没有合适的资源？快使用搜索试试~ 我知道了~

首页RH850 CAN Configuration (CAN FD Mode) Rev.1.00.pdf

RH850 CAN Configuration (CAN FD Mode) Rev.1.00.pdf

CAN

需积分: 1 14 下载量 99 浏览量更新于2023-10-19 1 收藏 2.12MB PDF 举报

身份认证购VIP最低享 7 折!

领优惠券(最高得80元）

试读

69页

RH850 CAN 配置流程资料

资源详情

资源推荐

Application Note

R01AN6027EJ0100 Rev.1.0 Page

of 66

May 10, 2018

RH850 Series

CAN Configuration（CAN FD Mode）

Summary

This document describes an example of a procedure for setting CAN Configuration using the RH850 series. Please

refer to the notes in the latest user's manual hardware edition for the settings of each register.

Operation Confirmed Devices

This document applies to the RH850 series.

The variables described in the text are as follows.

Table 1-1 Target Devices and Variables

Variable

Target MCU

RH850/E2x

RH850/E1M-S2

RH850/P1M-E

RS-CAN FD channel number

0~4

0~3

0~2

GAFLIDj, GAFLMj, GAFLP0j,

GAFLP1j Register numbers

0~15

Transmit/Receive FIFO buffer

number

0~14

0~11

0~8

Receive FIFO buffer number

0~7

Receive buffer number

0~79

0~63

0~47

Transmit buffer number

0~79

0~63

0~47

RAM test number

0~63

GAFLCFGi、GTINTSTSi

Number of each status register

0~2

0,1

The functions marked with "★" in the text are applicable to cases where 2 or more channels are installed.

In the text, CFD is omitted from the register names.

R01AN6027EJ0100

Rev.1.0

RH850 Series CAN Configuration (CAN FD Mode)

R01AN6027EJ0100 Rev.1.0 Page

of 66

May 10, 2018

Contents

1. CAN Configuration ........................................................................................................... 3

2. CAN State (Mode) Transition .......................................................................................... 10

3. Communication Speed ................................................................................................... 19

4. Global Function .............................................................................................................. 23

5. Receive Rule Table ........................................................................................................ 30

6. Buffer, FIFO Buffer ......................................................................................................... 39

7. Global Error Interrupt ...................................................................................................... 50

8. Channel Function ........................................................................................................... 52

9. CAN-related Interrupt ..................................................................................................... 60

10. Transmitter Delay Compensation (Only in CAN FD Mode) ................................................... 62

11. Precautions for Processing Flow .................................................................................... 63

12. Appendix ........................................................................................................................ 65

RH850 Series CAN Configuration (CAN FD Mode)

R01AN6027EJ0100 Rev.1.0 Page

of 66

May 10, 2018

1. CAN Configuration

In CAN configuration, set the functions required for CAN communication. Perform the configuration when resets

MC, detects BUS failures, starts and restarts CAN communication after WAKEUP.

The stats available when performing CAN configuration are shown below. For CAN State (Mode), refer to “Section

2, CAN State (Mode) Transition”.

• After CAN module enable (the CAN0EN bit in the PER2 register is ''1'')

• Global reset mode

• Channel reset mode

• Channel halt mode

The required functions when setting CAN configuration are shown below. For details of each process, refer to the

following chapters.

• CAN state (mode) transition

• Communication speed

• Global function

• Receive rule table

• Buffer

• Global error interrupt

• Channel function

RH850 Series CAN Configuration (CAN FD Mode)

R01AN6027EJ0100 Rev.1.0 Page

of 66

May 10, 2018

1.1 CAN Configuration after CAN Module Enable

1.1.1 CAN Configuration after CAN Module Enable

Perform the initialization of entire RS-CANFD modules after resetting MCU.

1.1.2 Setting Procedures of CAN Configuration after CAN Module Enable

Figure 1-1 and Figure 1-2 shows the procedure of CAN Configuration after CAN Module Enable

【Note】

After resetting the MCU, do not access to CAN for RAM before initializing the CAN RAM.

(the CAN0EN bit of the PER2 register is ''1'')

If you change the global mode (the GSLPR bit of the GCTR register, GMDC [1: 0] bit), check that

the mode is switched in the GSTS register. Do not change the GMDC[1:0] bit until the mode is

switched.

Rewrite the interface selection bit (RCMC bit) of GRMCFG register in global test mode only.

If you change the channel mode (the GSLPR bit of the CmCTR register, GHMDC [1: 0] bit), check

that the mode is switched in the CmSTS register. Do not change the GHMDC[1:0] bit until the

mode is switched.

Figure 1-1 Procedure of CAN Configuration after resetting MCU 1/2

START

Transition from Global Stop Mode

to Global Reset Mode

Initialized

CAN RAM?

Yes

Transitioned

to Global Reset Mode?

Transition from Channel Stop Mode

to Channel Reset Mode

Transitioned

to Channel Reset Mode?

Yes

CAN port setting

RH850 Series CAN Configuration (CAN FD Mode)

R01AN6027EJ0100 Rev.1.0 Page

of 66

May 10, 2018

【Note】

For processes of each functions, refer to the following chapters.

If you change the global mode (the GSLPR bit of the GCTR register, GMDC [1: 0] bit), check that

the mode is switched in the GSTS register. Do not change the GMDC[1:0] bit until the mode is

switched.

If you change the channel mode (the GSLPR bit of the CmCTR register, GHMDC [1: 0] bit), check

that the mode is switched in the CmSTS register. Do not change the GHMDC[1:0] bit until the

mode is switched.

After a transitions to channel communication mode, when 11 consecutive recessive bits have been

detected, communication is ready (the COMSTS flag in the CmSTS register is “1”) and

transmission and reception are enabled on the CAN network as an active node. At this time,

transmission and reception of messages can be started.

Figure 1-2 Procedure of CAN Configuration after resetting MCU 2/2

Global error interrupt setting

Channel function setting

CAN-related interrupt setting

Receive rule setting

Buffer setting

Global function setting

Communication speed setting

END

Transition to channel communication mode

Yes

Transitioned

to global operation mode?

Yes

Transitioned to channel

communication mode?*

3, 4

Transition to global function mode

剩余68页未读，继续阅读

粉丝: 638
资源: 8

上传资源快速赚钱

我的内容管理收起

我的资源快来上传第一个资源

我的收益

登录查看自己的收益

我的积分登录查看自己的积分

我的C币登录后查看C币余额

我的收藏

我的下载

下载帮助

会员权益专享

RH850 CAN Configuration (CAN FD Mode) Rev.1.00.pdf

RH850 Gateway Procedure (CAN FD Mode) Rev.1.00.pdf

RH850 Test Mode Procedure (CAN FD Mode) Rev.1.00.pdf

RH850 CAN Transmit Procedure (CAN FD Mode) Rev.1.00.pdf

rh850 can配置

rh850 can gateway

rh850 can接受fifo

rh850 can总线发送数据失败

生成瑞萨rh850can通信初始化代码

瑞萨rh850can通信怎么初始化

RH850F1L为例各CAN寄存器配置的详细代码及分析

以RH850F1L为例学习各CAN寄存器配置

RH850 CSIGnDLS这个寄存器有什么用

RH850mcal怎么生成代码

rh850 mcal如何集成到vector中

RH850的内核资料有哪些

rh850 democode

rh850 多核 配置

rh850 datasheet

瑞萨rh850内核架构

rh850 csih csig

会员权益专享

最新资源

rh850 多核配置