diff --git a/.gitignore b/.gitignore index b6fecc2..00903a4 100644 --- a/.gitignore +++ b/.gitignore @@ -1,4 +1,7 @@ __pycache__ *.Identifier URDF_Exporter/.env -URDF_Exporter/.vscode/ \ No newline at end of file +URDF_Exporter/.vscode/ +ST3215/STServo_Python/stservo-env/Include/ +ST3215/STServo_Python/stservo-env/Scripts/ +ST3215/STServo_Python/stservo-env/Lib/ \ No newline at end of file diff --git a/ST3215/SCServo_Cpp/.DS_Store b/ST3215/SCServo_Cpp/.DS_Store new file mode 100644 index 0000000..6fd92e1 Binary files /dev/null and b/ST3215/SCServo_Cpp/.DS_Store differ diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/.DS_Store b/ST3215/SCServo_Cpp/SCServo_Linux/.DS_Store new file mode 100644 index 0000000..2a143eb Binary files /dev/null and b/ST3215/SCServo_Cpp/SCServo_Linux/.DS_Store differ diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/CMakeLists.txt b/ST3215/SCServo_Cpp/SCServo_Linux/CMakeLists.txt new file mode 100644 index 0000000..08fb069 --- /dev/null +++ b/ST3215/SCServo_Cpp/SCServo_Linux/CMakeLists.txt @@ -0,0 +1,11 @@ +cmake_Minimum_required(VERSION 2.8.3) +set(project "SCServo") +project(${project}) + +set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O3") + +file(GLOB hdrs *.h) +file(GLOB srs *.cpp) + +add_library(${project} STATIC ${hdrs} ${srs}) +#add_executable(${project} main.cpp ${hdrs} ${srs}) \ No newline at end of file diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/INST.h b/ST3215/SCServo_Cpp/SCServo_Linux/INST.h new file mode 100644 index 0000000..d349eb6 --- /dev/null +++ b/ST3215/SCServo_Cpp/SCServo_Linux/INST.h @@ -0,0 +1,26 @@ +/* + * INST.h + * 串行舵机协议指令定义 + * 日期: 2021.12.8 + * 作者: + */ + +#ifndef _INST_H +#define _INST_H + +typedef char s8; +typedef unsigned char u8; +typedef unsigned short u16; +typedef short s16; +typedef unsigned long u32; +typedef long s32; + +#define INST_PING 0x01 +#define INST_READ 0x02 +#define INST_WRITE 0x03 +#define INST_REG_WRITE 0x04 +#define INST_REG_ACTION 0x05 +#define INST_SYNC_READ 0x82 +#define INST_SYNC_WRITE 0x83 + +#endif \ No newline at end of file diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/SCS.cpp b/ST3215/SCServo_Cpp/SCServo_Linux/SCS.cpp new file mode 100644 index 0000000..f4f0e07 --- /dev/null +++ b/ST3215/SCServo_Cpp/SCServo_Linux/SCS.cpp @@ -0,0 +1,394 @@ +/* + * SCS.cpp + * 飞特串行舵机通信层协议程序 + * 日期: 2022.3.29 + * 作者: + */ +#include +#include +#include +#include "SCS.h" + +SCS::SCS() +{ + Level = 1;//除广播指令所有指令返回应答 + Error = 0; +} + +SCS::SCS(u8 End) +{ + Level = 1; + this->End = End; + Error = 0; +} + +SCS::SCS(u8 End, u8 Level) +{ + this->Level = Level; + this->End = End; + Error = 0; +} + +//1个16位数拆分为2个8位数 +//DataL为低位，DataH为高位 +void SCS::Host2SCS(u8 *DataL, u8* DataH, u16 Data) +{ + if(End){ + *DataL = (Data>>8); + *DataH = (Data&0xff); + }else{ + *DataH = (Data>>8); + *DataL = (Data&0xff); + } +} + +//2个8位数组合为1个16位数 +//DataL为低位，DataH为高位 +u16 SCS::SCS2Host(u8 DataL, u8 DataH) +{ + u16 Data; + if(End){ + Data = DataL; + Data<<=8; + Data |= DataH; + }else{ + Data = DataH; + Data<<=8; + Data |= DataL; + } + return Data; +} + +void SCS::writeBuf(u8 ID, u8 MemAddr, u8 *nDat, u8 nLen, u8 Fun) +{ + u8 msgLen = 2; + u8 bBuf[6]; + u8 CheckSum = 0; + bBuf[0] = 0xff; + bBuf[1] = 0xff; + bBuf[2] = ID; + bBuf[4] = Fun; + if(nDat){ + msgLen += nLen + 1; + bBuf[3] = msgLen; + bBuf[5] = MemAddr; + writeSCS(bBuf, 6); + + }else{ + bBuf[3] = msgLen; + writeSCS(bBuf, 5); + } + CheckSum = ID + msgLen + Fun + MemAddr; + u8 i = 0; + if(nDat){ + for(i=0; i=syncReadRxPacketLen){ + return -1; + } + return syncReadRxPacket[syncReadRxPacketIndex++]; +} + +int SCS::syncReadRxPacketToWrod(u8 negBit) +{ + if((syncReadRxPacketIndex+1)>=syncReadRxPacketLen){ + return -1; + } + int Word = SCS2Host(syncReadRxPacket[syncReadRxPacketIndex], syncReadRxPacket[syncReadRxPacketIndex+1]); + syncReadRxPacketIndex += 2; + if(negBit){ + if(Word&(1< +#include +#include +#include +#include +#include + +class SCSerial : public SCS +{ +public: + SCSerial(); + SCSerial(u8 End); + SCSerial(u8 End, u8 Level); + +protected: + int writeSCS(unsigned char *nDat, int nLen);//输出nLen字节 + int readSCS(unsigned char *nDat, int nLen);//输入nLen字节 + int writeSCS(unsigned char bDat);//输出1字节 + void rFlushSCS();// + void wFlushSCS();// +public: + unsigned long int IOTimeOut;//输入输出超时 + int Err; +public: + virtual int getErr(){ return Err; } + virtual int setBaudRate(int baudRate); + virtual bool begin(int baudRate, const char* serialPort); + virtual void end(); +protected: + int fd;//serial port handle + struct termios orgopt;//fd ort opt + struct termios curopt;//fd cur opt + unsigned char txBuf[255]; + int txBufLen; +}; + +#endif \ No newline at end of file diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/SCServo.h b/ST3215/SCServo_Cpp/SCServo_Linux/SCServo.h new file mode 100644 index 0000000..7dbcfd0 --- /dev/null +++ b/ST3215/SCServo_Cpp/SCServo_Linux/SCServo.h @@ -0,0 +1,15 @@ +/* + * SCServo.h + * 串行舵机接口 + * 日期: 2021.12.8 + * 作者: + */ + +#ifndef _SCSERVO_H +#define _SCSERVO_H + +#include "SMSBL.h" +#include "SCSCL.h" +#include "SMSCL.h" +#include "SMS_STS.h" +#endif \ No newline at end of file diff --git a/ST3215/SCServo_Cpp/SCServo_Linux/SMSBL.cpp b/ST3215/SCServo_Cpp/SCServo_Linux/SMSBL.cpp new file mode 100644 index 0000000..9d51ef6 --- /dev/null +++ b/ST3215/SCServo_Cpp/SCServo_Linux/SMSBL.cpp @@ -0,0 +1,259 @@ +/* + * SMSBL.cpp + * SMSBL系列串行舵机应用层程序 + * 日期: 2020.6.17 + * 作者: + */ + +#include "SMSBL.h" + +SMSBL::SMSBL() +{ + End = 0; +} + +SMSBL::SMSBL(u8 End):SCSerial(End) +{ +} + +SMSBL::SMSBL(u8 End, u8 Level):SCSerial(End, Level) +{ +} + +int SMSBL::WritePosEx(u8 ID, s16 Position, u16 Speed, u8 ACC) +{ + if(Position<0){ + Position = -Position; + Position |= (1<<15); + } + u8 bBuf[7]; + bBuf[0] = ACC; + Host2SCS(bBuf+1, bBuf+2, Position); + Host2SCS(bBuf+3, bBuf+4, 0); + Host2SCS(bBuf+5, bBuf+6, Speed); + + return genWrite(ID, SMSBL_ACC, bBuf, 7); +} + +int SMSBL::RegWritePosEx(u8 ID, s16 Position, u16 Speed, u8 ACC) +{ + if(Position<0){ + Position = -Position; + Position |= (1<<15); + } + u8 bBuf[7]; + bBuf[0] = ACC; + Host2SCS(bBuf+1, bBuf+2, Position); + Host2SCS(bBuf+3, bBuf+4, 0); + Host2SCS(bBuf+5, bBuf+6, Speed); + + return regWrite(ID, SMSBL_ACC, bBuf, 7); +} + +void SMSBL::SyncWritePosEx(u8 ID[], u8 IDN, s16 Position[], u16 Speed[], u8 ACC[]) +{ + + u8 offbuf[IDN][7]; + for(u8 i = 0; i +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +u8 ID[2] = {1, 2}; +u16 Position[2]; +u16 Speed[2]; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SCSCL sc; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<< "argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; +uint8_t ID[] = {1, 2}; +uint8_t rxPacket[4]; +int16_t Position; +int16_t Speed; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +u8 ID[2] = {1, 2}; +s16 Position[2]; +u16 Speed[2] = {2400, 2400}; +u8 ACC[2] = {50, 50}; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"< +#include "SCServo.h" + +SMS_STS sm_st; + +int main(int argc, char **argv) +{ + if(argc<2){ + std::cout<<"argc error!"<= (self.data_length+6): + for sts_id in self.data_dict: + self.data_dict[sts_id], result = self.readRx(rxpacket, sts_id, self.data_length) + if result != COMM_SUCCESS: + self.last_result = False + # print(sts_id) + else: + self.last_result = False + # print(self.last_result) + return result + + def txRxPacket(self): + result = self.txPacket() + if result != COMM_SUCCESS: + return result + + return self.rxPacket() + + def readRx(self, rxpacket, sts_id, data_length): + # print(sts_id) + # print(rxpacket) + data = [] + rx_length = len(rxpacket) + # print(rx_length) + rx_index = 0; + while (rx_index+6+data_length) <= rx_length: + headpacket = [0x00, 0x00, 0x00] + while rx_index < rx_length: + headpacket[2] = headpacket[1]; + headpacket[1] = headpacket[0]; + headpacket[0] = rxpacket[rx_index]; + rx_index += 1 + if (headpacket[2] == 0xFF) and (headpacket[1] == 0xFF) and headpacket[0] == sts_id: + # print(rx_index) + break + # print(rx_index+3+data_length) + if (rx_index+3+data_length) > rx_length: + break; + if rxpacket[rx_index] != (data_length+2): + rx_index += 1 + # print(rx_index) + continue + rx_index += 1 + Error = rxpacket[rx_index] + rx_index += 1 + calSum = sts_id + (data_length+2) + Error + data = [Error] + data.extend(rxpacket[rx_index : rx_index+data_length]) + for i in range(0, data_length): + calSum += rxpacket[rx_index] + rx_index += 1 + calSum = ~calSum & 0xFF + # print(calSum) + if calSum != rxpacket[rx_index]: + return None, COMM_RX_CORRUPT + return data, COMM_SUCCESS + # print(rx_index) + return None, COMM_RX_CORRUPT + + def isAvailable(self, sts_id, address, data_length): + #if self.last_result is False or sts_id not in self.data_dict: + if sts_id not in self.data_dict: + return False, 0 + + if (address < self.start_address) or (self.start_address + self.data_length - data_length < address): + return False, 0 + if not self.data_dict[sts_id]: + return False, 0 + if len(self.data_dict[sts_id])<(data_length+1): + return False, 0 + return True, self.data_dict[sts_id][0] + + def getData(self, sts_id, address, data_length): + if data_length == 1: + return self.data_dict[sts_id][address-self.start_address+1] + elif data_length == 2: + return self.ph.scs_makeword(self.data_dict[sts_id][address-self.start_address+1], + self.data_dict[sts_id][address-self.start_address+2]) + elif data_length == 4: + return self.ph.scs_makedword(self.ph.scs_makeword(self.data_dict[sts_id][address-self.start_address+1], + self.data_dict[sts_id][address-self.start_address+2]), + self.ph.scs_makeword(self.data_dict[sts_id][address-self.start_address+3], + self.data_dict[sts_id][address-self.start_address+4])) + else: + return 0 diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/group_sync_write.