Hi,
I'm using the I2C block as master (version 3.50).
After sending I2C_MasterSendStart to the wrong address and missing Ack:
1. I2C_MasterSendStart returns I2C_MSTR_NO_ERROR, which is not true.
2. The second command is "I2C_MasterWriteByte", and it's stuck in:
/* Wait until data byte has been transmitted */
while(I2C_WAIT_BYTE_COMPLETE(I2C_CSR_REG))
included the scope catpure.
Here is very simple code demonstrate it:
uint8 state = 0;
uint8 dev_id = 0;
uint8 wBuffer[2] = {1,2};
/*Enable Global Interrupts */
CYGlobalIntEnable;
I2C_Start();
for (dev_id=5 ; dev_id<0xff ; dev_id++)
{
state = I2C_MasterSendStart(dev_id, 0); //always returns I2C_MSTR_NO_ERROR
if (state != I2C_MSTR_NO_ERROR)
{
state = I2C_MasterClearStatus();
state = I2C_MasterWriteByte(0x00); // stuck here every time
state = I2C_MasterSendRestart(dev_id, 1);
wBuffer[0] = I2C_MasterReadByte(I2C_ACK_DATA);
wBuffer[1] = I2C_MasterReadByte(I2C_NAK_DATA);
}
}
