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Rev 1378 | Rev 1550 | ||
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4 | #include "main.h" |
4 | #include "main.h" |
Line 5... | Line 5... | ||
5 | 5 | ||
6 | volatile unsigned char twi_state = 0; |
6 | volatile unsigned char twi_state = 0; |
7 | unsigned char motor = 0; |
7 | unsigned char motor = 0; |
8 | unsigned char motorread = 0,MissingMotor = 0; |
- | |
9 | unsigned char motor_rx[16],motor_rx2[16]; |
- | |
- | 8 | unsigned char motorread = 0,MissingMotor = 0; |
|
10 | unsigned char MotorPresent[MAX_MOTORS]; |
9 | |
- | 10 | MotorData_t Motor[MAX_MOTORS]; |
|
11 | unsigned char MotorError[MAX_MOTORS]; |
11 | |
Line 12... | Line 12... | ||
12 | unsigned int I2CError = 0; |
12 | unsigned int I2CError = 0; |
13 | 13 | ||
14 | //############################################################################ |
14 | //############################################################################ |
15 | //Initzialisieren der I2C (TWI) Schnittstelle |
15 | //Initzialisieren der I2C (TWI) Schnittstelle |
16 | void i2c_init(void) |
16 | void i2c_init(void) |
17 | //############################################################################ |
17 | //############################################################################ |
18 | { |
18 | { |
19 | TWSR = 0; |
19 | TWSR = 0; |
Line 20... | Line 20... | ||
20 | TWBR = ((SYSCLK/SCL_CLOCK)-16)/2; |
20 | TWBR = ((SYSCLK/SCL_CLOCK)-16)/2; |
21 | } |
21 | } |
22 | 22 | ||
23 | //############################################################################ |
23 | //############################################################################ |
24 | //Start I2C |
24 | //Start I2C |
25 | void i2c_start(void) |
25 | void i2c_start(void) |
26 | //############################################################################ |
26 | //############################################################################ |
Line 36... | Line 36... | ||
36 | } |
36 | } |
Line 37... | Line 37... | ||
37 | 37 | ||
38 | void i2c_reset(void) |
38 | void i2c_reset(void) |
39 | //############################################################################ |
39 | //############################################################################ |
40 | { |
40 | { |
41 | i2c_stop(); |
41 | i2c_stop(); |
42 | twi_state = 0; |
42 | twi_state = 0; |
43 | motor = TWDR; |
43 | motor = TWDR; |
44 | motor = 0; |
44 | motor = 0; |
45 | TWCR = 0x80; |
45 | TWCR = 0x80; |
Line 54... | Line 54... | ||
54 | } |
54 | } |
Line 55... | Line 55... | ||
55 | 55 | ||
56 | //############################################################################ |
56 | //############################################################################ |
57 | void i2c_write_byte(char byte) |
57 | void i2c_write_byte(char byte) |
58 | //############################################################################ |
58 | //############################################################################ |
59 | { |
59 | { |
60 | TWSR = 0x00; |
60 | TWSR = 0x00; |
61 | TWDR = byte; |
61 | TWDR = byte; |
62 | TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWIE); |
62 | TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWIE); |
Line 103... | Line 103... | ||
103 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
103 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
104 | // Writing the Data |
104 | // Writing the Data |
105 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
105 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
106 | case 0: |
106 | case 0: |
107 | while(Mixer.Motor[motor][0] <= 0 && motor < MAX_MOTORS) motor++; // skip if not used |
107 | while(Mixer.Motor[motor][0] <= 0 && motor < MAX_MOTORS) motor++; // skip if not used |
108 | if(motor == MAX_MOTORS) // writing finished -> now read |
108 | if(motor == MAX_MOTORS) // writing finished -> now read |
109 | { |
109 | { |
110 | motor = 0; |
110 | motor = 0; |
111 | twi_state = 3; |
111 | twi_state = 3; |
112 | i2c_write_byte(0x53+(motorread*2)); |
112 | i2c_write_byte(0x53+(motorread*2)); |
113 | } |
113 | } |
114 | else i2c_write_byte(0x52+(motor*2)); |
114 | else i2c_write_byte(0x52+(motor*2)); |
115 | break; |
115 | break; |
116 | case 1: |
116 | case 1: |
117 | i2c_write_byte(Motor[motor++]); |
117 | i2c_write_byte(Motor[motor++].SetPoint); |
118 | break; |
118 | break; |
119 | case 2: |
119 | case 2: |
120 | if(TWSR == 0x30) |
120 | if(TWSR == 0x30) |
121 | { |
121 | { |
122 | if(!missing_motor) missing_motor = motor; |
122 | if(!missing_motor) missing_motor = motor; |
123 | if(++MotorError[motor-1] == 0) MotorError[motor-1] = 255; |
123 | if((Motor[motor-1].State & MOTOR_STATE_ERROR_MASK) < MOTOR_STATE_ERROR_MASK) Motor[motor-1].State++; // increment error counter and handle overflow |
124 | } |
124 | } |
125 | i2c_stop(); |
125 | i2c_stop(); |
126 | I2CTimeout = 10; |
126 | I2CTimeout = 10; |
127 | twi_state = 0; |
127 | twi_state = 0; |
128 | i2c_start(); |
128 | i2c_start(); |
129 | break; |