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/group_sync_write.py new file mode 100644 index 0000000..b2ce36d --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/group_sync_write.py @@ -0,0 +1,73 @@ +#!/usr/bin/env python + +from .stservo_def import * + +class GroupSyncWrite: + def __init__(self, ph, start_address, data_length): + self.ph = ph + self.start_address = start_address + self.data_length = data_length + + self.is_param_changed = False + self.param = [] + self.data_dict = {} + + self.clearParam() + + def makeParam(self): + if not self.data_dict: + return + + self.param = [] + + for sts_id in self.data_dict: + if not self.data_dict[sts_id]: + return + + self.param.append(sts_id) + self.param.extend(self.data_dict[sts_id]) + + def addParam(self, sts_id, data): + if sts_id in self.data_dict: # sts_id already exist + return False + + if len(data) > self.data_length: # input data is longer than set + return False + + self.data_dict[sts_id] = data + + self.is_param_changed = True + return True + + def removeParam(self, sts_id): + if sts_id not in self.data_dict: # NOT exist + return + + del self.data_dict[sts_id] + + self.is_param_changed = True + + def changeParam(self, sts_id, data): + if sts_id not in self.data_dict: # NOT exist + return False + + if len(data) > self.data_length: # input data is longer than set + return False + + self.data_dict[sts_id] = data + + self.is_param_changed = True + return True + + def clearParam(self): + self.data_dict.clear() + + def txPacket(self): + if len(self.data_dict.keys()) == 0: + return COMM_NOT_AVAILABLE + + if self.is_param_changed is True or not self.param: + self.makeParam() + + return self.ph.syncWriteTxOnly(self.start_address, self.data_length, self.param, + len(self.data_dict.keys()) * (1 + self.data_length)) diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/port_handler.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/port_handler.py new file mode 100644 index 0000000..63f0943 --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/port_handler.py @@ -0,0 +1,115 @@ +#!/usr/bin/env python + +import time +import serial +import sys +import platform + +DEFAULT_BAUDRATE = 1000000 +LATENCY_TIMER = 50 + +class PortHandler(object): + def __init__(self, port_name): + self.is_open = False + self.baudrate = DEFAULT_BAUDRATE + self.packet_start_time = 0.0 + self.packet_timeout = 0.0 + self.tx_time_per_byte = 0.0 + + self.is_using = False + self.port_name = port_name + self.ser = None + + def openPort(self): + return self.setBaudRate(self.baudrate) + + def closePort(self): + self.ser.close() + self.is_open = False + + def clearPort(self): + self.ser.flush() + + def setPortName(self, port_name): + self.port_name = port_name + + def getPortName(self): + return self.port_name + + def setBaudRate(self, baudrate): + baud = self.getCFlagBaud(baudrate) + + if baud <= 0: + # self.setupPort(38400) + # self.baudrate = baudrate + return False # TODO: setCustomBaudrate(baudrate) + else: + self.baudrate = baudrate + return self.setupPort(baud) + + def getBaudRate(self): + return self.baudrate + + def getBytesAvailable(self): + return self.ser.in_waiting + + def readPort(self, length): + if (sys.version_info > (3, 0)): + return self.ser.read(length) + else: + return [ord(ch) for ch in self.ser.read(length)] + + def writePort(self, packet): + return self.ser.write(packet) + + def setPacketTimeout(self, packet_length): + self.packet_start_time = self.getCurrentTime() + self.packet_timeout = (self.tx_time_per_byte * packet_length) + (self.tx_time_per_byte * 3.0) + LATENCY_TIMER + + def setPacketTimeoutMillis(self, msec): + self.packet_start_time = self.getCurrentTime() + self.packet_timeout = msec + + def isPacketTimeout(self): + if self.getTimeSinceStart() > self.packet_timeout: + self.packet_timeout = 0 + return True + + return False + + def getCurrentTime(self): + return round(time.time() * 1000000000) / 1000000.0 + + def getTimeSinceStart(self): + time_since = self.getCurrentTime() - self.packet_start_time + if time_since < 0.0: + self.packet_start_time = self.getCurrentTime() + + return time_since + + def setupPort(self, cflag_baud): + if self.is_open: + self.closePort() + + self.ser = serial.Serial( + port=self.port_name, + baudrate=self.baudrate, + # parity = serial.PARITY_ODD, + # stopbits = serial.STOPBITS_TWO, + bytesize=serial.EIGHTBITS, + timeout=0 + ) + + self.is_open = True + + self.ser.reset_input_buffer() + + self.tx_time_per_byte = (1000.0 / self.baudrate) * 10.0 + + return True + + def getCFlagBaud(self, baudrate): + if baudrate in [4800, 9600, 14400, 19200, 38400, 57600, 115200, 128000, 250000, 500000, 1000000]: + return baudrate + else: + return -1 \ No newline at end of file diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/protocol_packet_handler.