This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Other Parts Discussed in Thread: HALCOGEN
请教一个问题，包是我写的基于TMS570ls12x的launchpad的一个简单的can1发送，在资料查明can1的RX和TX分别是J10的38和39孔，我用杜邦线与CANalyst-Ⅱ相连，如何用USB_CAN TOOL查看接收的数据，发现并没有预想的数据发送过来，请教各位大神帮我分析一下原因，谢谢~
自己尝试测试，分析仪没有问题，分析仪与USB_CAN TOOL连接也没有问题，请各位大神赐教test_can.rar
TMS570ls12x是有相关的CAN通信例程的，您可以参考下
/** @example example_canCommunication.c
* This is an example which describes the steps to create an example application which
* configures two can nodes 1 and 2 and starts a communication with a sample data chunk.
* CAN 1 and CAN2 must be part of CAN network
*
*
* @b Step @b 1:
*
* Create a new project.
*
* Navigate: -> File -> New -> Project
*
* @image html example_createProject.jpg "Figure: Create a new Project"
*
* @b Step @b 2:
*
* Configure driver code generation:
* - Enable can driver
* - Disable others
*
* Navigate: -> TMS570LSxx /RM4 -> Enable Drivers
*
* @image html can_enabledriver.JPG "Figure: Enable CAN Driver"
*
* @b Step @b 3:
*
* Configure CAN Baudrate:
*
* Navigate: -> TMS570LSxx /RM4 -> CAN
*
* @image html can1baud.JPG "Figure: CAN1 BaudRate Configuration"
* @image html can2baud.JPG "Figure: CAN2 BaudRate Configuration"
*
* @b Step @b 4:
*
* Configure CAN MessageBox:
*
* - Configure CAN1 , MessageBox 1 -- Activate and Enable TX
* - Configure CAN2 , MessageBox 1 -- Activate and Enable RX
*
* Navigate: -> TMS570LSxx /RM4 -> CAN
*
* @image html canCommunication1.JPG "Figure: CAN1 MBox Configuration"
* @image html canCommunication2.JPG "Figure: CAN2 MBox Configuration"
*
* @b Step @b 5:
*
* Copy the source code below into your sys_main.c or replace sys_main.c with this file.
*
* The example file can also be found in the examples folder: ../HALCoGen/examples
*
* @note HALCoGen generates an empty main function in sys_main.c,
*
*/
/*
* Copyright (C) 2009-2015 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"
#include "system.h"
/* USER CODE BEGIN (1) */
#include "can.h"
/* Include ESM header file - types, definitions and function declarations for system driver */
#include "esm.h"
#define D_SIZE 9
uint8 tx_data[D_SIZE] = {'H','E','R','C','U','L','E','S','\0'};
uint8 rx_data[D_SIZE] = {0};
uint32 error = 0;
uint32 checkPackets(uint8 *src_packet,uint8 *dst_packet,uint32 psize);
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
*
*/
/* USER CODE BEGIN (2) */
/* USER CODE END */
void main(void)
{
/* USER CODE BEGIN (3) */
/* initialize can 1 and 2 */
canInit(); /* can1 -> can2 */
/* transmit on can1 */
canTransmit(canREG1, canMESSAGE_BOX1, tx_data);
/*... wait until message receive on can2 */
while(!canIsRxMessageArrived(canREG2, canMESSAGE_BOX1));
canGetData(canREG2, canMESSAGE_BOX1, rx_data); /* receive on can2 */
/* check received data patterns */
error = checkPackets(&tx_data[0],&rx_data[0],D_SIZE);
/* ... run forever */
while(1);
/* USER CODE END */
}
/* USER CODE BEGIN (4) */
/** @fn checkPackets(uint8 *src_packet,uint8 *dst_packet,uint32 psize)
* @brief check two buffers and report error
*
*/
uint32 checkPackets(uint8 *src_packet,uint8 *dst_packet,uint32 psize)
{
uint32 err=0;
uint32 cnt=psize;
while(cnt--)
{
if((*src_packet++) != (*dst_packet++))
{
err++; /* data error */
}
}
return (err);
}
/* USER CODE END */
/** @example example_canIntCommunication.c
* This example code configures two CAN nodes and emulates a data transfer
* from CAN1 to CAN2.
*
* node1: CAN1 [MSG BOX 1 (ID1)]-> TX
* node2: CAN2 [MSG BOX 1 (ID1)]<- RX
*
* @b Step @b 1:
*
* Create a new project.
