diff options
author | meyma <devnull@localhost> | 2007-02-22 15:08:01 +0100 |
---|---|---|
committer | meyma <devnull@localhost> | 2007-02-22 15:08:01 +0100 |
commit | d7ac8f546afb75bd2d626b5cc639939337560cf6 (patch) | |
tree | aeb7468317733fe3b6a07d83ce7e0c20effa6f27 /source | |
parent | 655dd7522fb60e2ef0e68437337178184109f347 (diff) | |
download | rc2007-soccer-d7ac8f546afb75bd2d626b5cc639939337560cf6.tar rc2007-soccer-d7ac8f546afb75bd2d626b5cc639939337560cf6.zip |
We have a SRF10, not SRF05
Diffstat (limited to 'source')
-rwxr-xr-x | source/Concept/Framework/atmega128io.c | 172 | ||||
-rw-r--r-- | source/Concept/Framework/atmega128io.h | 95 | ||||
-rwxr-xr-x | source/Concept/Framework/modules/input/distance_sensor.c | 176 | ||||
-rwxr-xr-x | source/Concept/Framework/modules/input/distance_sensor.h | 102 |
4 files changed, 470 insertions, 75 deletions
diff --git a/source/Concept/Framework/atmega128io.c b/source/Concept/Framework/atmega128io.c index b1d6f4d..94e0f94 100755 --- a/source/Concept/Framework/atmega128io.c +++ b/source/Concept/Framework/atmega128io.c @@ -580,6 +580,174 @@ void uart1_puts_p(const char *progmem_s ) uart1_putc(c);
}/* uart1_puts_p */
-
-
+ +///////////////////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////// +// TWI-Driver + + +/*! + * TWI Bus initialsieren + * @return Resultat der Aktion + */ + +int8 Init_TWI(void){ + TWAR = OWN_ADR; /*!< Eigenen Slave Adresse setzen */ + TWBR = 12; /*!< Setze Baudrate auf 100 KHz */ + /*!< 4 MHz xtal */ + TWCR = (1<<TWEN); /*!< TWI-Interface einschalten */ + + return 1; +} + +/*! + * TWI Buss schliesen + * @return Resultat der Aktion + */ + +int8 Close_TWI(void){ + TWCR = (0<<TWEN); /*!< TWI-Interface ausschalten */ + + return 0; +} + +/*! + * Warte auf TWI interrupt + */ + +void Wait_TWI_int(void){ + while (!(TWCR & (1<<TWINT))) + ; +} + +/*! + * Sende Start Sequence + * @return Resultat der Aktion + */ + +uint8 Send_start(void){ + TWCR = ((1<<TWINT)+(1<<TWSTA)+(1<<TWEN)); /*!< Sende START */ + + Wait_TWI_int(); /*!< Warte auf TWI interrupt */ + + if((TWSR != START)&&(TWSR != REP_START)) /*!< Ist der Status ein Anderer als Start (0x08) oder wiederholter Start (0x10) */ + return TWSR; /*!< -> error und Rueckgabe TWSR. */ + return SUCCESS; /*!< wenn OK Rueckgabe SUCCESS */ +} + +/*! + * Sende Stop Sequence + */ + +void Send_stop(void){ + TWCR = ((1<<TWEN)+(1<<TWINT)+(1<<TWSTO)); +} + +/*! + * Hier wird der eigentliche TWI-Treiber angesprochen + * @param *data_pack Container mit den Daten fuer den Treiber + * @return Resultat der Aktion + */ +uint8 Send_to_TWI(tx_type *data_pack){ + uint8 state,i,j; + + state = SUCCESS; + + for(i=0;(data_pack[i].slave_adr != OWN_ADR)&&(state == SUCCESS);i++) { + state = Send_start(); + if (state == SUCCESS) + state = Send_adr(data_pack[i].slave_adr); + + /*! + * Abhaengig von W/R senden oder empfangen + */ + if(!