减少使用TimeWheel

This commit is contained in:
Stone 2016-06-19 16:41:55 +00:00
parent 849ff61678
commit 61cc2b71ea
10 changed files with 95 additions and 118 deletions

View File

@ -29,7 +29,7 @@ typedef enum
WaitRev,
Rev,
RevOver,
Sending,
SendOver,
}IRStat;
@ -45,7 +45,7 @@ bool IR::Send(const Buffer& bs)
#ifdef STM32F0
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
TIM_DeInit(TIM2);
if(_Tim == nullptr)
{
// RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
@ -54,7 +54,7 @@ bool IR::Send(const Buffer& bs)
// _Tim->SetFrequency(50); // 5Hz 20ms
// 使用一个字节 需要自行配置分频系数
_Tim->Prescaler = 400; // 分频 需要结果是 Period < 256 时能计数 20ms
SendP = (ushort *)bs.GetBuffer();
SendBufLen = bs.Length()/2;
SendIndex = 0;
@ -63,24 +63,27 @@ bool IR::Send(const Buffer& bs)
// 取消接收时候的配置
_Tim->Opened = true;
_Tim->Close();
// 注册中断
_Tim->Register(OnSend,this);
// 重新配置
_Tim->SetCounter(0x00000000);
_Tim->Config();
Stat = Sending;
debug_printf("Start %04X\r\n",SendP[0]);
// 暂时避过 定时器一启动立马中断的错误
ErrorIRQ = true;
// 开始 中断内处理数据
// _Pwm->Open();
_Tim->Open();
// 等待结束
TimeWheel tw(2);
while(!tw.Expired() && Stat != SendOver) Sys.Sleep(50);
_SendOK = false;
WaitHandle wh;
wh.WaitOne(2000, _SendOK);
// 结束 不论是超时还是发送结束都关闭pwm和定时器
//_Pwm->Close();
_Tim->Register(nullptr,nullptr);
@ -88,7 +91,7 @@ bool IR::Send(const Buffer& bs)
// 清空使用的数据
SendIndex = 0;
SendP = nullptr;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, DISABLE);
#endif
return true;
@ -111,7 +114,7 @@ void IR::OnSend(void* sender, void* param)
// PWM归位
TIM_SetCounter(ti, 0x00000000);
// PWM变化
//if(SendIndex % 2)
//if(SendIndex % 2)
if(SendIndex & 1) //不行 暂不知问题所在
{
TIM_Cmd(ti, ENABLE);
@ -135,6 +138,8 @@ void IR::OnSend(void* sender, void* param)
//ir->_Pwm->Close();
//ir->_Tim->Close();
Stat = SendOver;
_SendOK = true;
return;
}
#endif
@ -146,7 +151,7 @@ int IR::Receive(Buffer& bs, int sTimeout)
#ifdef STM32F0
uint bufLen = bs.Length();
uint DmaLen = bufLen/2 -1;
// 捕获引脚初始化
if(_Port == nullptr)
{
@ -156,39 +161,39 @@ int IR::Receive(Buffer& bs, int sTimeout)
_Port->AFConfig(Port::AF_2);
}
if(_Tim == nullptr) _Tim = Timer::Create(0x01); // 直接占用TIMER2
// RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, DISABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
// TIM_DeInit(TIM2);
// _Tim->SetFrequency(50); //Prescaler Period 需要定制
_Tim->Prescaler = 400;
// 波形间隔悬殊,用一个字节误差太大
_Tim->Period = 65536;
_Tim->Config();
/* 使能自动装载 */
TIM_ARRPreloadConfig(TIM2, ENABLE);
// 捕获设置
// 2通道映射到1通道 配套使用DMA1 Channel5
TIM_ICInitTypeDef TIM_ICInitStructure;
TIM_ICInitTypeDef TIM_ICInitStructure;
TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_BothEdge;
TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_IndirectTI;
TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
TIM_ICInitStructure.TIM_ICFilter = 0x0;
TIM_PWMIConfig(TIM2, &TIM_ICInitStructure);
/* Select the TIM2 Input Trigger: TI2FP2 */
TIM_SelectInputTrigger(TIM2, TIM_TS_TI2FP2);
/* 捕获的同时清空定时器计数,不能使用 这个复位是以电平为准,不是沿
/* 捕获的同时清空定时器计数,不能使用 这个复位是以电平为准,不是沿
使使 */
// TIM_SelectSlaveMode(TIM2, TIM_SlaveMode_Reset);
// TIM_SelectMasterSlaveMode(TIM2,TIM_MasterSlaveMode_Enable);
// DMA 读取CNT寄存器一字节设置 无法解决数据冗余
// TIM_DMAConfig(TIM2, TIM_DMABase_CNT, TIM_DMABurstLength_1Transfer);
//TIM_Cmd(TIM2, ENABLE);
// DMA 时钟
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1 , ENABLE);
// 使用通道5
@ -208,34 +213,35 @@ int IR::Receive(Buffer& bs, int sTimeout)
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel5, &DMA_InitStructure);
// 开启DMA TIME
DMA_Cmd(DMA1_Channel5, ENABLE);
TIM_Cmd(TIM2, ENABLE);
// 连接DMA 触发机制
TIM_DMACmd(TIM2, TIM_DMA_CC1, ENABLE);
// 等待起始条件DMA 开始搬运数据
Stat = WaitRev;
TimeWheel tw(sTimeout);
while(!tw.Expired()
&& DMA_GetCurrDataCounter(DMA1_Channel5) == DmaLen) Sys.Sleep(50);
if(tw.Expired())
{
TimeWheel tw(sTimeout);
tw.Sleep = 50;
while(!tw.Expired() && DMA_GetCurrDataCounter(DMA1_Channel5) == DmaLen);
if(tw.Expired())
{
// 超时没有收到学习
Stat = RevOver;
// 关闭Time DMA
DMA_Cmd(DMA1_Channel5, DISABLE);
TIM_Cmd(TIM2, DISABLE);
int length = DMA_GetCurrDataCounter(DMA1_Channel5);
debug_printf("\r\n DMA::Counter %d \r\n", length);
bs.SetLength(0);
return -1;
}
// 进入接收状态
Stat = Rev;
debug_printf("\r\n开始接收数据\r\n");
@ -243,9 +249,9 @@ int IR::Receive(Buffer& bs, int sTimeout)
// 不能使用 定时器 中断作为超时依据 只能等。。
tw.Reset(0,400);
while(!tw.Expired()) Sys.Sleep(50);
// 接收结束
// 关闭Time DMA
// 关闭Time DMA
DMA_Cmd(DMA1_Channel5, DISABLE);
TIM_Cmd(TIM2, DISABLE);
// 本次接收结束,关闭 RCC 防止这些配置贻害无穷
@ -253,7 +259,7 @@ int IR::Receive(Buffer& bs, int sTimeout)
// 拿到数据长度
uint len = DmaLen - DMA_GetCurrDataCounter(DMA1_Channel5);
debug_printf("DMA REV %d byte\r\n",len);
if(len > 30)
{
if(len >= DmaLen)

