hohai
Post By：2009-12-27 14:44:00 [只看該作者]
// CANTest.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "lcd_api.h"
#include "EM9260_CAN.h"
#include "EM9260_Key.h"
static void CALLBACK OnReceive( );
static void CALLBACK OnError( );
class CEM9260_CAN m_CAN;
int type;
ULONG ReceiveLen;
ULONG SendLen;
unsigned char TxBuf[13];
int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
// TODO: Place code here.
BOOL bResult;
HANDLE hKey;
HANDLE hKeyEvent;
ULONG WaitReturn;
int KeyCode;
char str[100];
UCHAR Baud;
UCHAR Filter[9];
int i1;
// Start & Init LCD
type = LCD_Init( LCD_AUTO );
if( type>0 )
{
LCD_WriteString( 8, 0, "CANTest v1.0", 1 );
}
// fill AcceptanceFilter<|>s parameters
Filter[0] = 0;
Filter[1] = 0x5f;
Filter[2] = 0;
Filter[3] = 0x1f;
Filter[4] = 0xff;
Filter[5] = 0xff;
Filter[6] = 0xff;
Filter[7] = 0xff;
Filter[8] = DUAL_FILTER_MODE;
Baud = CAN_TIMING_250K;
bResult = m_CAN.StartCAN( 1, Baud, (BYTE*)Filter, 9 );
if( bResult==FALSE )
return -1;
m_CAN.OnRead = OnReceive;
m_CAN.OnError = OnError;
ReceiveLen = 0;
SendLen = 0;
TxBuf[0]=0x42;
TxBuf[1]=0x1f;
TxBuf[2]=0x00;
for( )
{
if( type>0 ) //沒(méi)收到CAN數(shù)據(jù)時(shí)，在此處死循環(huán)
{
sprintf( str, "0x%04x", KeyCode );
LCD_WriteString( 8, 48, str, 1 );
}
}
m_CAN.StopCAN( );
return 0;
}
void CALLBACK OnReceive( )
{
char RxBuf[14];
char str[200];
UCHAR dlen;
memcpy( RxBuf, &m_CAN.RxMFrame, 13 );
dlen = RxBuf[0]&0x0f;
if( RxBuf[0]&0x80 ) // 擴(kuò)展幀
{
m_CAN.WriteCAN( (BYTE*)RxBuf, dlen+5 );
}
else // 標(biāo)準(zhǔn)幀
{
m_CAN.WriteCAN( (BYTE*)RxBuf, dlen+3 );
}
ReceiveLen += dlen;
SendLen += dlen;
if( type>0 )
{
sprintf( str, "RCV: %ld ", ReceiveLen );
LCD_WriteString( 8, 16, str, 1 );
sprintf( str, "Send: %ld ", SendLen );
LCD_WriteString( 8, 32, str, 1 );
}
}
以上為公司提供的CANTest例程函數(shù)
問(wèn)題如下：
沒(méi)收到CAN數(shù)據(jù)時(shí)，在主線程標(biāo)注處死循環(huán)
收到一幀CAN數(shù)據(jù)，單步調(diào)試，執(zhí)行CANOnReceive( )
在執(zhí)行CANOnReceive( )響應(yīng)完CAN線程后，CAN線程應(yīng)該掛起。此時(shí)應(yīng)該跳至主線程（文中標(biāo)注處）死循環(huán)執(zhí)行主線程。但單步調(diào)試，顯示”All Threads are suspended“
公司寫的CAN線程處理函數(shù)，響應(yīng)CAN線程時(shí)，是否將主線程人為掛起？還是其他原因？
//
#include "stdafx.h"
#include "lcd_api.h"
#include "EM9260_CAN.h"
#include "EM9260_Key.h"
static void CALLBACK OnReceive( );
static void CALLBACK OnError( );
class CEM9260_CAN m_CAN;
int type;
ULONG ReceiveLen;
ULONG SendLen;
unsigned char TxBuf[13];
int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
// TODO: Place code here.
BOOL bResult;
HANDLE hKey;
HANDLE hKeyEvent;
ULONG WaitReturn;
int KeyCode;
char str[100];
UCHAR Baud;
UCHAR Filter[9];
int i1;
// Start & Init LCD
type = LCD_Init( LCD_AUTO );
if( type>0 )
{
LCD_WriteString( 8, 0, "CANTest v1.0", 1 );
}
// fill AcceptanceFilter<|>s parameters
Filter[0] = 0;
Filter[1] = 0x5f;
Filter[2] = 0;
Filter[3] = 0x1f;
Filter[4] = 0xff;
Filter[5] = 0xff;
Filter[6] = 0xff;
Filter[7] = 0xff;
Filter[8] = DUAL_FILTER_MODE;
Baud = CAN_TIMING_250K;
bResult = m_CAN.StartCAN( 1, Baud, (BYTE*)Filter, 9 );
if( bResult==FALSE )
return -1;
m_CAN.OnRead = OnReceive;
m_CAN.OnError = OnError;
ReceiveLen = 0;
SendLen = 0;
TxBuf[0]=0x42;
TxBuf[1]=0x1f;
TxBuf[2]=0x00;
for( )
{
if( type>0 ) //沒(méi)收到CAN數(shù)據(jù)時(shí)，在此處死循環(huán)
{
sprintf( str, "0x%04x", KeyCode );
LCD_WriteString( 8, 48, str, 1 );
}
}
m_CAN.StopCAN( );
return 0;
}
void CALLBACK OnReceive( )
{
char RxBuf[14];
char str[200];
UCHAR dlen;
memcpy( RxBuf, &m_CAN.RxMFrame, 13 );
dlen = RxBuf[0]&0x0f;
if( RxBuf[0]&0x80 ) // 擴(kuò)展幀
{
m_CAN.WriteCAN( (BYTE*)RxBuf, dlen+5 );
}
else // 標(biāo)準(zhǔn)幀
{
m_CAN.WriteCAN( (BYTE*)RxBuf, dlen+3 );
}
ReceiveLen += dlen;
SendLen += dlen;
if( type>0 )
{
sprintf( str, "RCV: %ld ", ReceiveLen );
LCD_WriteString( 8, 16, str, 1 );
sprintf( str, "Send: %ld ", SendLen );
LCD_WriteString( 8, 32, str, 1 );
}
}
以上為公司提供的CANTest例程函數(shù)
問(wèn)題如下：
沒(méi)收到CAN數(shù)據(jù)時(shí)，在主線程標(biāo)注處死循環(huán)
收到一幀CAN數(shù)據(jù)，單步調(diào)試，執(zhí)行CANOnReceive( )
在執(zhí)行CANOnReceive( )響應(yīng)完CAN線程后，CAN線程應(yīng)該掛起。此時(shí)應(yīng)該跳至主線程（文中標(biāo)注處）死循環(huán)執(zhí)行主線程。但單步調(diào)試，顯示”All Threads are suspended“
公司寫的CAN線程處理函數(shù)，響應(yīng)CAN線程時(shí)，是否將主線程人為掛起？還是其他原因？
