void iic_Receive (u8 slvAddress, iic_ptr eotCB, iic_ptr commFailedCB, u8 toRead, u8* receiveBuffer)
{
if (iic_IsBusy())
{
if (iic_data.stoppingBus) // If the bus is busy but not because it is being stopped, it's a logical error.
while (iic_IsBusy()); // Wait until bus stop is complete
else
err_Throw("iic: attempt to receive message while bus is busy.\n");
}
iic_data.stoppingBus = _FALSE;
iic_data.eotCB = eotCB;
iic_data.commFailedCB = commFailedCB;
iic_data.currCB = iic_read_start;
iic_data.dataIdx = 0;
iic_commData.dataSize = toRead-1; // toRead es lo que quiero leer, el -1 es necesario para eso.
if (receiveBuffer != NULL)
iic_commData.dataPtr = receiveBuffer;
else
iic_commData.dataPtr = iic_commData.data;
IIC_SET_AS_TX();
IIC_START();
IIC_SEND((slvAddress << 1) + READ); //precedence
}
void iic_Send (u8 slvAddress, iic_ptr eotCB, iic_ptr commFailedCB, u8 toSend, u8* sendBuffer)
{
if (iic_IsBusy())
{
if (iic_data.stoppingBus) // If the bus is busy but not because it is being stopped, it's a logical error.
while (iic_IsBusy()); // Wait until bus stop is complete
else
err_Throw("iic: attempt to send message while bus is busy.\n");
}
iic_data.stoppingBus = _FALSE;
iic_data.eotCB = eotCB;
iic_data.commFailedCB = commFailedCB;
iic_data.currCB = iic_write;
iic_data.dataIdx = 0;
iic_commData.dataSize = toSend-1; // New version: dataSize received as parameter for compatibility with receive.
// As before, toSend is the size (to send 1 byte, toSend has to be 1), so the (-1) is for compatibility.
if (sendBuffer != NULL)
iic_commData.dataPtr = sendBuffer;
else
iic_commData.dataPtr = iic_commData.data;
IIC_SET_AS_TX();
IIC_START();
IIC_SEND((slvAddress << 1) + WRITE);
}
void IIC_MasterRW(IIC_StatType stat,uint8_t slave_addr,uint8_t reg_addr,uint16_t length,uint8_t* data)
{
if(IIC_Status.sw == IIC_Switch_Pause)return;
//wait until free
while(IIC_Status.i2cstat == IIC_I2CStat_Busy);
IIC_Status.stat = stat;
IIC_Status.step = IIC_Step_Call;
IIC_Status.slave_addr = slave_addr;
IIC_Status.reg_addr = reg_addr;
IIC_Status.queuelength = length;
IIC_QueuePointer = 0;
IIC_Queue = data;
IIC_START();
}
bool iic_receive (u8 slvAddress, iic_ptr eotCB, iic_ptr commFailedCB, u8 toRead)
{
if ((iic_isBusy()) && (iic_data.stoppingBus))
while (iic_isBusy()); // Se espera a que se termine de liberar el bus
iic_data.stoppingBus = _FALSE;
iic_data.eotCB = eotCB;
iic_data.commFailedCB = commFailedCB;
iic_data.currCB = iic_read_start;
iic_data.dataIdx = 0;
iic_commData.dataSize = toRead-1;
IIC_SET_AS_TX();
IIC_START();
IIC_SEND((slvAddress << 1) + READ); //precedence
return _TRUE;
}
bool iic_send (u8 slvAddress, iic_ptr eotCB, iic_ptr commFailedCB)
{
if ((iic_isBusy()) && (iic_data.stoppingBus))
while (iic_isBusy()); // Se espera a que se termine de liberar el bus
iic_data.stoppingBus = _FALSE;
iic_data.eotCB = eotCB;
iic_data.commFailedCB = commFailedCB;
iic_data.currCB = iic_write;
iic_data.dataIdx = 0;
iic_commData.dataSize--;
IIC_SET_AS_TX();
IIC_START();
IIC_SEND((slvAddress << 1) + WRITE);
return _TRUE;
}