View File

@ -22,10 +22,6 @@
class IR
{
private:
PWM* _Pwm = nullptr;
Timer* _Tim = nullptr;
AlternatePort * _Port = nullptr;
public:
IR(PWM * pwm);
@ -36,6 +32,12 @@ public:
int Receive(Buffer& bs, int sTimeout = 10);
private:
PWM* _Pwm = nullptr;
Timer* _Tim = nullptr;
AlternatePort * _Port = nullptr;
bool _SendOK;
//bool _RecvOK;
static void OnSend(void* sender, void* param);
};

View File

@ -50,22 +50,25 @@ void IC74HC165MOR::Trigger()
for(int i = 0; i < _Bs.Length(); i++)
{
byte temp = 0x00;
TimeWheel tw(0,2);
for(int j = 0; j < 8; j++)
int j = 0;
for(j = 0; j < 8; j++)
{
while(!tw.Expired() && _SCK != true ); // 等待 高电平
if(tw.Expired()) break;
int times = 2000;
while(!_SCK && --times); // 等待 高电平
if(!times) break;
if(_In) temp |= 0x01;
else temp &= 0xfe;
while(!tw.Expired() && _SCK != false ); // 等待低电平
times = 2000;
while(_SCK && --times); // 等待低电平
if(!times) break;
temp <<= 1;
}
_Bs[i] = temp;
if(tw.Expired())return; // 2ms 不结束 就强制退出
//if(tw.Expired())return; // 2ms 不结束 就强制退出
if(j < 8) break;
}
}

