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update examples

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loovee
2015-04-28 09:38:27 +08:00
parent 5e5dea8169
commit 09fb19398c
7 changed files with 68 additions and 47 deletions
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README.md
+2 -2
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@@ -1,6 +1,6 @@
CAN BUS Shield
---------------------------------------------------------
[![CAN BUS Shield](http://www.seeedstudio.com/depot/images/product/canbus.jpg)](http://www.seeedstudio.com/depot/wifi-bee-v20-p-1637.html)
[![CAN BUS Shield](http://www.seeedstudio.com/depot/images/1130300211.jpg)](http://www.seeedstudio.com/depot/wifi-bee-v20-p-1637.html)
@@ -138,7 +138,7 @@ For more information, please refer to [wiki page](http://www.seeedstudio.com/wik
----
This software is written by loovee ([luweicong@seeedstudio.com](luweicong@seeedstudio.com "luweicong@seeedstudio.com")) for seeed studio<br>
This software is written by loovee ([luweicong@seeed.cc](luweicong@seeed.cc "luweicong@seeed.cc")) for seeed studio<br>
and is licensed under [The MIT License](http://opensource.org/licenses/mit-license.php). Check License.txt for more information.<br>
Contributing to this software is warmly welcomed. You can do this basically by<br>
examples/receive_check/receive_check.ino
+7 -6
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@@ -7,13 +7,11 @@
#include "mcp_can.h"
unsigned char Flag_Recv = 0;
unsigned char len = 0;
unsigned char buf[8];
char str[20];
// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;
MCP_CAN CAN(10); // Set CS to pin 10
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
void setup()
{
@@ -37,6 +35,9 @@ START_INIT:
void loop()
{
unsigned char len = 0;
unsigned char buf[8];
if(CAN_MSGAVAIL == CAN.checkReceive()) // check if data coming
{
CAN.readMsgBuf(&len, buf); // read data, len: data length, buf: data buf
examples/receive_interrupt/receive_interrupt.ino
+31 -24
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@@ -5,10 +5,14 @@
#include <SPI.h>
#include "mcp_can.h"
MCP_CAN CAN(10); // Set CS to pin 10
// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
unsigned char Flag_Recv = 0;
unsigned char flagRecv = 0;
unsigned char len = 0;
unsigned char buf[8];
char str[20];
@@ -17,7 +21,7 @@ void setup()
{
Serial.begin(115200);
START_INIT:
START_INIT:
if(CAN_OK == CAN.begin(CAN_500KBPS)) // init can bus : baudrate = 500k
{
@@ -30,36 +34,39 @@ START_INIT:
delay(100);
goto START_INIT;
}
attachInterrupt(0, MCP2515_ISR, FALLING); // start interrupt
}
void MCP2515_ISR()
{
Flag_Recv = 1;
flagRecv = 1;
}
void loop()
{
if(Flag_Recv) { // check if get data
Flag_Recv = 0; // clear flag
// iterate over all pending messages
// If either the bus is saturated or the MCU is busy,
// both RX buffers may be in use and reading a single
// message does not clear the IRQ conditon.
while (CAN_MSGAVAIL == CAN.checkReceive()) {
// read data, len: data length, buf: data buf
CAN.readMsgBuf(&len, buf);
// print the data
for(int i = 0; i<len; i++) {
Serial.print(buf[i]);Serial.print("\t");
}
Serial.println();
}
}
if(flagRecv)
{ // check if get data
flagRecv = 0; // clear flag
// iterate over all pending messages
// If either the bus is saturated or the MCU is busy,
// both RX buffers may be in use and reading a single
// message does not clear the IRQ conditon.
while (CAN_MSGAVAIL == CAN.checkReceive())
{
// read data, len: data length, buf: data buf
CAN.readMsgBuf(&len, buf);
// print the data
for(int i = 0; i<len; i++)
{
Serial.print(buf[i]);Serial.print("\t");
}
Serial.println();
}
}
}
/*********************************************************************************************************
examples/send/send.ino
+5 -1
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@@ -2,7 +2,11 @@
#include <mcp_can.h>
#include <SPI.h>
MCP_CAN CAN(10); // Set CS to pin 10
// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
void setup()
{
examples/set_mask_filter_recv/set_mask_filter_recv.ino
+17 -13
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@@ -6,10 +6,14 @@
#include <SPI.h>
#include "mcp_can.h"
MCP_CAN CAN(9); // Set CS to pin 10
// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
unsigned char Flag_Recv = 0;
unsigned char flagRecv = 0;
unsigned char len = 0;
unsigned char buf[8];
char str[20];
@@ -18,7 +22,7 @@ void setup()
{
Serial.begin(115200);
START_INIT:
START_INIT:
if(CAN_OK == CAN.begin(CAN_500KBPS)) // init can bus : baudrate = 500k
{
@@ -31,23 +35,23 @@ START_INIT:
delay(100);
goto START_INIT;
}
attachInterrupt(0, MCP2515_ISR, FALLING); // start interrupt
/*
* set mask, set both the mask to 0x3ff
*/
CAN.init_Mask(0, 0, 0x3ff); // there are 2 mask in mcp2515, you need to set both of them
CAN.init_Mask(1, 0, 0x3ff);
/*
* set filter, we can receive id from 0x04 ~ 0x09
*/
CAN.init_Filt(0, 0, 0x04); // there are 6 filter in mcp2515
CAN.init_Filt(1, 0, 0x05); // there are 6 filter in mcp2515
CAN.init_Filt(2, 0, 0x06); // there are 6 filter in mcp2515
CAN.init_Filt(3, 0, 0x07); // there are 6 filter in mcp2515
CAN.init_Filt(4, 0, 0x08); // there are 6 filter in mcp2515
@@ -57,15 +61,15 @@ START_INIT:
void MCP2515_ISR()
{
Flag_Recv = 1;
flagRecv = 1;
}
void loop()
{
if(Flag_Recv) // check if get data
if(flagRecv) // check if get data
{
Flag_Recv = 0; // clear flag
flagRecv = 0; // clear flag
CAN.readMsgBuf(&len, buf); // read data, len: data length, buf: data buf
Serial.println("\r\n------------------------------------------------------------------");
examples/set_mask_filter_send/set_mask_filter_send.ino
+5 -1
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@@ -4,7 +4,11 @@
#include <mcp_can.h>
#include <SPI.h>
MCP_CAN CAN(10); // Set CS to pin 10
// the cs pin of the version after v1.1 is default to D9
// v0.9b and v1.0 is default D10
const int SPI_CS_PIN = 9;
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
void setup()
{
mcp_can_dfs.h
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@@ -5,6 +5,7 @@
Author:Loovee
Contributor: Cory J. Fowler
2014-1-16
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either