*
* Navigate: -> File -> New -> Project
*
* @image html example_createProject.jpg "Figure: Create a new Project"
*
* @b Step @b 2:
*
* Configure driver code generation:
* - Enable CAN driver
* - Disable others
*
* Navigate: -> TMS570LSxx /RM4 -> Enable Drivers
*
* @image html can_enabledriver.jpg "Figure: CAN 1,2 Driver Enable"
*
* @b Step @b 3:
*
* Configure CAN Message Box:
* - Configure CAN1 Message box 1 as transmit
* Navigate: -> TMS570LSxx /RM4 -> CAN
*
* @image html can1box.jpg "Figure: CAN1 MBox Configuration"
*
* - Configure CAN2 Message box 1 as receive
*
* @image html can2box.jpg "Figure: CAN2 MBox Configuration"
*
* - Enable CAN1 High level interrupt and CAN2 High level interrupt
*
* @b Step @b 4:
*
* Enable CAN interrupts in VIM:
*
* Navigate: -> TMS570LSxx /RM4 -> VIM
*
* @image html can1_Int.jpg "Figure: VIM Configuration"
* @image html can2_Int.jpg "Figure: VIM Configuration"
*
* @b Step @b 5:
*
* Copy the source code below into your sys_main.c (or) replace sys_main.c with this file.
* Copy dma.c and dma.h into your application.
*
* Execution:
* The CAN1 and CAN2 communication line needs to be connected on to the live CAN bus.
*
* The example file can also be found in the examples folder: ../HALCoGen/examples
*
* @note HALCoGen generates an enpty main function in sys_main.c.
*
*/
/*
* Copyright (C) 2009-2015 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"
#include "system.h"
/* USER CODE BEGIN (1) */
#include "can.h"
#include "esm.h"
#include "sys_core.h"
#define D_COUNT 8
uint32 cnt=0, error =0, tx_done =0;
uint8 tx_data[D_COUNT][8] = {0};
uint8 rx_data[D_COUNT][8] = {0};
uint8 *tx_ptr = &tx_data[0][0];
uint8 *rx_ptr = &rx_data[0][0];
uint8 *dptr=0;
void dumpSomeData();
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
*
*/
/* USER CODE BEGIN (2) */
/* USER CODE END */
void main(void)
{
/* USER CODE BEGIN (3) */
/* enable irq interrupt in Cortex R4 */
_enable_interrupt_();
/** - writing a random data in RAM - to transmit */
dumpSomeData();
/** - configuring CAN1 MB1,Msg ID-1 to transmit and CAN2 MB1 to receive */
canInit();
/** - enabling error interrupts */
canEnableErrorNotification(canREG1);
canEnableErrorNotification(canREG2);
/** - starting transmission */
for(cnt=0;cnt<D_COUNT;cnt++)
{
canTransmit(canREG1, canMESSAGE_BOX1, tx_ptr); /* transmitting 8 different chunks 1 by 1 */
while(tx_done == 0){}; /* ... wait until transmit request is through */
tx_done=0;
tx_ptr +=8; /* next chunk ...*/
}
/** - check the received data with the one that was transmitted */
tx_ptr = &tx_data[0][0];
rx_ptr = &rx_data[0][0];
for(cnt=0;cnt<63;cnt++)
{
if(*tx_ptr++ != *rx_ptr++)
{
error++; /* data error */
}
}
while(1){}; /* wait forever after tx-rx complete. */
/* USER CODE END */
}
/* USER CODE BEGIN (4) */
/* writing some data to ram */
void dumpSomeData()
{
uint32 tmp = 0x11;
cnt = (D_COUNT*8)-1;
dptr = &tx_data[0][0];
*dptr = tmp;
while(cnt--)
{
tmp = *dptr++;
*dptr = tmp + 0x11;
}
}
/* can interrupt notification */
/* Note-You need to remove canMessageNotification from notification.c to avoid redefinition */
void canMessageNotification(canBASE_t *node, uint32 messageBox)
{
/* node 1 - transfer request */
if(node==canREG1)
{
tx_done=1; /* confirm transfer request */
}
/* node 2 - receive complete */
if(node==canREG2)
{
while(!canIsRxMessageArrived(canREG2, canMESSAGE_BOX1));
canGetData(canREG2, canMESSAGE_BOX1, rx_ptr); /* copy to RAM */
rx_ptr +=8;
}
/* Note: since only message box 1 is used on both nodes we dont check it here.*/
}
/* USER CODE END */
