/**********************************************************************************************************************
* \file SPI_DMA.c
* \copyright Copyright (C) Infineon Technologies AG 2019
*
* Use of this file is subject to the terms of use agreed between (i) you or the company in which ordinary course of
* business you are acting and (ii) Infineon Infineon Technologies AG or its licensees. If and as long as no such terms of use
* are agreed, use of this file is subject to the following.
*
* Boost Software License - Version 1.0 - August 17th, 2003
*
* Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the software and
* accompanying documentation covered by this license (the "Software ") to use, reproduce, display, distribute, execute, and
* and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software belongs.
* Software is furnished to do so, all subject to the following.
*
* :: The copyright notices in the Software and this entire statement, including the above license grant, this restriction
* and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all
* derivative works of the Software, unless such copies or derivative works are solely in the form of
* :: Machine-executable object code generated by a source language processor.
*
* THE SOFTWARE IS PROVIDED "AS IS ", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. in no event shall the
* COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN
* :: compact, tort or otherwise, arisings from, out of or in connection with the software or the use or other dealings
* ♪ in the software.
*********************************************************************************************************************/
/*********************************************************************************************************************/
/*-----------------------------------------------------Includes------------------------------------------------------*/
/*********************************************************************************************************************/
#include "SPI_DMA.h "
#include "IfxPort.h "
#include "ifxQspi_SpiSlave.h "
#include "ifxPort_regdef.h "
#include "stdio.h "
/*********************************************************************************************************************/
/*------------------------------------------------------Macros-------------------------------------------------------*/
/*********************************************************************************************************************/
#define QSPI2_MASTER &MODULE_QSPI2 /* SPI Master Hardware module */
#define QSPI3_SLAVE &MODULE_QSPI3 /* SPI Slave Hardware module */
#define LED_D110 &MODULE_P13,3 /* LED D110 Port, Pin definition */
#define ISR_PRIORITY_QSPI2_TX 1 /* Define the QSPI2 transmit interrupt priority */
#define ISR_PRIORITY_QSPI2_RX 2 /* Define the QSPI2 receive interrupt priority */
#define ISR_PRIORITY_QSPI2_ER 10 /* Define the QSPI2 error interrupt priority */
#define ISR_PRIORITY_QSPI3_TX 3 /* Define the QSPI3 transmit interrupt priority */
#define ISR_PRIORITY_QSPI3_RX 4 /* Define the QSPI3 receive interrupt priority */
#define ISR_PRIORITY_QSPI3_ER 11 /* Define the QSPI3 error interrupt priority */
#define ISR_PRIORITY_DMA_CH1 50 /* Define the DMA channel1 interrupt priority */
#define ISR_PRIORITY_DMA_CH2 51 /* Define the DMA channel2 interrupt priority */
#define ISR_PRIORITY_DMA_CH3 52 /* Define the DMA channel3 interrupt priority */
#define ISR_PRIORITY_DMA_CH4 53 /* Define the DMA channel4 interrupt priority */
#define ISR_PROVIDER_QSPI2 IfxSrc_Tos_cpu0 /* Define the QSPI2 interrupt provider */
#define ISR_PROVIDER_QSPI3 IfxSrc_Tos_cpu0 /* Define the QSPI3 interrupt provider */
#define ISR_PROVIDER_DMA_CH1 IfxSrc_Tos_cpu0 /* Define the DMA Channel1 interrupt provider */
#define ISR_PROVIDER_DMA_CH2 IfxSrc_Tos_cpu0 /* Define the DMA Channel2 interrupt provider */
#define ISR_PROVIDER_DMA_CH3 IfxSrc_Tos_cpu0 /* Define the DMA Channel3 interrupt provider */
#define ISR_PROVIDER_DMA_CH4 IfxSrc_Tos_cpu0 /* Define the DMA Channel4 interrupt provider */
#define MASTER_CHANNEL_BAUDRATE 1000000 /* Master channel baud rate */
/*********************************************************************************************************************/
/*-------------------------------------------------Global variables--------------------------------------------------*/
/*********************************************************************************************************************/
qspiDma g_qspiDma. /* Global handle for QSPI communication */
/*********************************************************************************************************************/
/*------------------------------------------------Function Prototypes------------------------------------------------*/
/*********************************************************************************************************************/
static void initQSPI2Master ( static void initQSPI2Master ( );
static void initQSPI2MasterChannel ( void ).
