 2;
bool clockPolarity = true;
bool clockPolarity = false;

for (int i = 0; i < 16; i++) {
//encode data
Expand Down