1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
| #include "Servo_STS3032.h"
#include <stddef.h>//飞特串行舵机通信层协议程序
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<nLen; i++){
CheckSum += nDat[i];
}
writeSCS(nDat, nLen);
}
writeSCS(~CheckSum);
} //同步写指令
//舵机ID[]数组，IDN数组长度，MemAddr内存表地址，写入数据，写入长度
void SCS::syncWrite(u8 ID[], u8 IDN, u8 MemAddr, u8 *nDat, u8 nLen)
{
rFlushSCS();
u8 mesLen = ((nLen+1)*IDN+4);
u8 Sum = 0;
u8 bBuf[7];
bBuf[0] = 0xff;
bBuf[1] = 0xff;
bBuf[2] = 0xfe;
bBuf[3] = mesLen;
bBuf[4] = INST_SYNC_WRITE;
bBuf[5] = MemAddr;
bBuf[6] = nLen;
writeSCS(bBuf, 7); Sum = 0xfe + mesLen + INST_SYNC_WRITE + MemAddr + nLen;
u8 i, j;
for(i=0; i<IDN; i++){
writeSCS(ID[i]);
writeSCS(nDat+i*nLen, nLen);
Sum += ID[i];
for(j=0; j<nLen; j++){
Sum += nDat[i*nLen+j];
}
}
writeSCS(~Sum);
wFlushSCS();
} //读指令
//舵机ID，MemAddr内存表地址，返回数据nData，数据长度nLen
int SCS::Read(u8 ID, u8 MemAddr, u8 *nData, u8 nLen)
{
rFlushSCS();
writeBuf(ID, MemAddr, &nLen, 1, INST_READ);
wFlushSCS();
if(!checkHead()){
return 0;
}
u8 bBuf[4];
Error = 0;
if(readSCS(bBuf, 3)!=3){
return 0;
}
if(bBuf[0]!=ID && ID!=0xfe){
return 0;
}
if(bBuf[1]!=(nLen+2)){
return 0;
}
int Size = readSCS(nData, nLen);
if(Size!=nLen){
return 0;
}
if(readSCS(bBuf+3, 1)!=1){
return 0;
}
u8 calSum = bBuf[0]+bBuf[1]+bBuf[2];
u8 i;
for(i=0; i<Size; i++){
calSum += nData[i];
}
calSum = ~calSum;
if(calSum!=bBuf[3]){
return 0;
}
Error = bBuf[2];
return Size;
} //读2字节，超时返回-1
int SCS::readWord(u8 ID, u8 MemAddr)
{
u8 nDat[2];
int Size;
u16 wDat;
Size = Read(ID, MemAddr, nDat, 2);
if(Size!=2)
return -1;
wDat = SCS2Host(nDat[0], nDat[1]);
return wDat;
} int SCS::checkHead()
{
u8 bDat;
u8 bBuf[] = {0, 0};
u8 Cnt = 0;
while(1){
if(!readSCS(&bDat, 1)){
return 0;
}
bBuf[1] = bBuf[0];
bBuf[0] = bDat;
if(bBuf[0]==0xff && bBuf[1]==0xff){
break;
}
Cnt++;
if(Cnt>10){
return 0;
}
}
return 1;
}
//飞特串行舵机硬件接口层程序
SCSerial::SCSerial()
{
IOTimeOut = 10;
pSerial = NULL;
}
SCSerial::SCSerial(u8 End):SCS(End)
{
IOTimeOut = 10;
pSerial = NULL;
}
SCSerial::SCSerial(u8 End, u8 Level):SCS(End, Level)
{
IOTimeOut = 10;
pSerial = NULL;
}
int SCSerial::readSCS(unsigned char *nDat, int nLen)
{
int Size = 0;
int ComData;
unsigned long t_begin = millis();
unsigned long t_user;
while(1){
ComData = pSerial->read();
if(ComData!=-1){
if(nDat){
nDat[Size] = ComData;
}
Size++;
t_begin = millis();
}
if(Size>=nLen){
break;
}
t_user = millis() - t_begin;
if(t_user>IOTimeOut){
break;
}
}
return Size;
}
int SCSerial::writeSCS(unsigned char *nDat, int nLen)
{
if(nDat==NULL){
return 0;
}
return pSerial->write(nDat, nLen);
}
int SCSerial::writeSCS(unsigned char bDat)
{
return pSerial->write(&bDat, 1);
}
void SCSerial::rFlushSCS()
{
while(pSerial->read()!=-1);
}
void SCSerial::wFlushSCS()
{
} //飞特SMS_STS系列串行舵机应用层程序
void SMS_STS::SyncWritePosEx(u8 ID[], u8 IDN, s16 Position[], u16 Speed[], u8 ACC[])
{
u8 offbuf[7*IDN];
for(u8 i = 0; i<IDN; i++){
if(Position[i]<0){
Position[i] = -Position[i];
Position[i] |= (1<<15);
}
u16 V;
if(Speed){
V = Speed[i];
}else{
V = 0;
}
if(ACC){
offbuf[i*7] = ACC[i];
}else{
offbuf[i*7] = 0;
}
Host2SCS(offbuf+i*7+1, offbuf+i*7+2, Position[i]);
Host2SCS(offbuf+i*7+3, offbuf+i*7+4, 0);
Host2SCS(offbuf+i*7+5, offbuf+i*7+6, V);
}
syncWrite(ID, IDN, SMS_STS_ACC, offbuf, 7);
}
// 根据舵机ID获取舵机输出至电机的电压百分比(0~1000)
int SMS_STS::ReadLoad(int ID)
{
int Load = -1;
if(ID==-1){
Load = Mem[SMS_STS_PRESENT_LOAD_H-SMS_STS_PRESENT_POSITION_L];
Load <<= 8;
Load |= Mem[SMS_STS_PRESENT_LOAD_L-SMS_STS_PRESENT_POSITION_L];
}else{
Err = 0;
Load = readWord(ID, SMS_STS_PRESENT_LOAD_L);
if(Load==-1){
Err = 1;
}
}
if(!Err && (Load&(1<<10))){
Load = -(Load&~(1<<10));
}
return Load;
}
|