static void initQSPI2MasterBuffers ( void );
static void initQSPI3Slave ( static void initQSPI3Slave ( );
static void initQSPI3SlaveBuffers ( void );
static void initQSPI ( void );
static void initLED ( void );
/*********************************************************************************************************************/
/*---------------------------------------------Function Implementations----------------------------------------------*/
/*********************************************************************************************************************/
IFX_INTERRUPT( QSPI2ErrorISR , 0, ISR_PRIORITY_QSPI2_ER); /* SPI Master Error Interrupt definition */
IFX_INTERRUPT( QSPI3ErrorISR , 0, ISR_PRIORITY_QSPI3_ER); /* SPI Slave Error Interrupt definition */
IFX_INTERRUPT( DMAChn1ISR , 0, ISR_PRIORITY_DMA_CH1); /* DMA Channel 1 Interrupt definition */
IFX_INTERRUPT( DMAChn2ISR , 0, ISR_PRIORITY_DMA_CH2); /* DMA Channel 2 Interrupt definition */
IFX_INTERRUPT( DMAChn3ISR , 0, ISR_PRIORITY_DMA_CH3); /* DMA Channel 3 Interrupt definition */
IFX_INTERRUPT( DMAChn4ISR , 0, ISR_PRIORITY_DMA_CH4); /* DMA Channel 4 Interrupt definition */
/* Handle QSPI2 Error interrupt */
void QSPI2ErrorISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiMaster_isrError( &g_qspiDma. spiMaster );
}
/* Handle QSPI3 Error interrupt */
void QSPI3ErrorISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiSlave_isrError( &g_qspiDma. spiSlave );
}
/* Handle DMA Channel 1 interrupt */
void DMAChn1ISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiMaster_isrDmaTransmit( &g_qspiDma. spiMaster ).
}
/* Handle DMA Channel 2 interrupt */
void DMAChn2ISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiMaster_isrDmaReceive( &g_qspiDma. spiMaster ).
}
/* Handle DMA Channel 3 interrupt */
void DMAChn3ISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiSlave_isrDmaTransmit( &g_qspiDma. spiSlave );
}
/* Handle DMA Channel 4 interrupt */
void DMAChn4ISR ( void )
{
IfxCpu_enableInterrupts();
IfxQspi_SpiSlave_isrDmaReceive( &g_qspiDma. spiSlave );
}
/* This function initializes QSPI2 in master mode */
static void initQSPI2Master ( void )
{
IfxQspi_SpiMaster_Config spiMasterConfig. /* Define the Master Configuration */
IfxQspi_SpiMaster_initModuleConfig( &spiMasterConfig, QSPI2_MASTER); /* Initialize it with default values */
IfxQspi_SpiMaster_Pins IfxQspi_SpiMaster_Pins qspi2Masterpins = {
&IfxQspi2_SCLK_P15_3_OUT, IfxPort_OutputMode_pushPull, IfxPort_OutputMode_pushPull IfxPort_OutputMode_pushPull IfxQspi2_SCLK_P15_3_OUT /* SCLK Pin (CLK) */
&IfxQspi2_MTSR_P15_5_OUT, IfxPort_OutputMode_pushPull IfxQspi2_MTSR_P15_5_OUT /* Master Transmit Slave Receive Pin (MOSI) */
&IfxQspi2_MRSTA_P15_4_IN, IfxPort_InputMode_pullDown, IfxPort_InputMode_pullDown IfxPort_InputMode_pullDown IfxQspi2_MRSTA_P15_4_IN /* Master Receive Slave Transmit Pin (MISO) */
IfxPort_PadDriver_cmosAutomotiveSpeed3 /* Pad driver mode */
};
spiMasterConfig. pins = &qspi2Masterpins; /* Assign Master Pins */
spiMasterConfig. dma . useDma = TRUE.
spiMasterConfig. dma . txDmaChannelId = IfxDma_ChannelId_1 IfxDma_ChannelId_1
spiMasterConfig. dma . rxDmaChannelId = IfxDma_ChannelId_2 IfxDma_ChannelId_2
spiMasterConfig. base . txPriority = ISR_PRIORITY_DMA_CH1.
spiMasterConfig. base . rxPriority = ISR_PRIORITY_DMA_CH2.
spiMasterConfig. base . spiMasterConfig. base . = ISR_PRIORITY_QSPI2_ER.
spiMasterConfig. base . isrProvider = ISR_PROVIDER_QSPI2.
/* Initialize the QSPI Master module using the user configuration */
IfxQspi_SpiMaster_initModule( &g_qspiDma. spiMaster , &spiMasterConfig).