/** @example example_canIntCommunication.c* This example code configures two CAN nodes and emulates a data transfer* from CAN1 to CAN2.* * node1: CAN1 [MSG BOX 1 (ID1)]-> TX* node2: CAN2 [MSG BOX 1 (ID1)]<- RX* * @b Step @b 1:** Create a new project.** Navigate: -> File -> New -> Project** @image html example_createProject.jpg "Figure: Create a new Project"** @b Step @b 2:** Configure driver code generation: * - Enable CAN driver* - Disable others** Navigate: -> TMS570LSxx /RM4 -> Enable Drivers** @image html can_enabledriver.jpg "Figure: CAN 1,2 Driver Enable"** @b Step @b 3:** Configure CAN Message Box: * - Configure CAN1 Message box 1 as transmit* Navigate: -> TMS570LSxx /RM4 -> CAN** @image html can1box.jpg "Figure: CAN1 MBox Configuration"** - Configure CAN2 Message box 1 as receive** @image html can2box.jpg "Figure: CAN2 MBox Configuration"** - Enable CAN1 High level interrupt and CAN2 High level interrupt ** @b Step @b 4:** Enable CAN interrupts in VIM: ** Navigate: -> TMS570LSxx /RM4 -> VIM** @image html can1_Int.jpg "Figure: VIM Configuration"* @image html can2_Int.jpg "Figure: VIM Configuration"** @b Step @b 5:** Copy the source code below into your sys_main.c (or) replace sys_main.c with this file.* Copy dma.c and dma.h into your application.** Execution:* The CAN1 and CAN2 communication line needs to be connected on to the live CAN bus.* * The example file can also be found in the examples folder: ../HALCoGen/examples** @note HALCoGen generates an enpty main function in sys_main.c. **/
/* * Copyright (C) 2009-2015 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"#include "system.h"
/* USER CODE BEGIN (1) */#include "can.h"#include "esm.h"#include "sys_core.h"
#define D_COUNT 8
uint32 cnt=0, error =0, tx_done =0;uint8 tx_data[D_COUNT][8] = {0};uint8 rx_data[D_COUNT][8] = {0};uint8 *tx_ptr = &tx_data[0][0];uint8 *rx_ptr = &rx_data[0][0];uint8 *dptr=0;
void dumpSomeData();/* USER CODE END */
/** @fn void main(void)* @brief Application main function**/
/* USER CODE BEGIN (2) *//* USER CODE END */
void main(void){/* USER CODE BEGIN (3) */
/* enable irq interrupt in Cortex R4 */ _enable_interrupt_();
/** - writing a random data in RAM - to transmit */ dumpSomeData(); /** - configuring CAN1 MB1,Msg ID-1 to transmit and CAN2 MB1 to receive */ canInit();
/** - enabling error interrupts */ canEnableErrorNotification(canREG1); canEnableErrorNotification(canREG2); /** - starting transmission */ for(cnt=0;cnt<D_COUNT;cnt++) { canTransmit(canREG1, canMESSAGE_BOX1, tx_ptr); /* transmitting 8 different chunks 1 by 1 */ while(tx_done == 0){}; /* ... wait until transmit request is through */ tx_done=0; tx_ptr +=8; /* next chunk ...*/ } /** - check the received data with the one that was transmitted */ tx_ptr = &tx_data[0][0]; rx_ptr = &rx_data[0][0]; for(cnt=0;cnt<63;cnt++) { if(*tx_ptr++ != *rx_ptr++) { error++; /* data error */ } }
while(1){}; /* wait forever after tx-rx complete. */ /* USER CODE END */ }
/* USER CODE BEGIN (4) *//* writing some data to ram */void dumpSomeData(){ uint32 tmp = 0x11; cnt = (D_COUNT*8)-1; dptr = &tx_data[0][0]; *dptr = tmp;
while(cnt--) { tmp = *dptr++; *dptr = tmp + 0x11; }}
/* can interrupt notification *//* Note-You need to remove canMessageNotification from notification.c to avoid redefinition */void canMessageNotification(canBASE_t *node, uint32 messageBox){ /* node 1 - transfer request */ if(node==canREG1) { tx_done=1; /* confirm transfer request */ }
/* node 2 - receive complete */ if(node==canREG2) { while(!canIsRxMessageArrived(canREG2, canMESSAGE_BOX1)); canGetData(canREG2, canMESSAGE_BOX1, rx_ptr); /* copy to RAM */ rx_ptr +=8; }
/* Note: since only message box 1 is used on both nodes we dont check it here.*/}/* USER CODE END */
