Diff: library/ScrpSlave.cpp

Revision:

0:a8a56075e947

Child:

1:17051435cfc5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/library/ScrpSlave.cpp	Sat May 18 12:09:43 2019 +0000
@@ -0,0 +1,186 @@
+#include "ScrpSlave.hpp"
+
+#define STX 0x41
+#define DMY 0xff
+
+ScrpSlave::ScrpSlave(PinName TX1,PinName RX1,uint32_t addr):addr(addr){
+    mode = 0;
+    init(TX1,RX1);
+}
+
+ScrpSlave::ScrpSlave(PinName TX1,PinName RX1,PinName REDE1,uint32_t addr):addr(addr){
+    mode = 1;
+    rede = new DigitalOut(REDE1);
+    init(TX1,RX1);
+}
+
+ScrpSlave::ScrpSlave(PinName TX1,PinName RX1,PinName TX2,PinName RX2,uint32_t addr):addr(addr){
+    mode = 2;
+    serial[1] = new Serial(TX2,RX2,115200);
+    serial[1]->attach(callback(this,&ScrpSlave::port2),Serial::RxIrq);
+    init(TX1,RX1);
+}
+
+ScrpSlave::ScrpSlave(PinName TX1,PinName RX1,PinName REDE1,PinName TX2,PinName RX2,uint32_t addr):addr(addr){
+    mode = 3;
+    rede = new DigitalOut(REDE1);
+    serial[1] = new Serial(TX2,RX2,115200);
+    serial[1]->attach(callback(this,&ScrpSlave::port2),Serial::RxIrq);
+    init(TX1,RX1);
+}
+
+void ScrpSlave::init(PinName TX,PinName RX){
+    timeout = 100;
+    serial[0] = new Serial(TX,RX,115200);
+    serial[0]->attach(callback(this,&ScrpSlave::port1),Serial::RxIrq);
+    flash = new FlashIAP;
+    if(flash->init()==0){
+        if(flash->read(&my_id,addr,1) != 0){
+            send(222,222,222);
+            my_id = 10;
+        }
+    }else{
+        send(111,111,111);
+        my_id = 10;
+    }
+    for(int i = 1;i<255;++i){
+        procs[i] = 0;
+    }
+}
+
+void ScrpSlave::port1(){
+    check(0);
+}
+
+void ScrpSlave::port2(){
+    check(1);
+}
+
+void ScrpSlave::addCMD(uint8_t cmd, bool (*proc)(int rx_data, int& tx_data)){
+    if(cmd == 0 || cmd == 254 || cmd == 253)return;
+    procs[cmd] = proc;
+}
+
+void ScrpSlave::setTimeout(int time){
+    timeout = time;
+}
+
+void ScrpSlave::changeID(uint8_t id){
+    flash->erase(addr,flash->get_sector_size(addr));
+    flash->program(&id,addr,1);
+}
+
+int ScrpSlave::send(uint8_t id,uint8_t cmd,int16_t tx_data){
+    return sending(0,id,cmd,tx_data);
+}
+
+int ScrpSlave::send2(uint8_t id,uint8_t cmd,int16_t tx_data){
+    if(mode < 2)return -1;
+    return sending(1,id,cmd,tx_data);
+}
+
+int ScrpSlave::sending(int port,uint8_t id,uint8_t cmd,int16_t tx_data){
+    uint8_t tx_dataL = tx_data;
+    uint8_t tx_dataH = tx_data >> 8;
+    uint8_t tx_sum = id + cmd + tx_dataL + tx_dataH;
+
+    const uint8_t data[] = {DMY, STX, id, cmd, tx_dataL, tx_dataH, tx_sum};
+    if(!serial[port]->writeable())return -1;
+    if(mode%2 == 1 && id == 0)rede->write(1);
+    for(int i = 0;i<7;i++){
+        serial[port]->putc(data[i]);
+    }
+    if(mode%2 == 1 && id == 0)rede->write(0);
+            
+    int i = 0;
+    bool received = false;
+    bool stxflag = false;
+    uint8_t rx[5]={},sum = 0;
+    Timer out;
+    out.start();
+    while(out.read_ms() < timeout && !received){
+        while(serial[port]->readable()){
+            if(serial[port]->getc() == STX && !stxflag){
+                stxflag = true;
+                continue;
+            }
+            if(stxflag){
+                rx[i] = serial[port]->getc();
+                sum += rx[i++];
+            }
+            if(i > 4){/*
+                uint8_t sum = 0;
+                for(int j = 0;j<4;j++){
+                    sum += rx[j];
+                }*/
+                if(sum == rx[4]){
+                    received = true;
+                }
+                break;
+            }
+        }
+    }
+    out.stop();
+    if(!received)return -1;
+    return (rx[2] + (rx[3] << 8));
+}
+
+void ScrpSlave::check(int port){
+    uint8_t rx_cmd;
+    int16_t rx_data;
+    bool received = false;
+    bool broadcast = false;
+    while(serial[port]->readable()){
+        if(serial[port]->getc() != STX)continue;
+        uint8_t rx_id = serial[port]->getc();
+        uint8_t tmp_rx_cmd = serial[port]->getc();
+        uint8_t tmp_rx_dataL = serial[port]->getc();
+        uint8_t tmp_rx_dataH = serial[port]->getc();
+        uint8_t rx_sum = serial[port]->getc();
+        
+        uint8_t sum = rx_id + tmp_rx_cmd + tmp_rx_dataL + tmp_rx_dataH;
+        if(sum != rx_sum)continue;
+        
+        if(rx_id == 255)broadcast = true;
+        else if(my_id == rx_id)broadcast = false;
+        else break;
+        
+        rx_cmd = tmp_rx_cmd;
+        rx_data = tmp_rx_dataL + ((int16_t)tmp_rx_dataH << 8);
+        received = true;
+    }
+    if(!received) return;
+    int tx_data = rx_data;
+    if(rx_cmd == 0){
+        tx_data = rx_data;
+    }else if(rx_cmd == 254){
+        uint8_t new_id = rx_data;
+        my_id = new_id;
+        changeID(new_id);
+    }else if(rx_cmd == 253){
+        tx_data = my_id;
+        rx_cmd = 250;
+        broadcast = false;
+    }else if(procs[rx_cmd] == 0 || !procs[rx_cmd](rx_data,tx_data))return;
+    if(broadcast)return;
+    
+    uint8_t tx_dataL = tx_data;
+    uint8_t tx_dataH = tx_data >> 8;
+    uint8_t tx_sum = my_id + rx_cmd + tx_dataL + tx_dataH;
+    
+    const uint8_t data[] = {DMY, STX, my_id, rx_cmd, tx_dataL, tx_dataH, tx_sum};
+    if(!serial[port]->writeable())return;
+    if(mode%2 == 1 && port == 0)rede->write(1);
+    for(int i = 0;i<7;i++){
+        serial[port]->putc(data[i]);
+    }
+    if(mode%2 == 1 && port == 0)rede->write(0);    
+    return;
+}
+
+ScrpSlave::~ScrpSlave(){
+    delete serial[0];
+    delete flash;
+    if(mode%2 == 1)delete rede;
+    if(mode >= 2)delete serial[1];
+}
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