/*******************************************************************************
* Function Name: SPIM_Init
********************************************************************************
*
* Summary:
* Inits/Restores default SPIM configuration provided with customizer.
*
* Parameters:
* None.
*
* Return:
* None.
*
* Side Effects:
* When this function is called it initializes all of the necessary parameters
* for execution. i.e. setting the initial interrupt mask, configuring the
* interrupt service routine, configuring the bit-counter parameters and
* clearing the FIFO and Status Register.
*
* Reentrant:
* No.
*
*******************************************************************************/
void SPIM_Init(void)
{
/* Initialize the Bit counter */
SPIM_COUNTER_PERIOD_REG = SPIM_BITCTR_INIT;
/* ISR initialization */
#if(SPIM_InternalTxInterruptEnabled)
CyIntDisable(SPIM_TX_ISR_NUMBER);
/* Set the ISR to point to the SPIM_isr Interrupt. */
CyIntSetVector(SPIM_TX_ISR_NUMBER, SPIM_TX_ISR);
/* Set the priority. */
CyIntSetPriority(SPIM_TX_ISR_NUMBER, SPIM_TX_ISR_PRIORITY);
#endif /* SPIM_InternalTxInterruptEnabled */
#if(SPIM_InternalRxInterruptEnabled)
CyIntDisable(SPIM_RX_ISR_NUMBER);
/* Set the ISR to point to the SPIM_isr Interrupt. */
CyIntSetVector(SPIM_RX_ISR_NUMBER, SPIM_RX_ISR);
/* Set the priority. */
CyIntSetPriority(SPIM_RX_ISR_NUMBER, SPIM_RX_ISR_PRIORITY);
#endif /* SPIM_InternalRxInterruptEnabled */
/* Clear any stray data from the RX and TX FIFO */
SPIM_ClearFIFO();
#if(SPIM_RXBUFFERSIZE > 4u)
SPIM_rxBufferRead = 0u;
SPIM_rxBufferWrite = 0u;
#endif /* SPIM_RXBUFFERSIZE > 4u */
#if(SPIM_TXBUFFERSIZE > 4u)
SPIM_txBufferRead = 0u;
SPIM_txBufferWrite = 0u;
#endif /* SPIM_TXBUFFERSIZE > 4u */
(void) SPIM_ReadTxStatus(); /* Clear any pending status bits */
(void) SPIM_ReadRxStatus(); /* Clear any pending status bits */
/* Configure the Initial interrupt mask */
#if (SPIM_TXBUFFERSIZE > 4u)
SPIM_TX_STATUS_MASK_REG = SPIM_TX_INIT_INTERRUPTS_MASK &
~SPIM_STS_TX_FIFO_NOT_FULL;
#else /* SPIM_TXBUFFERSIZE < 4u */
SPIM_TX_STATUS_MASK_REG = SPIM_TX_INIT_INTERRUPTS_MASK;
#endif /* SPIM_TXBUFFERSIZE > 4u */
SPIM_RX_STATUS_MASK_REG = SPIM_RX_INIT_INTERRUPTS_MASK;
}
/*******************************************************************************
* Function Name: main
********************************************************************************
* Summary:
* Main function performs following functions:
* 1. Starts Character LCD and print project info
* 2. Starts SPI Master component
* 3. Configures the DMA transfer for RX and TX directions
* 4. Displays the results on Character LCD
*
* Parameters:
* None.
*
* Return:
* None.
*
*******************************************************************************/
void main()
{
uint8 i = 0u;
CyGlobalIntEnable;
for(i=0u; i<8u; i++)
{
m_rxBuffer[i] = 0u;
}
LCD_Start();
LCD_Position(0u,0u);
LCD_PrintString("SPI Master");
LCD_Position(1u,0u);
LCD_PrintString("example");
CyDelay(3000u);
Dma_M_Tx_Configuration();
Dma_M_Rx_Configuration();
CyDmaChEnable(M_TxChannel, 1u);
CyDmaChEnable(M_RxChannel, 1u);
LCD_Position(0u,0u);
LCD_PrintString("Master Tx data:");
LCD_Position(1u,0u);
for(i=0u; i<8u; i++)
{
LCD_PrintHexUint8(m_txBuffer[i]);
}
CyDelay(5000u);
SPIM_Start();
while(!(SPIM_ReadTxStatus() & SPIM_STS_SPI_DONE));
LCD_ClearDisplay();
LCD_PrintString("Master Rx data:");
LCD_Position(1u,0u);
for(i=0u; i<8u; i++)
{
LCD_PrintHexUint8(m_rxBuffer[i]);
}
CyDelay(5000u);
LCD_ClearDisplay();
LCD_PrintString("SPI Master");
LCD_Position(1u,0u);
LCD_PrintString("example complete.");
for(;;)
{
}
}
/*******************************************************************************
* Function Name: SPIM_Init
********************************************************************************
*
* Summary:
* Inits/Restores default SPIM configuration provided with customizer.