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/protocol_packet_handler.py new file mode 100644 index 0000000..3e8412c --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/protocol_packet_handler.py @@ -0,0 +1,530 @@ +#!/usr/bin/env python + +from .stservo_def import * + +TXPACKET_MAX_LEN = 250 +RXPACKET_MAX_LEN = 250 + +# for Protocol Packet +PKT_HEADER0 = 0 +PKT_HEADER1 = 1 +PKT_ID = 2 +PKT_LENGTH = 3 +PKT_INSTRUCTION = 4 +PKT_ERROR = 4 +PKT_PARAMETER0 = 5 + +# Protocol Error bit +ERRBIT_VOLTAGE = 1 +ERRBIT_ANGLE = 2 +ERRBIT_OVERHEAT = 4 +ERRBIT_OVERELE = 8 +ERRBIT_OVERLOAD = 32 + + +class protocol_packet_handler(object): + def __init__(self, portHandler, protocol_end): + #self.sts_setend(protocol_end)# STServo bit end(STS/SMS=0, SCS=1) + self.portHandler = portHandler + self.sts_end = protocol_end + + def sts_getend(self): + return self.sts_end + + def sts_setend(self, e): + self.sts_end = e + + def sts_tohost(self, a, b): + if (a & (1<> 16) & 0xFFFF + + def sts_lobyte(self, w): + if self.sts_end==0: + return w & 0xFF + else: + return (w >> 8) & 0xFF + + def sts_hibyte(self, w): + if self.sts_end==0: + return (w >> 8) & 0xFF + else: + return w & 0xFF + + def getProtocolVersion(self): + return 1.0 + + def getTxRxResult(self, result): + if result == COMM_SUCCESS: + return "[TxRxResult] Communication success!" + elif result == COMM_PORT_BUSY: + return "[TxRxResult] Port is in use!" + elif result == COMM_TX_FAIL: + return "[TxRxResult] Failed transmit instruction packet!" + elif result == COMM_RX_FAIL: + return "[TxRxResult] Failed get status packet from device!" + elif result == COMM_TX_ERROR: + return "[TxRxResult] Incorrect instruction packet!" + elif result == COMM_RX_WAITING: + return "[TxRxResult] Now receiving status packet!" + elif result == COMM_RX_TIMEOUT: + return "[TxRxResult] There is no status packet!" + elif result == COMM_RX_CORRUPT: + return "[TxRxResult] Incorrect status packet!" + elif result == COMM_NOT_AVAILABLE: + return "[TxRxResult] Protocol does not support this function!" + else: + return "" + + def getRxPacketError(self, error): + if error & ERRBIT_VOLTAGE: + return "[ServoStatus] Input voltage error!" + + if error & ERRBIT_ANGLE: + return "[ServoStatus] Angle sen error!" + + if error & ERRBIT_OVERHEAT: + return "[ServoStatus] Overheat error!" + + if error & ERRBIT_OVERELE: + return "[ServoStatus] OverEle error!" + + if error & ERRBIT_OVERLOAD: + return "[ServoStatus] Overload error!" + + return "" + + def txPacket(self, txpacket): + checksum = 0 + total_packet_length = txpacket[PKT_LENGTH] + 4 # 4: HEADER0 HEADER1 ID LENGTH + + if self.portHandler.is_using: + return COMM_PORT_BUSY + self.portHandler.is_using = True + + # check max packet length + if total_packet_length > TXPACKET_MAX_LEN: + self.portHandler.is_using = False + return COMM_TX_ERROR + + # make packet header + txpacket[PKT_HEADER0] = 0xFF + txpacket[PKT_HEADER1] = 0xFF + + # add a checksum to the packet + for idx in range(2, total_packet_length - 1): # except header, checksum + checksum += txpacket[idx] + + txpacket[total_packet_length - 1] = ~checksum & 0xFF + + #print "[TxPacket] %r" % txpacket + + # tx packet + self.portHandler.clearPort() + written_packet_length = self.portHandler.writePort(txpacket) + if total_packet_length != written_packet_length: + self.portHandler.is_using = False + return COMM_TX_FAIL + + return COMM_SUCCESS + + def rxPacket(self): + rxpacket = [] + + result = COMM_TX_FAIL + checksum = 0 + rx_length = 0 + wait_length = 6 # minimum length (HEADER0 HEADER1 ID LENGTH ERROR CHKSUM) + + while True: + rxpacket.extend(self.portHandler.readPort(wait_length - rx_length)) + rx_length = len(rxpacket) + if rx_length >= wait_length: + # find packet header + for idx in range(0, (rx_length - 1)): + if (rxpacket[idx] == 0xFF) and (rxpacket[idx + 1] == 0xFF): + break + + if idx == 0: # found at the beginning of the packet + if (rxpacket[PKT_ID] > 0xFD) or (rxpacket[PKT_LENGTH] > RXPACKET_MAX_LEN) or ( + rxpacket[PKT_ERROR] > 0x7F): + # unavailable ID or unavailable Length or unavailable Error + # remove the first byte in the packet + del rxpacket[0] + rx_length -= 1 + continue + + # re-calculate the exact length of the rx