Wire: if we are reading only one byte, do not send empty read command

This commit is contained in:
me-no-dev 2016-12-14 18:43:32 +02:00
parent 917a4fd6f0
commit 04e0902ca6

View File

@ -267,9 +267,17 @@ i2c_err_t i2cRead(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data
i2cResetFiFo(i2c);
}
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_READ, willRead, false, false, false);
if((len - willRead) > 1) {
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_END, 0, false, false, false);
if(willRead){
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_READ, willRead, false, false, false);
if((len - willRead) > 1) {
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_END, 0, false, false, false);
} else {
willRead++;
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_READ, 1, true, false, false);
if(sendStop) {
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_STOP, 0, false, false, false);
}
}
} else {
willRead++;
i2cSetCmd(i2c, cmdIdx++, I2C_CMD_READ, 1, true, false, false);