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@ -100,8 +100,8 @@ uint HX711::Read()
uint temp = 0x00000000;
// 等待 IC 数据
TimeWheel tw(0, 30);
while(!tw.Expired() && DOUT);
int times = 30000;
while(DOUT && --times);
// 读取数据
for(int i = 0;i < 24; i++)

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@ -857,7 +857,7 @@ bool NRF24L01::SendTo(const Buffer& bs, const Buffer& addr)
// https://devzone.nordicsemi.com/question/17074/nrf24l01-data-loss/
// It is important never to keep the nRF24L01+ in TX mode for more than 4ms at a time.
// If the Enhanced ShockBurst™ features are enabled, nRF24L01+ is never in TX mode longer than 4ms
TimeWheel tw(0, ms);
auto end = Sys.Ms() + ms;
do
{
Status = ReadReg(STATUS);
@ -894,7 +894,7 @@ bool NRF24L01::SendTo(const Buffer& bs, const Buffer& addr)
break;
}
}while(!tw.Expired());
}while(Sys.Ms() < end);
// 这里开始到CE拉高结束大概耗时186us。不拉高CE大概20us
//_CE = true;

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@ -3,8 +3,6 @@
#include "Sys.h"
class DateTime;
// 时间类
// 使用双计数时钟TIMx专用于毫秒级系统计时SysTick用于微秒级延迟秒级以及以上采用全局整数累加
// 这样子可以避免频繁使用微秒时带来长整型乘除法

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@ -1,23 +1,21 @@
#include "Time.h"
#include "Arp.h"
#include "WaitHandle.h"
#define NET_DEBUG 0
class ArpSession
{
public:
IPAddress IP;
MacAddress Mac;
bool Success;
const IPAddress& IP;
MacAddress Mac;
WaitHandle Handle;
ArpSession(const IPAddress& ip)
{
IP = ip;
Success = false;
}
ArpSession(const IPAddress& ip) : IP(ip) { }
};
ArpSession* _ArpSession;
ArpSession* _ArpSession = nullptr;
ArpSocket::ArpSocket(TinyIP* tip) : TinySocket(tip, IP_NONE)
{
@ -80,7 +78,9 @@ bool ArpSocket::Process(IP_HEADER& ip, Stream& ms)
if(arp->Option == 0x0200 && _ArpSession && _ArpSession->IP.Value == arp->SrcIP)
{
_ArpSession->Mac = arp->SrcMac.Value();
_ArpSession->Success = true;
_ArpSession->Handle.Set();
_ArpSession = nullptr;
return true;
}
@ -164,28 +164,14 @@ bool ArpSocket::Request(const IPAddress& ip, MacAddress& mac, int timeout)
// 如果没有超时时间,表示异步请求,不用等待结果
if(timeout <= 0) return false;
// 等待反馈
//if(Tip->LoopWait(RequestCallback, &mac, timeout * 1000)) return true;
// 等待响应
ArpSession ss(ip);
_ArpSession = &ss;
// 等待响应
TimeWheel tw(timeout);
tw.Sleep = 1;
do{
if(ss.Success) break;
}while(!tw.Expired());
if(!ss.Handle.WaitOne(timeout)) return false;
if(ss.Success)
{
mac = ss.Mac;
return true;
}
_ArpSession = nullptr;
return false;
mac = ss.Mac;
return true;
}
bool ArpSocket::Resolve(const IPAddress& ip, MacAddress& mac)