packet + if wait_length != (rxpacket[PKT_LENGTH] + PKT_LENGTH + 1): + wait_length = rxpacket[PKT_LENGTH] + PKT_LENGTH + 1 + continue + + if rx_length < wait_length: + # check timeout + if self.portHandler.isPacketTimeout(): + if rx_length == 0: + result = COMM_RX_TIMEOUT + else: + result = COMM_RX_CORRUPT + break + else: + continue + + # calculate checksum + for i in range(2, wait_length - 1): # except header, checksum + checksum += rxpacket[i] + checksum = ~checksum & 0xFF + + # verify checksum + if rxpacket[wait_length - 1] == checksum: + result = COMM_SUCCESS + else: + result = COMM_RX_CORRUPT + break + + else: + # remove unnecessary packets + del rxpacket[0: idx] + rx_length -= idx + + else: + # check timeout + if self.portHandler.isPacketTimeout(): + if rx_length == 0: + result = COMM_RX_TIMEOUT + else: + result = COMM_RX_CORRUPT + break + + self.portHandler.is_using = False + return rxpacket, result + + def txRxPacket(self, txpacket): + rxpacket = None + error = 0 + + # tx packet + result = self.txPacket(txpacket) + if result != COMM_SUCCESS: + return rxpacket, result, error + + # (ID == Broadcast ID) == no need to wait for status packet or not available + if (txpacket[PKT_ID] == BROADCAST_ID): + self.portHandler.is_using = False + return rxpacket, result, error + + # set packet timeout + if txpacket[PKT_INSTRUCTION] == INST_READ: + self.portHandler.setPacketTimeout(txpacket[PKT_PARAMETER0 + 1] + 6) + else: + self.portHandler.setPacketTimeout(6) # HEADER0 HEADER1 ID LENGTH ERROR CHECKSUM + + # rx packet + while True: + rxpacket, result = self.rxPacket() + if result != COMM_SUCCESS or txpacket[PKT_ID] == rxpacket[PKT_ID]: + break + + if result == COMM_SUCCESS and txpacket[PKT_ID] == rxpacket[PKT_ID]: + error = rxpacket[PKT_ERROR] + + return rxpacket, result, error + + def ping(self, sts_id): + model_number = 0 + error = 0 + + txpacket = [0] * 6 + + if sts_id >= BROADCAST_ID: + return model_number, COMM_NOT_AVAILABLE, error + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = 2 + txpacket[PKT_INSTRUCTION] = INST_PING + + rxpacket, result, error = self.txRxPacket(txpacket) + + if result == COMM_SUCCESS: + data_read, result, error = self.readTxRx(sts_id, 3, 2) # Address 3 : Model Number + if result == COMM_SUCCESS: + model_number = self.sts_makeword(data_read[0], data_read[1]) + + return model_number, result, error + + def action(self, sts_id): + txpacket = [0] * 6 + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = 2 + txpacket[PKT_INSTRUCTION] = INST_ACTION + + _, result, _ = self.txRxPacket(txpacket) + + return result + + def readTx(self, sts_id, address, length): + + txpacket = [0] * 8 + + if sts_id >= BROADCAST_ID: + return COMM_NOT_AVAILABLE + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = 4 + txpacket[PKT_INSTRUCTION] = INST_READ + txpacket[PKT_PARAMETER0 + 0] = address + txpacket[PKT_PARAMETER0 + 1] = length + + result = self.txPacket(txpacket) + + # set packet timeout + if result == COMM_SUCCESS: + self.portHandler.setPacketTimeout(length + 6) + + return result + + def readRx(self, sts_id, length): + result = COMM_TX_FAIL + error = 0 + + rxpacket = None + data = [] + + while True: + rxpacket, result = self.rxPacket() + + if result != COMM_SUCCESS or rxpacket[PKT_ID] == sts_id: + break + + if result == COMM_SUCCESS and rxpacket[PKT_ID] == sts_id: + error = rxpacket[PKT_ERROR] + + data.extend(rxpacket[PKT_PARAMETER0 : PKT_PARAMETER0+length]) + + return data, result, error + + def readTxRx(self, sts_id, address, length): + txpacket = [0] * 8 + data = [] + + if sts_id >= BROADCAST_ID: + return data, COMM_NOT_AVAILABLE, 0 + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = 4 + txpacket[PKT_INSTRUCTION] = INST_READ + txpacket[PKT_PARAMETER0 + 0] = address + txpacket[PKT_PARAMETER0 + 1] = length + + rxpacket, result, error = self.txRxPacket(txpacket) + if result == COMM_SUCCESS: + error = rxpacket[PKT_ERROR] + + data.extend(rxpacket[PKT_PARAMETER0 : PKT_PARAMETER0+length]) + + return data, result, error + + def read1ByteTx(self, sts_id, address): + return self.readTx(sts_id, address, 1) + + def read1ByteRx(self, sts_id): + data, result, error = self.readRx(sts_id, 1) + data_read = data[0] if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def read1ByteTxRx(self, sts_id, address): + data, result, error = self.readTxRx(sts_id, address, 1) + data_read = data[0] if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def read2ByteTx(self, sts_id, address): + return self.readTx(sts_id, address, 2) + + def read2ByteRx(self, sts_id): + data, result, error = self.readRx(sts_id, 2) + data_read = self.sts_makeword(data[0], data[1]) if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def