129 | break; |
130 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
130 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
131 | // Reading Data |
131 | // Reading Data |
132 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
132 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
133 | case 3: |
133 | case 3: |
134 | //Transmit 1st byte for reading |
134 | //Transmit 1st byte for reading |
135 | if(TWSR != 0x40) // Error? |
135 | if(TWSR != 0x40) // Error? |
136 | { |
136 | { |
137 | MotorPresent[motorread] = 0; |
137 | Motor[motorread].State &= ~MOTOR_STATE_PRESENT_MASK; // clear present bit |
138 | motorread++; |
138 | motorread++; |
139 | if(motorread >= MAX_MOTORS) motorread = 0; |
139 | if(motorread >= MAX_MOTORS) motorread = 0; |
140 | i2c_stop(); |
140 | i2c_stop(); |
141 | twi_state = 0; |
141 | twi_state = 0; |
142 | } |
142 | } |
143 | else |
143 | else |
144 | { |
144 | { |
145 | MotorPresent[motorread] = ('1' - '-') + motorread; |
145 | Motor[motorread].State |= MOTOR_STATE_PRESENT_MASK; // set present bit |
146 | I2C_ReceiveByte(); |
146 | I2C_ReceiveByte(); |
147 | } |
147 | } |
148 | MissingMotor = missing_motor; |
148 | MissingMotor = missing_motor; |
149 | missing_motor = 0; |
149 | missing_motor = 0; |
150 | break; |
150 | break; |
151 | case 4: //Read 1st byte and transmit 2nd Byte |
151 | case 4: //Read 1st byte and transmit 2nd Byte |
152 | motor_rx[motorread] = TWDR; |
152 | Motor[motorread].Current = TWDR; |
153 | I2C_ReceiveLastByte(); //nack |
153 | I2C_ReceiveLastByte(); //nack |
154 | break; |
154 | break; |
155 | case 5: |
155 | case 5: |
156 | //Read 2nd byte |
156 | //Read 2nd byte |
157 | motor_rx2[motorread++] = TWDR; |
157 | Motor[motorread].MaxPWM = TWDR; |
- | 158 | motorread++; // next motor |
|
158 | if(motorread >= MAX_MOTORS) motorread = 0; |
159 | if(motorread >= MAX_MOTORS) motorread = 0; |
159 | i2c_stop(); |
160 | i2c_stop(); |
160 | twi_state = 0; |
161 | twi_state = 0; |
161 | break; |
162 | break; |
162 | 163 | ||
163 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
164 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
164 | // writing Gyro-Offset |
165 | // writing Gyro-Offset |
165 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
166 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
166 | case 8: |
167 | case 8: |
167 | i2c_write_byte(0x98); // Address of the DAC |
168 | i2c_write_byte(0x98); // Address of the DAC |
168 | break; |
169 | break; |
169 | case 9: |
170 | case 9: |
170 | i2c_write_byte(0x10); // Update Channel A |
171 | i2c_write_byte(0x10); // Update Channel A |
171 | break; |
172 | break; |
172 | case 10: |
173 | case 10: |
173 | i2c_write_byte(AnalogOffsetNick); // Value |
174 | i2c_write_byte(AnalogOffsetNick); // Value |
174 | break; |
175 | break; |
175 | case 11: |
176 | case 11: |
176 | i2c_write_byte(0x80); // Value |
177 | i2c_write_byte(0x80); // Value |
177 | break; |
178 | break; |
178 | case 12: |
179 | case 12: |
179 | i2c_stop(); |
180 | i2c_stop(); |
180 | I2CTimeout = 10; |
181 | I2CTimeout = 10; |
181 | i2c_start(); |
182 | i2c_start(); |
182 | break; |
183 | break; |
183 | case 13: |
184 | case 13: |
184 | i2c_write_byte(0x98); // Address of the DAC |
185 | i2c_write_byte(0x98); // Address of the DAC |
185 | break; |
186 | break; |
186 | case 14: |
187 | case 14: |
187 | i2c_write_byte(0x12); // Update Channel B |
188 | i2c_write_byte(0x12); // Update Channel B |
188 | break; |
189 | break; |
189 | case 15: |
190 | case 15: |
190 | i2c_write_byte(AnalogOffsetRoll); // Value |
191 | i2c_write_byte(AnalogOffsetRoll); // Value |
191 | break; |
192 | break; |
192 | case 16: |
193 | case 16: |
193 | i2c_write_byte(0x80); // Value |
194 | i2c_write_byte(0x80); // Value |
194 | break; |
195 | break; |
195 | case 17: |
196 | case 17: |
196 | i2c_stop(); |
197 | i2c_stop(); |
197 | I2CTimeout = 10; |
198 | I2CTimeout = 10; |
198 | i2c_start(); |
199 | i2c_start(); |
199 | break; |
200 | break; |
200 | case 18: |
201 | case 18: |
201 | i2c_write_byte(0x98); // Address of the DAC |
202 | i2c_write_byte(0x98); // Address of the DAC |
202 | break; |
203 | break; |
203 | case 19: |
204 | case 19: |
204 | i2c_write_byte(0x14); // Update Channel C |
205 | i2c_write_byte(0x14); // Update Channel C |
205 | break; |
206 | break; |
206 | case 20: |
207 | case 20: |
207 | i2c_write_byte(AnalogOffsetGier); // Value |
208 | i2c_write_byte(AnalogOffsetGier); // Value |
208 | break; |
209 | break; |
209 | case 21: |
210 | case 21: |
210 | i2c_write_byte(0x80); // Value |
211 | i2c_write_byte(0x80); // Value |
211 | break; |
212 | break; |
212 | case 22: |
213 | case 22: |
213 | i2c_stop(); |
214 | i2c_stop(); |
214 | I2CTimeout = 10; |
215 | I2CTimeout = 10; |
215 | twi_state = 0; |
216 | twi_state = 0; |
216 | break; |
217 | break; |
217 | default: twi_state = 0; |
218 | default: twi_state = 0; |
218 | break; |
219 | break; |
219 | } |
220 | } |
220 | TWCR |= 0x80; |
221 | TWCR |= 0x80; |
221 | } |
222 | } |