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@ -2,6 +2,8 @@
#include "Icmp.h"
#include "Arp.h"
#include "WaitHandle.h"
#define NET_DEBUG DEBUG
class PingSession
@ -10,14 +12,13 @@ public:
IPAddress Address;
ushort Identifier;
ushort Sequence;
bool Success;
WaitHandle Handle;
PingSession(IPAddress& ip, ushort id, ushort seq)
{
Address = ip;
Identifier = id;
Sequence = seq;
Success = false;
}
bool Check(IPAddress& remote, ICMP_HEADER* icmp)
@ -50,7 +51,9 @@ bool IcmpSocket::Process(IP_HEADER& ip, Stream& ms)
// 检查有没有会话等待
if(icmp->Type == 0 && _IcmpSession != nullptr && _IcmpSession->Check(remote, icmp))
{
_IcmpSession->Success = true;
_IcmpSession->Handle.Set();
_IcmpSession = nullptr;
return true;
}
@ -147,25 +150,15 @@ bool IcmpSocket::Ping(IPAddress& ip, uint payloadLength)
#endif
Tip->SendIP(IP_ICMP, ip, (byte*)icmp, sizeof(ICMP_HEADER) + payloadLength);
// 等待时间
//int ps[] = {ip.Value, id, seq};
//if(Tip->LoopWait(PingCallback, ps, 1000)) return true;
PingSession ps(ip, id, seq);
_IcmpSession = &ps;
// 等待响应
TimeWheel tw(0, 1000);
tw.Sleep = 1;
do{
if(ps.Success) break;
}while(!tw.Expired());
_IcmpSession = nullptr;
bool rs = ps.Handle.WaitOne(1000);
#if NET_DEBUG
uint cost = ct.Elapsed() / 1000;
if(ps.Success)
if(rs)
debug_printf(" 成功 %dms\r\n", cost);
else
debug_printf(" 失败 %dms\r\n", cost);

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@ -1,11 +1,11 @@
#include "Time.h"
#include "Tcp.h"
#include "WaitHandle.h"
#define NET_DEBUG 0
//#define NET_DEBUG DEBUG
bool* WaitAck;
bool Callback(TinyIP* tip, void* param, Stream& ms);
TcpSocket::TcpSocket(TinyIP* tip) : TinySocket(tip, IP_TCP)
@ -79,9 +79,10 @@ bool TcpSocket::Process(IP_HEADER& ip, Stream& ms)
//Local.Port = port;
//Local.Address = ip.DestIP;
if(WaitAck && (tcp->Flags & TCP_FLAGS_ACK))
if(_wait && (tcp->Flags & TCP_FLAGS_ACK))
{
*WaitAck = true;
((WaitHandle*)_wait)->Set();
_wait = nullptr;
}
OnProcess(*tcp, ms);
@ -408,26 +409,19 @@ bool TcpSocket::Send(const Buffer& bs)
//debug_printf("Seq=0x%04x Ack=0x%04x \r\n", Seq, Ack);
if(!SendPacket(*tcp, bs.Length(), TCP_FLAGS_PUSH | TCP_FLAGS_ACK)) return false;
bool wait = false;
WaitAck = &wait;
// 等待响应
TimeWheel tw(0, 3000);
tw.Sleep = 1;
do{
if(wait) break;
}while(!tw.Expired());
WaitAck = nullptr;
WaitHandle wh;
_wait = &wh;
bool rs = wh.WaitOne(3000);
#if NET_DEBUG
if(wait)
if(rs)
debug_printf("发送成功!\r\n");
else
debug_printf("发送失败!\r\n");
#endif
return wait;
return rs;
}
uint TcpSocket::Receive(Buffer& bs)
@ -474,19 +468,11 @@ bool TcpSocket::Connect(IPAddress& ip, ushort port)
return false;
}
bool wait = false;
WaitAck = &wait;
// 等待响应
TimeWheel tw(0, 3000);
tw.Sleep = 1;
do{
if(wait) break;
}while(!tw.Expired());
WaitHandle wh;
_wait = &wh;
WaitAck = nullptr;
if(wait)
if(wh.WaitOne(3000))
{
if(Status == Established)
{

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@ -70,6 +70,9 @@ protected:
virtual bool OnWrite(const Buffer& bs);
virtual uint OnRead(Buffer& bs);
private:
void* _wait = nullptr;
};
#endif