read2ByteTxRx(self, sts_id, address): + data, result, error = self.readTxRx(sts_id, address, 2) + data_read = self.sts_makeword(data[0], data[1]) if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def read4ByteTx(self, sts_id, address): + return self.readTx(sts_id, address, 4) + + def read4ByteRx(self, sts_id): + data, result, error = self.readRx(sts_id, 4) + data_read = self.sts_makedword(self.sts_makeword(data[0], data[1]), + self.sts_makeword(data[2], data[3])) if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def read4ByteTxRx(self, sts_id, address): + data, result, error = self.readTxRx(sts_id, address, 4) + data_read = self.sts_makedword(self.sts_makeword(data[0], data[1]), + self.sts_makeword(data[2], data[3])) if (result == COMM_SUCCESS) else 0 + return data_read, result, error + + def writeTxOnly(self, sts_id, address, length, data): + txpacket = [0] * (length + 7) + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = length + 3 + txpacket[PKT_INSTRUCTION] = INST_WRITE + txpacket[PKT_PARAMETER0] = address + + txpacket[PKT_PARAMETER0 + 1: PKT_PARAMETER0 + 1 + length] = data[0: length] + + result = self.txPacket(txpacket) + self.portHandler.is_using = False + + return result + + def writeTxRx(self, sts_id, address, length, data): + txpacket = [0] * (length + 7) + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = length + 3 + txpacket[PKT_INSTRUCTION] = INST_WRITE + txpacket[PKT_PARAMETER0] = address + + txpacket[PKT_PARAMETER0 + 1: PKT_PARAMETER0 + 1 + length] = data[0: length] + rxpacket, result, error = self.txRxPacket(txpacket) + + return result, error + + def write1ByteTxOnly(self, sts_id, address, data): + data_write = [data] + return self.writeTxOnly(sts_id, address, 1, data_write) + + def write1ByteTxRx(self, sts_id, address, data): + data_write = [data] + return self.writeTxRx(sts_id, address, 1, data_write) + + def write2ByteTxOnly(self, sts_id, address, data): + data_write = [self.sts_lobyte(data), self.sts_hibyte(data)] + return self.writeTxOnly(sts_id, address, 2, data_write) + + def write2ByteTxRx(self, sts_id, address, data): + data_write = [self.sts_lobyte(data), self.sts_hibyte(data)] + return self.writeTxRx(sts_id, address, 2, data_write) + + def write4ByteTxOnly(self, sts_id, address, data): + data_write = [self.sts_lobyte(self.sts_loword(data)), + self.sts_hibyte(self.sts_loword(data)), + self.sts_lobyte(self.sts_hiword(data)), + self.sts_hibyte(self.sts_hiword(data))] + return self.writeTxOnly(sts_id, address, 4, data_write) + + def write4ByteTxRx(self, sts_id, address, data): + data_write = [self.sts_lobyte(self.sts_loword(data)), + self.sts_hibyte(self.sts_loword(data)), + self.sts_lobyte(self.sts_hiword(data)), + self.sts_hibyte(self.sts_hiword(data))] + return self.writeTxRx(sts_id, address, 4, data_write) + + def regWriteTxOnly(self, sts_id, address, length, data): + txpacket = [0] * (length + 7) + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = length + 3 + txpacket[PKT_INSTRUCTION] = INST_REG_WRITE + txpacket[PKT_PARAMETER0] = address + + txpacket[PKT_PARAMETER0 + 1: PKT_PARAMETER0 + 1 + length] = data[0: length] + + result = self.txPacket(txpacket) + self.portHandler.is_using = False + + return result + + def regWriteTxRx(self, sts_id, address, length, data): + txpacket = [0] * (length + 7) + + txpacket[PKT_ID] = sts_id + txpacket[PKT_LENGTH] = length + 3 + txpacket[PKT_INSTRUCTION] = INST_REG_WRITE + txpacket[PKT_PARAMETER0] = address + + txpacket[PKT_PARAMETER0 + 1: PKT_PARAMETER0 + 1 + length] = data[0: length] + + _, result, error = self.txRxPacket(txpacket) + + return result, error + + def syncReadTx(self, start_address, data_length, param, param_length): + txpacket = [0] * (param_length + 8) + # 8: HEADER0 HEADER1 ID LEN INST START_ADDR DATA_LEN CHKSUM + + txpacket[PKT_ID] = BROADCAST_ID + txpacket[PKT_LENGTH] = param_length + 4 # 7: INST START_ADDR DATA_LEN CHKSUM + txpacket[PKT_INSTRUCTION] = INST_SYNC_READ + txpacket[PKT_PARAMETER0 + 0] = start_address + txpacket[PKT_PARAMETER0 + 1] = data_length + + txpacket[PKT_PARAMETER0 + 2: PKT_PARAMETER0 + 2 + param_length] = param[0: param_length] + + # print(txpacket) + result = self.txPacket(txpacket) + return result + + def syncReadRx(self, data_length, param_length): + wait_length = (6 + data_length) * param_length + self.portHandler.setPacketTimeout(wait_length) + rxpacket = [] + rx_length = 0 + while True: + rxpacket.extend(self.portHandler.readPort(wait_length - rx_length)) + rx_length = len(rxpacket) + if rx_length >= wait_length: + result = COMM_SUCCESS + break + else: + # check timeout + if self.portHandler.isPacketTimeout(): + if rx_length == 0: + result = COMM_RX_TIMEOUT + else: + result = COMM_RX_CORRUPT + break + self.portHandler.is_using = False + return result, rxpacket + + def syncWriteTxOnly(self, start_address, data_length, param, param_length): + txpacket = [0] * (param_length + 8) + # 8: HEADER0 HEADER1 ID LEN INST START_ADDR DATA_LEN ... CHKSUM + + txpacket[PKT_ID] = BROADCAST_ID + txpacket[PKT_LENGTH] = param_length + 4 # 4: INST START_ADDR DATA_LEN ... CHKSUM + txpacket[PKT_INSTRUCTION] = INST_SYNC_WRITE + txpacket[PKT_PARAMETER0 + 0] = start_address + txpacket[PKT_PARAMETER0 + 1] = data_length + + txpacket[PKT_PARAMETER0 + 2: PKT_PARAMETER0 + 2 + param_length] = param[0: param_length] + + _, result, _ = self.txRxPacket(txpacket) + + return result diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/scscl.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/scscl.py new file mode 100644 index 0000000..0b64349 --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/scscl.py @@ -0,0 +1,104 @@ +#!/usr/bin/env python + +from .stservo_def import * +from .protocol_packet_handler import * +from .group_sync_write import * + +#波特率定义 +SCSCL_1M = 0 +SCSCL_0_5M = 1 +SCSCL_250K = 2 +SCSCL_128K = 3 +SCSCL_115200 = 4 +SCSCL_76800 = 5 +SCSCL_57600 = 6 +SCSCL_38400 = 7 + +#内存表定义 +#-------EPROM(只读)-------- +SCSCL_MODEL_L = 3 +SCSCL_MODEL_H = 4 + +#-------EPROM(读写)-------- +scs_id = 5 +SCSCL_BAUD_RATE = 6 +SCSCL_MIN_ANGLE_LIMIT_L = 9 +SCSCL_MIN_ANGLE_LIMIT_H = 10 +SCSCL_MAX_ANGLE_LIMIT_L = 11 +SCSCL_MAX_ANGLE_LIMIT_H = 12 +SCSCL_CW_DEAD = 26 +SCSCL_CCW_DEAD = 27 + +#-------SRAM(读写)-------- +SCSCL_TORQUE_ENABLE = 40 +SCSCL_GOAL_POSITION_L = 42 +SCSCL_GOAL_POSITION_H = 43 +SCSCL_GOAL_TIME_L = 44 +SCSCL_GOAL_TIME_H = 45 +SCSCL_GOAL_SPEED_L = 46 +SCSCL_GOAL_SPEED_H = 47 +SCSCL_LOCK = 48 + +#-------SRAM(只读)-------- +SCSCL_PRESENT_POSITION_L = 56 +SCSCL_PRESENT_POSITION_H = 57 +SCSCL_PRESENT_SPEED_L = 58 +SCSCL_PRESENT_SPEED_H = 59 +SCSCL_PRESENT_LOAD_L = 60 +SCSCL_PRESENT_LOAD_H = 61 +SCSCL_PRESENT_VOLTAGE = 62 +SCSCL_PRESENT_TEMPERATURE = 63 +SCSCL_MOVING = 66 +SCSCL_PRESENT_CURRENT_L = 69 +SCSCL_PRESENT_CURRENT_H = 70 + +class scscl(protocol_packet_handler): + def __init__(self, portHandler): + protocol_packet_handler.__init__(self, portHandler, 1) + self.groupSyncWrite = GroupSyncWrite(self, SCSCL_GOAL_POSITION_L, 6) + + def WritePos(self, scs_id, position, time, speed): + txpacket = [self.scs_lobyte(position), self.scs_hibyte(position), self.scs_lobyte(time), self.scs_hibyte(time), self.scs_lobyte(speed), self.scs_hibyte(speed)] + return self.writeTxRx(scs_id, SCSCL_GOAL_POSITION_L, len(txpacket), txpacket) + + def ReadPos(self, scs_id): + scs_present_position, scs_comm_result, scs_error = self.read2ByteTxRx(scs_id, SCSCL_PRESENT_POSITION_L) + return scs_present_position, scs_comm_result, scs_error + + def ReadSpeed(self, scs_id): + scs_present_speed, scs_comm_result, scs_error = self.read2ByteTxRx(scs_id, SCSCL_PRESENT_SPEED_L) + return self.scs_tohost(scs_present_speed, 15), scs_comm_result, scs_error + + def ReadPosSpeed(self, scs_id): + scs_present_position_speed, scs_comm_result, scs_error = self.read4ByteTxRx(scs_id, SCSCL_PRESENT_POSITION_L) + scs_present_position = self.scs_loword(scs_present_position_speed) + scs_present_speed = self.scs_hiword(scs_present_position_speed) + return scs_present_position, self.scs_tohost(scs_present_speed, 15), scs_comm_result, scs_error + + def ReadMoving(self, scs_id): + moving, scs_comm_result, scs_error = self.read1ByteTxRx(scs_id, SCSCL_MOVING) + return moving, scs_comm_result, scs_error + + def SyncWritePos(self, scs_id, position, time, speed): + txpacket = [self.scs_lobyte(position), self.scs_hibyte(position), self.scs_lobyte(time), self.scs_hibyte(time), self.scs_lobyte(speed), self.scs_hibyte(speed)] + return self.groupSyncWrite.addParam(scs_id, txpacket) + + def RegWritePos(self, scs_id, position, time, speed): + txpacket = [self.scs_lobyte(position), self.scs_hibyte(position), self.scs_lobyte(time), self.scs_hibyte(time), self.scs_lobyte(speed), self.scs_hibyte(speed)] + return self.regWriteTxRx(scs_id, SCSCL_GOAL_POSITION_L, len(txpacket), txpacket) + + def RegAction(self): + return self.action(BROADCAST_ID) + + def PWMMode(self, scs_id): + txpacket = [0, 0, 0, 0] + return self.writeTxRx(scs_id, SCSCL_MIN_ANGLE_LIMIT_L, len(txpacket), txpacket) + + def WritePWM(self, scs_id, time): + return self.write2ByteTxRx(scs_id, SCSCL_GOAL_TIME_L, self.scs_toscs(time, 10)) + + def LockEprom(self, scs_id): + return self.write1ByteTxRx(scs_id, SCSCL_LOCK, 1) + + def unLockEprom(self, scs_id): + return self.write1ByteTxRx(scs_id, SCSCL_LOCK, 0) diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/sts.