Tool/software: Code Composer Studio
Hello,
I'm try to use MibSPI with DMA,it didn't work.
here is my code and project.
/** @file sys_main.c
* @brief Application main file
* @date 07-July-2017
* @version 04.07.00
*
* This file contains an empty main function,
* which can be used for the application.
*/
/*
* Copyright (C) 2009-2016 Texas Instruments Incorporated - www.ti.com
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* USER CODE BEGIN (0) */
/* USER CODE END */
/* Include Files */
#include "sys_common.h"
/* USER CODE BEGIN (1) */
#include <mibspi.h>
#include <sys_dma.h>
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
* @note This function is empty by default.
*
* This function is called after startup.
* The user can use this function to implement the application.
*/
/* USER CODE BEGIN (2) */
#define D_SIZE 64
uint16 tx_data[D_SIZE] = {0};
uint16 rx_data[D_SIZE] = {0};
g_dmaCTRL g_dmaCTRL_tx;
g_dmaCTRL g_dmaCTRL_rx;
/* USER CODE END */
int main(void)
{
/* USER CODE BEGIN (3) */
sint32 i;
for (i = 0; i < D_SIZE; i++)
{
tx_data[i] = i;
}
mibspiInit();
mibspiEnableLoopback(mibspiREG1, Analog_Lbk);
dmaEnable();
//mibspiSetData(mibspiREG1, 0, tx_data);
dmaReqAssign(DMA_CH0, 1u);
g_dmaCTRL_tx.SADD = (uint32)(&tx_data);
g_dmaCTRL_tx.DADD = (uint32)(&(mibspiRAM1->tx[0]));
g_dmaCTRL_tx.CHCTRL = DMA_CH0;
g_dmaCTRL_tx.FRCNT = 1u;
g_dmaCTRL_tx.ELCNT = D_SIZE;
g_dmaCTRL_tx.ELDOFFSET = 4u;
g_dmaCTRL_tx.ELSOFFSET = 0u;
g_dmaCTRL_tx.FRDOFFSET = 0u;
g_dmaCTRL_tx.FRSOFFSET = 0u;
g_dmaCTRL_tx.PORTASGN = 4u;
g_dmaCTRL_tx.RDSIZE = ACCESS_16_BIT;
g_dmaCTRL_tx.WRSIZE = ACCESS_16_BIT;
g_dmaCTRL_tx.TTYPE = FRAME_TRANSFER;
g_dmaCTRL_tx.ADDMODERD = ADDR_INC1;
g_dmaCTRL_tx.ADDMODEWR = ADDR_OFFSET;
g_dmaCTRL_tx.AUTOINIT = AUTOINIT_ON;
dmaSetCtrlPacket(DMA_CH0, g_dmaCTRL_tx);
dmaSetChEnable(DMA_CH0, DMA_HW);
mibspiREG1->DMACTRL[0] |= (((1 << 4) | 0) << 16);
mibspiREG1->DMACTRL[0] |= 0x8000C000u;
mibspiREG1->DMACTRL[0] |= (0 << 8) |(0 << 24);
mibspiTransfer(mibspiREG1,0 );
while (!(mibspiIsTransferComplete(mibspiREG1,0))) {}
mibspiGetData(mibspiREG1, 0, rx_data);
while (true) {}
/* USER CODE END */
//return 0;
}
/* USER CODE BEGIN (4) */
/* USER CODE END */
