参数资料
型号: DV250501
厂商: Microchip Technology
文件页数: 26/52页
文件大小: 0K
描述: KIT DEV CAN MCP250XX
标准包装: 1
主要目的: 接口,CAN 输入/输出扩展器
嵌入式: 是,MCU,8 位
已用 IC / 零件: MCP25020,MCP25050
主要属性: V2.0B,最高每秒 1Mb 的数据速率
已供物品: 板,线缆,电源,CD,样品
产品目录页面: 685 (CN2011-ZH PDF)
相关产品: MCP25020-I/P-ND - IC I/O EXPANDER CAN 8B 14DIP
MCP25025-I/P-ND - IC I/O EXPANDER CAN 8B 14DIP
MCP25020-E/P-ND - IC I/O EXPANDER CAN 8B 14DIP
MCP25050-I/P-ND - IC I/O EXPANDER CAN 8B 14DIP
MCP25055-I/P-ND - IC I/O EXPANDER CAN 8B 14DIP
MCP25050-E/P-ND - IC I/O EXPANDER CAN 8B 14DIP
其它名称: Q1221418
MCP250XX User’s Guide
2.5
EXPLAINING THE CAN MESSAGES
At this point, the two nodes (PC Node and Node B) should be communicating normally
and a message should be showing up in the Output window (Figure 2-5) at regular
intervals. Pushing GP4, GP5 or GP6 causes other messages to show up in the Output
window, with the status being reflected graphically in the Demo window. Turning the
potentiometers will cause the data fields to change.
This section explains the CAN messages as seen in the Output (Bus Monitor) window.
TABLE 2-1:
CAN MESSAGES EXPLAINED
Identifier
0x008
0x018
Length
3
8
Data
“Write Register” Input Message
(IM)
Read A/D Regs
Explanation
DB0 (address) is either 0x23 or 0x26
(PR1 or PWM2DCH).
“Read A/D Regs“ IRM followed by
OM.
0x280
0x290
0
8
None
Read A/D Regs
On-bus message.
A/D Threshold Detection (R20, POT
and PWM2 duty cycle).
0x7FF
0
None
Command Acknowledge in response
to IM.
DS51266C-page 22
? 2004 Microchip Technology Inc.
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