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/sts.py new file mode 100644 index 0000000..7d92ef7 --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/sts.py @@ -0,0 +1,111 @@ +#!/usr/bin/env python + +from .stservo_def import * +from .protocol_packet_handler import * +from .group_sync_read import * +from .group_sync_write import * + +#波特率定义 +STS_1M = 0 +STS_0_5M = 1 +STS_250K = 2 +STS_128K = 3 +STS_115200 = 4 +STS_76800 = 5 +STS_57600 = 6 +STS_38400 = 7 + +#内存表定义 +#-------EPROM(只读)-------- +STS_MODEL_L = 3 +STS_MODEL_H = 4 + +#-------EPROM(读写)-------- +STS_ID = 5 +STS_BAUD_RATE = 6 +STS_MIN_ANGLE_LIMIT_L = 9 +STS_MIN_ANGLE_LIMIT_H = 10 +STS_MAX_ANGLE_LIMIT_L = 11 +STS_MAX_ANGLE_LIMIT_H = 12 +STS_CW_DEAD = 26 +STS_CCW_DEAD = 27 +STS_OFS_L = 31 +STS_OFS_H = 32 +STS_MODE = 33 + +#-------SRAM(读写)-------- +STS_TORQUE_ENABLE = 40 +STS_ACC = 41 +STS_GOAL_POSITION_L = 42 +STS_GOAL_POSITION_H = 43 +STS_GOAL_TIME_L = 44 +STS_GOAL_TIME_H = 45 +STS_GOAL_SPEED_L = 46 +STS_GOAL_SPEED_H = 47 +STS_LOCK = 55 + +#-------SRAM(只读)-------- +STS_PRESENT_POSITION_L = 56 +STS_PRESENT_POSITION_H = 57 +STS_PRESENT_SPEED_L = 58 +STS_PRESENT_SPEED_H = 59 +STS_PRESENT_LOAD_L = 60 +STS_PRESENT_LOAD_H = 61 +STS_PRESENT_VOLTAGE = 62 +STS_PRESENT_TEMPERATURE = 63 +STS_MOVING = 66 +STS_PRESENT_CURRENT_L = 69 +STS_PRESENT_CURRENT_H = 70 + +class sts(protocol_packet_handler): + def __init__(self, portHandler): + protocol_packet_handler.__init__(self, portHandler, 0) + self.groupSyncWrite = GroupSyncWrite(self, STS_ACC, 7) + + def WritePosEx(self, sts_id, position, speed, acc): + txpacket = [acc, self.sts_lobyte(position), self.sts_hibyte(position), 0, 0, self.sts_lobyte(speed), self.sts_hibyte(speed)] + return self.writeTxRx(sts_id, STS_ACC, len(txpacket), txpacket) + + def ReadPos(self, sts_id): + sts_present_position, sts_comm_result, sts_error = self.read2ByteTxRx(sts_id, STS_PRESENT_POSITION_L) + return self.sts_tohost(sts_present_position, 15), sts_comm_result, sts_error + + def ReadSpeed(self, sts_id): + sts_present_speed, sts_comm_result, sts_error = self.read2ByteTxRx(sts_id, STS_PRESENT_SPEED_L) + return self.sts_tohost(sts_present_speed, 15), sts_comm_result, sts_error + + def ReadPosSpeed(self, sts_id): + sts_present_position_speed, sts_comm_result, sts_error = self.read4ByteTxRx(sts_id, STS_PRESENT_POSITION_L) + sts_present_position = self.sts_loword(sts_present_position_speed) + sts_present_speed = self.sts_hiword(sts_present_position_speed) + return self.sts_tohost(sts_present_position, 15), self.sts_tohost(sts_present_speed, 15), sts_comm_result, sts_error + + def ReadMoving(self, sts_id): + moving, sts_comm_result, sts_error = self.read1ByteTxRx(sts_id, STS_MOVING) + return moving, sts_comm_result, sts_error + + def SyncWritePosEx(self, sts_id, position, speed, acc): + txpacket = [acc, self.sts_lobyte(position), self.sts_hibyte(position), 0, 0, self.sts_lobyte(speed), self.sts_hibyte(speed)] + return self.groupSyncWrite.addParam(sts_id, txpacket) + + def RegWritePosEx(self, sts_id, position, speed, acc): + txpacket = [acc, self.sts_lobyte(position), self.sts_hibyte(position), 0, 0, self.sts_lobyte(speed), self.sts_hibyte(speed)] + return self.regWriteTxRx(sts_id, STS_ACC, len(txpacket), txpacket) + + def RegAction(self): + return self.action(BROADCAST_ID) + + def WheelMode(self, sts_id): + return self.write1ByteTxRx(sts_id, STS_MODE, 1) + + def WriteSpec(self, sts_id, speed, acc): + speed = self.sts_toscs(speed, 15) + txpacket = [acc, 0, 0, 0, 0, self.sts_lobyte(speed), self.sts_hibyte(speed)] + return self.writeTxRx(sts_id, STS_ACC, len(txpacket), txpacket) + + def LockEprom(self, sts_id): + return self.write1ByteTxRx(sts_id, STS_LOCK, 1) + + def unLockEprom(self, sts_id): + return self.write1ByteTxRx(sts_id, STS_LOCK, 0) + diff --git a/ST3215/STServo_Python/stservo-env/STservo_sdk/stservo_def.py b/ST3215/STServo_Python/stservo-env/STservo_sdk/stservo_def.py new file mode 100644 index 0000000..a5fb1f5 --- /dev/null +++ b/ST3215/STServo_Python/stservo-env/STservo_sdk/stservo_def.py @@ -0,0 +1,25 @@ +#!/usr/bin/env python + +BROADCAST_ID = 0xFE # 254 +MAX_ID = 0xFC # 252 +STS_END = 0 + +# Instruction for STS Protocol +INST_PING = 1 +INST_READ = 2 +INST_WRITE = 3 +INST_REG_WRITE = 4 +INST_ACTION = 5 +INST_SYNC_WRITE = 131 # 0x83 +INST_SYNC_READ = 130 # 0x82 + +# Communication Result +COMM_SUCCESS = 0 # tx or rx packet communication success +COMM_PORT_BUSY = -1 # Port is busy (in use) +COMM_TX_FAIL = -2 # Failed transmit instruction packet +COMM_RX_FAIL = -3 # Failed get status packet +COMM_TX_ERROR = -4 # Incorrect instruction packet +COMM_RX_WAITING = -5 # Now recieving status packet +COMM_RX_TIMEOUT = -6 # There is no status packet +COMM_RX_CORRUPT = -7 # Incorrect status packet +COMM_NOT_AVAILABLE = -9 #