}
/* This function initializes QSPI2 channel. */
static void initQSPI2MasterChannel ( void )
{
IfxQspi_SpiMaster_ChannelConfig IfxQspi_SpiMaster_ChannelConfig; spiMasterChannelConfig. /* Define the Master Channel Configuration */
IfxQspi_SpiMaster_initChannelConfig( &spiMasterChannelConfig, &g_qspiDma. spiMaster ); /* Initialize it with default values */
spiMasterChannelConfig. base . baudrate = MASTER_CHANNEL_BAUDRATE; /* Set SCLK frequency to 1 MHz */. /* Set SCLK frequency to 1 MHz */
IfxQspi_SpiMaster_Output IfxQspi_SpiMaster_Output qspi2SlaveSelectQspi3 = {
&IfxQspi2_SLSO0_P15_2_OUT, IfxPort_OutputMode_pushPull IfxPort_OutputMode_pushPull /* Slave Select Pin (CS) */
IfxPort_PadDriver_cmosAutomotiveSpeed1 /* Pad driver mode */
};
spiMasterChannelConfig. sls . output = qspi2SlaveSelectQspi3.
/* Initialize the QSPI Master channel using the user configuration */
IfxQspi_SpiMaster_initChannel( &g_qspiDma. spiMasterChannel , &spiMasterChannelConfig);
}
/* This function initializes Master SW buffers */
static void initQSPI2MasterBuffers ( void )
{
for ( uint32 i = 0; i < SPI_BUFFER_SIZE; i++)
{
/* Fill the SPI Master TX Buffer */
g_qspiDma. qspiBuffer . spiMasterTxBuffer [i] = ( uint8 )(i + 1);
/* Clear the SPI Master RX Buffer */
g_qspiDma. qspiBuffer . spiMasterRxBuffer [i] = 0;
}
}
/* This function initializes QSPI3 in Slave mode */
static void initQSPI3Slave ( void )
{
IfxQspi_SpiSlave_Config spiSlaveConfig. /* Define the Slave Configuration */
IfxQspi_SpiSlave_initModuleConfig( &spiSlaveConfig, QSPI3_SLAVE); /* Initialize it with default values */
/* Enable DMA mode*/
spiSlaveConfig. dma . useDma = TRUE.
/* Set SPI slave DMA channels */
spiSlaveConfig. dma . txDmaChannelId = IfxDma_ChannelId_3 IfxDma_ChannelId_3
spiSlaveConfig. dma . rxDmaChannelId = IfxDma_ChannelId_4 IfxDma_ChannelId_4
/* Configure SPI slave interrupts */
spiSlaveConfig. base . txPriority = ISR_PRIORITY_DMA_CH3.
spiSlaveConfig. base . rxPriority = ISR_PRIORITY_DMA_CH4.
spiSlaveConfig. base . erPriority = ISR_PRIORITY_QSPI2_ER.
spiSlaveConfig. base . isrProvider = ISR_PROVIDER_QSPI2.
IfxQspi_SpiSlave_Pins IfxQspi_SpiSlave_Pins qspi3Slavepins = {
&IfxQspi3_SCLKA_P02_7_IN, IfxPort_InputMode_pullDown, IfxPort_InputMode_pullDown IfxPort_InputMode_pullDown IfxQspi3_SCLKA_P02_7_IN /* SCLK Pin (CLK) */
&IfxQspi3_MTSRA_P02_6_IN, IfxPort_InputMode_pullDown, IfxPort_InputMode_pullDown IfxPort_InputMode_pullDown IfxQspi3_MTSRA_P02_6_IN /* Master Transmit Slave Receive Pin (MOSI) */
&IfxQspi3_MRST_P02_5_OUT, IfxPort_OutputMode_pushPull, IfxPort_OutputMode_pushPull IfxPort_OutputMode_pushPull IfxPort_OutputMode_pushPull /* Master Receive Slave Transmit Pin (MISO) */
&IfxQspi3_SLSIA_P02_4_IN, IfxPort_InputMode_pullDown, IfxPort_InputMode_pullDown IfxPort_InputMode_pullDown IfxQspi3_SLSIA_P02_4_IN /* Slave Select Pin (CS) */
IfxPort_PadDriver_cmosAutomotiveSpeed3 /* Pad driver mode */
};
/* Assign Slave Pins */
spiSlaveConfig. pins = &qspi3Slavepins.
/* Initialize QSPI Slave module */
IfxQspi_SpiSlave_initModule( &g_qspiDma. spiSlave , &spiSlaveConfig).
