RL78/F24 -RS CAN FD configuration

Hello,

Thanks for reaching out to Renesas Community.

What does 'R_CAN_SetConfig' return ?

Please find the documentation of RS-CANFD module:

https://www.renesas.com/us/en/document/apn/rl78f24-rs-canfd-lite-module-software-integration-system

and application note on configuration, transmission, reception of CAN:

https://www.renesas.com/us/en/document/apn/rl78f24-rs-canfd-lite-configuration-reception-and-transmission-rev100?r=1552481

Could you share some of your initialization code?

Regards

This is the program  I tried for CAN transmission.

I referred the documents mentioned above ,R_CAN_SetConfig() does contain the global setting and the different mode setting of CAN.This functions checks if the global,channel mode from sleep mode is converted to reset mode if true the configuration like communication speed ,rx rule etc is done , but in my case the mode conversion condition is false .

#include "r_rscanfd_rl78_if.h"
#include "r_rscanfd_rl78_config.h"
#include "r_rscanfd_rl78_private.h"

void main(void);

st_can_tx_frame_t tx;
volatile uint32_t result,a;
void main(void)
{

//tx header
tx.Head.Bits.ID=123;
tx.Head.Bits.THLEN=0;  //tx history not stored
tx.Head.Bits.RTR=0;//data frame
tx.Head.Bits.IDE=0; //std frame
tx.Head.Bits.DLC=8; //data lenfth code =4
tx.Head.Bits.FDCTR=0X6; //NO ESI used
tx.Head.Word[0]=4;  //word access    

tx.Data.DB[0]=1;

/*start api func*/
R_CAN_Create();
R_CAN_SetConfig();
R_CAN_StartComm();
R_CAN_SendByTXMB(CAN_TXBUF0,&tx);
result=R_CAN_GetTXMBResult( CAN_TXBUF0);

while(1)
{
}

}

This is the program  I tried for CAN transmission.

I referred the documents mentioned above ,R_CAN_SetConfig() does contain the global setting and the different mode setting of CAN.This functions checks if the global,channel mode from sleep mode is converted to reset mode if true the configuration like communication speed ,rx rule etc is done , but in my case the mode conversion condition is false .

#include "r_rscanfd_rl78_if.h"
#include "r_rscanfd_rl78_config.h"
#include "r_rscanfd_rl78_private.h"

void main(void);

st_can_tx_frame_t tx;
volatile uint32_t result,a;
void main(void)
{

//tx header
tx.Head.Bits.ID=123;
tx.Head.Bits.THLEN=0;  //tx history not stored
tx.Head.Bits.RTR=0;//data frame
tx.Head.Bits.IDE=0; //std frame
tx.Head.Bits.DLC=8; //data lenfth code =4
tx.Head.Bits.FDCTR=0X6; //NO ESI used
tx.Head.Word[0]=4;  //word access    

tx.Data.DB[0]=1;

/*start api func*/
R_CAN_Create();
R_CAN_SetConfig();
R_CAN_StartComm();
R_CAN_SendByTXMB(CAN_TXBUF0,&tx);
result=R_CAN_GetTXMBResult( CAN_TXBUF0);

while(1)
{
}

}