The question of CAN Initialization(the function of dcaninit()).

HanSeoung Lyoo

Intellectual 320 points

Other Parts Discussed in Thread: HALCOGEN

Hi...

I have two questions.

RM48 have a three of CAN modules. each of CAN have 64 mailBoxs(SPNU499).

HalCoGen generated a Code of can.c(or dcan.c).

File of can.c have a function of dcaninit() .

The function of dcaninit() initializes dcan1 and dcan2 mailBoxs1~64, But initializes dcan3 mailBoxs1~32.

1. No Problem of initializing of dcan3 mailBoxs1~32 ?

2. I have used just to six mailboxs(dcan1,2 and 3 of mailBox1,2). So, Does dcaninit() initializes six mailboxs ? or initializes 64*3 mailboxs ?

Thank you, TI.

over 14 years ago

0 Sunil Oak over 14 years ago

TI__Mastermind 49120 points

Hello,

The DCAN3 module on the LS20x series of microcontrollers only has 32 mailboxes. This is carried over to the RM48x HALCoGen as well, which is a mistake. We will correct this in an upcoming update to this tool. The DCAN3 on RM4x also supports 64 mailboxes.

HALCoGen will initialize all mailboxes on each of the DCANx modules. For DCAN3 it only initializes 32 mailboxes out of 64.

Regards, Sunil