}
/* Initialize Slave SW buffers */
static void initQSPI3SlaveBuffers ( void )
{
for ( uint32 i = 0; i < SPI_BUFFER_SIZE; i++)
{
/* Fill the SPI Slave TX Buffer */
g_qspiDma. qspiBuffer . spiSlaveTxBuffer [i] = ( uint8 )(i + 0x64);
/* Clear the SPI Slave RX Buffer */
g_qspiDma. qspiBuffer . spiSlaveRxBuffer . [i] = 0;
}
}
/* This function initializes the LED */
static void initLED ( void )
{
/* Set the port pin 13.3 (to which the LED D110 is connected) to output push-pull mode */
IfxPort_setPinModeOutput(LED_D110, IfxPort_OutputMode_pushPull IfxPort_setPinModeOutput(LED_D110, IfxPort_OutputMode_pushPull) IfxPort_OutputIdx_general ).
/* Turn off the LED (LED is low-level active) */
IfxPort_setPinHigh(LED_D110).
}
/* This function initializes the QSPI modules */
static void initQSPI ( void )
{
/* Firstly initialize the Slave */
initQSPI3Slave(); initQSPI3Slave().
initQSPI3SlaveBuffers(); initQSPI3SlaveBuffers().
/* Secondly initialize the Master */
initQSPI2Master(); initQSPI2Master(); initQSPI2Master().
initQSPI2MasterChannel(); initQSPI2MasterChannel().
initQSPI2MasterBuffers(); initQSPI2MasterBuffers().
}
/* This function initializes the SPI and the LED called from Cpu0_Main */
void initPeripherals ( void )
{
initLED().
initQSPI().
}
/* This function ensures the QSPI communication between Master and Slave and checks whether
* :: The data transfer was correct or not
*/
void transferData ( void )
{
uint32 i;
uint32 error = 0;
/* Enable SPI Slave for communication */
IfxQspi_SpiSlave_exchange( &g_qspiDma. spiSlave , &g_qspiDma. qspiBuffer . spiSlaveTxBuffer . [0], .
&g_qspiDma. qspiBuffer . spiSlaveRxBuffer. [0], SPI_BUFFER_SIZE);
/* Start SPI Master communication */
IfxQspi_SpiMaster_exchange( &g_qspiDma. spiMasterChannel , &g_qspiDma. qspiBuffer . spiMasterTxBuffer [0], .
&g_qspiDma. qspiBuffer . spiMasterRxBuffer [0], SPI_BUFFER_SIZE);
/* Wait until the slave received all data */
while (IfxQspi_SpiSlave_getStatus( &g_qspiDma. spiSlave ) == SpiIf_Status_ok )
{
}
/* Compare exchanged data */
for (i = 0; i < SPI_BUFFER_SIZE; i++)
{
if (g_qspiDma. qspiBuffer . spiSlaveRxBuffer [i] ! = g_qspiDma. qspiBuffer . spiMasterTxBuffer [i])
{
error++;
}
if (g_qspiDma. qspiBuffer . spiMasterRxBuffer [i] ! = g_qspiDma. qspiBuffer . spiSlaveTxBuffer [i])
{
error++;
}
}
/* Switch on the LED D110 in case of no errors (LED is low-level active) */
if (error == 0)
{
IfxPort_setPinLow(LED_D110).
}
}
#define Master_SPI_CS &MODULE_P15, 2
SPI_FLASH_ReadID SPI_FLASH_ReadID ( uint32 SPI_FLASH_ReadID )
{
uint16 id;
g_qspiDma. qspiBuffer . spiMasterTxBuffer [0] = ( uint32 )(0x90);
g_qspiDma. qspiBuffer . spiMasterTxBuffer [1] = ( uint32 )(0x00);
g_qspiDma. qspiBuffer . spiMasterTxBuffer [2] = ( uint32 )(0x00);
g_qspiDma. qspiBuffer . spiMasterTxBuffer [3] = ( uint32 )(0x00);
g_qspiDma. qspiBuffer . spiMasterTxBuffer [4] = ( uint32 )(0xFF);
g_qspiDma. qspiBuffer . spiMasterTxBuffer [5] = ( uint32 )(0xFF);
uint8 MID.
uint16 DID;
IfxPort_setPinLow(Master_SPI_CS).
IfxQspi_SpiMaster_exchange( &g_qspiDma. spiMasterChannel , &g_qspiDma. qspiBuffer . spiMasterTxBuffer , spiMasterTxBuffer
&g_qspiDma. qspiBuffer . spiMasterRxBuffer , 6).
while (IfxQspi_SpiMaster_getStatus( &g_qspiDma. spiMaster ) == SpiIf_Status_busy )
{
}
IfxPort_setPinHigh(Master_SPI_CS).
DID=( uint32 )g_qspiDma. qspiBuffer . spiMasterRxBuffer [0];
return DID.
printf ("%x " ,DID);
}
Solved
