Other Parts Discussed in Thread: HALCOGEN
Hello, someone has experience with the board TMS570-CAN ( https://www.olimex.com/Products/ARM/TI/TMS570-CAN/ ) as it is with its modules CAN. Created the project:
/** @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: -> TMS570LS20x -> Enable Drivers
*
* @image html can_enabledriver.JPG "Figure: Enable CAN Driver"
*
* @b Step @b 3:
*
* Configure CAN Baudrate:
*
* Navigate: -> TMS570LS20x -> 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: -> TMS570LS20x -> 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,
*
*/
/* 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 */
Data transfer is not, on the findings of the board are connected CAN1 and CAN2 needed. If the connection you remove the code is always waits until a message if the connection is restored CAN1 CAN2 and then the message comes in the receive buffer but not the transmitted data ...
