Hello,
I'm posting on behalf of someone.
"I am using HALCOGEN to generate the I2C Drivers. I am having trouble receiving data from a DS1621 because it requires a repeated start to begin receiving. From what I am seeing on my scope so far I am getting repeated sends. I have included my latest code below.
void DS1621::I2CRcv(uint8 Cmd, uint32 length, uint8 * data) {
//config
i2cSetMode(mNode, I2C_MASTER);
i2cSetDirection(mNode, I2C_TRANSMITTER);
i2cSetSlaveAdd(mNode, SlaveAddr);
//send
i2cSetStart(mNode);
i2cSendByte(mNode, Cmd);
/* Wait until Bus Busy is cleared */
while(i2cIsBusBusy(mNode) == true);
//reconfig
i2cSetMode(mNode, I2C_MASTER);
i2cSetDirection(mNode, I2C_RECEIVER);
i2cSetSlaveAdd(mNode, SlaveAddr);
i2cSetCount(mNode, length);
i2cSetStop(mNode);
//receive
i2cSetStart(mNode);
if(length == 1)
{
*data = i2cReceiveByte(mNode);
}
else
{
i2cReceive(mNode, length, data);
}
/* Wait until Bus Busy is cleared */
while(i2cIsBusBusy(mNode) == true);
/* Wait until Stop is detected */
while(i2cIsStopDetected(mNode) == 0);
/* Clear the Stop condition */
i2cClearSCD(mNode);
for(int delay=0;delay<1000000;delay++); }
"
Any ideas what I may be doing wrong?
Thanks,
Tom