*
* Parameters:
* None.
*
* Return:
* None.
*
* Side Effects:
* When this function is called it initializes all of the necessary parameters
* for execution. i.e. setting the initial interrupt mask, configuring the
* interrupt service routine, configuring the bit-counter parameters and
* clearing the FIFO and Status Register.
*
* Reentrant:
* No.
*
*******************************************************************************/
void SPIM_Init(void)
{
/* Initialize the Bit counter */
SPIM_COUNTER_PERIOD_REG = SPIM_BITCTR_INIT;
/* Init TX ISR */
#if(0u != SPIM_INTERNAL_TX_INT_ENABLED)
CyIntDisable (SPIM_TX_ISR_NUMBER);
CyIntSetPriority (SPIM_TX_ISR_NUMBER, SPIM_TX_ISR_PRIORITY);
(void) CyIntSetVector(SPIM_TX_ISR_NUMBER, &SPIM_TX_ISR);
#endif /* (0u != SPIM_INTERNAL_TX_INT_ENABLED) */
/* Init RX ISR */
#if(0u != SPIM_INTERNAL_RX_INT_ENABLED)
CyIntDisable (SPIM_RX_ISR_NUMBER);
CyIntSetPriority (SPIM_RX_ISR_NUMBER, SPIM_RX_ISR_PRIORITY);
(void) CyIntSetVector(SPIM_RX_ISR_NUMBER, &SPIM_RX_ISR);
#endif /* (0u != SPIM_INTERNAL_RX_INT_ENABLED) */
/* Clear any stray data from the RX and TX FIFO */
SPIM_ClearFIFO();
#if(SPIM_RX_SOFTWARE_BUF_ENABLED)
SPIM_rxBufferFull = 0u;
SPIM_rxBufferRead = 0u;
SPIM_rxBufferWrite = 0u;
#endif /* (SPIM_RX_SOFTWARE_BUF_ENABLED) */
#if(SPIM_TX_SOFTWARE_BUF_ENABLED)
SPIM_txBufferFull = 0u;
SPIM_txBufferRead = 0u;
SPIM_txBufferWrite = 0u;
#endif /* (SPIM_TX_SOFTWARE_BUF_ENABLED) */
(void) SPIM_ReadTxStatus(); /* Clear Tx status and swStatusTx */
(void) SPIM_ReadRxStatus(); /* Clear Rx status and swStatusRx */
/* Configure TX and RX interrupt mask */
SPIM_TX_STATUS_MASK_REG = SPIM_TX_INIT_INTERRUPTS_MASK;
SPIM_RX_STATUS_MASK_REG = SPIM_RX_INIT_INTERRUPTS_MASK;
}
/*******************************************************************************
* Function Name: main
********************************************************************************
* Summary:
* Main function performs following functions:
* 1. Starts Character LCD and print project info
* 2. Starts SPI Master component
* 3. Configures the DMA transfer for RX and TX directions
* 4. Displays the results on Character LCD
*
* Parameters:
* None.
*
* Return:
* None.
*
*******************************************************************************/
int main()
{
uint8 i;
LCD_Start();
LCD_Position(0u,0u);
LCD_PrintString("SPI Master");
LCD_Position(1u,0u);
LCD_PrintString("example");
CyDelay(2000u);
DmaTxConfiguration();
DmaRxConfiguration();
SPIM_Start();
CyDmaChEnable(rxChannel, STORE_TD_CFG_ONCMPLT);
CyDmaChEnable(txChannel, STORE_TD_CFG_ONCMPLT);
while (0u == (SPIM_ReadTxStatus() & SPIM_STS_SPI_DONE))
{
}
LCD_ClearDisplay();
LCD_PrintString("Master Rx data:");
LCD_Position(1u,0u);
for(i=0u; i<BUFFER_SIZE; i++)
{
LCD_PrintHexUint8(rxBuffer[i]);
}
for(;;)
{
}
}
