Posted on May 17, 2011 at 12:34How should I finish I2C master transmitting? I use this interrupt routine:
Code:
void I2C1_EV_IRQHandler(void)
{
u32 le=I2C_GetLastEvent(I2C1);
switch (le)
{
/* Test on I2C1 EV5 and clear it */
case I2C_EVENT_MASTER_MODE_SELECT:
/* Send I2C1 slave Address for write */
I2C_Send7bitAddress(I2C1, I2C2_SLAVE_ADDRESS7, I2C_Direction_Transmitter);
break;
/* Test on I2C1 EV6 and first EV8 and clear them */
case I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED:
/* Send the first data */
Tx_Idx--;
I2C_SendData(I2C1, *I2C1_Buffer_Tx++); //EV8 just after EV6
break;
/* Test on I2C1 EV8 and clear it */
case I2C_EVENT_MASTER_BYTE_TRANSMITTED:
if(Tx_Idx)
{
/* Transmit buffer data */
Tx_Idx--;
I2C_SendData(I2C1, *I2C1_Buffer_Tx++);
}
else
{
I2C_GenerateSTOP(I2C1, ENABLE);
}
break;
default:
break;
}
}
However, I receive next interrupt after
Code:
I2C_GenerateSTOP(I2C1, ENABLE);
How should I regullary stop transmitting? I want to stay in master mode, because after packet is transmitted, next packet should continue.