(data_pack[i].slave_adr & R)) { + if (state == SUCCESS){ + /*! + * Wenn W bis alle Daten gesendet sind + */ + for(j=0;((j<data_pack[i].size)&&(state == SUCCESS));j++) + state = Send_byte(data_pack[i].data_ptr[j]); + } + } + else{ + if (state == MRX_ADR_NACK) { + state = Send_start(); + } + + if (state == SUCCESS){ + /*! + * Wenn R bis alle Daten empfangen sind + */ + for(j=0;((j<data_pack[i].size)&&(state == SUCCESS));j++){ + /*! + * Wenn wir keine Daten mehr erwarten NACK senden + */ + if(j == data_pack[i].size-1) + state = Get_byte(data_pack[i].data_ptr++,0); + else + state = Get_byte(data_pack[i].data_ptr++,1); + } + } + } + Send_stop(); + } + Close_TWI(); + + return state; +} + +/*! + * Sende ein Byte + * @param data das zu uebertragende Byte + */ + +uint8 Send_byte(uint8 data){ + Wait_TWI_int(); + TWDR = data; + TWCR = ((1<<TWINT)+(1<<TWEN)); + Wait_TWI_int(); + if(TWSR != MTX_DATA_ACK) + return TWSR; + return SUCCESS; +} + +/*! + * Sende Slave Adresse + * @param adr die gewuenschte Adresse + * @return Resultat der Aktion + */ + +uint8 Send_adr(uint8 adr){ + Wait_TWI_int(); + TWDR = adr; + TWCR = ((1<<TWINT)+(1<<TWEN)); + Wait_TWI_int(); + if((TWSR != MTX_ADR_ACK)&&(TWSR != MRX_ADR_ACK)) + return TWSR; + return SUCCESS; +} + +/*! + * Empfange ein Byte + * @param *rx_ptr Container fuer die Daten + * @param last_byte Flag ob noch Daten erwartet werden + * @return Resultat der Aktion + */ + +uint8 Get_byte(uint8 *rx_ptr,uint8 last_byte){ + Wait_TWI_int(); + if(last_byte) + TWCR = ((1<<TWINT)+(1<<TWEA)+(1<<TWEN)); + else + TWCR = ((1<<TWINT)+(1<<TWEN)); + Wait_TWI_int(); + *rx_ptr = TWDR; + if(((TWSR == MRX_DATA_NACK)&&(last_byte == 0))||(TWSR == MRX_DATA_ACK)) + return SUCCESS; + return TWSR; +} +
#endif
diff --git a/source/Concept/Framework/atmega128io.h b/source/Concept/Framework/atmega128io.h index ed526ae..a3384a4 100644 --- a/source/Concept/Framework/atmega128io.h +++ b/source/Concept/Framework/atmega128io.h @@ -178,6 +178,99 @@ extern void uart1_puts_p(const char *s ); /** @brief Macro to automatically put a string constant into program memory */
#define uart1_puts_P(__s) uart1_puts_p(PSTR(__s))
-/**@}*/
+/**@}*/ + +///////////////////////////////////////////////////// +///////////////////////////////////////////////////// +// TWI-Driver + + /*! + Struktur Definition + tx_type ist eine Datenstruktur um den TWI Treiber anzusprechen + und behinhaltet folgende Informationen: + Slave Adresse + Datenrichtung + Anzahl der zu uebertragendenden Bytes (Senden oder Empfangen) + Pointer auf den Sende- oder Empfangspuffer + */ + typedef struct + { + uint8 slave_adr; /*!< Slave Adresse and W/R byte */ + uint8 size; /*!< Anzahl der Bytes, die gesendet oder empfagen werden sollen */ + uint8 *data_ptr; /*!< Pointer zum Sende und Empfangs Puffer */ + }tx_type; + +/*! + * Hier wird der eigentliche TWI-Treiber angesprochen + * @param *data_pack Container mit den Daten fuer den Treiber + * @return Resultat der Aktion + */ + extern uint8 Send_to_TWI(tx_type *data_pack); +/*! + * Sende ein Byte + * @param data das zu uebertragende Byte + */ + extern uint8 Send_byte(uint8 data); +/*! + * Empfange ein Byte + * @param *rx_ptr Container f�r die Daten + * @param last_byte Flag ob noch Daten erwartet werden + * @return Resultat der Aktion + */ + extern uint8 Get_byte(uint8 *rx_ptr, uint8 last_byte); +/*! + * Sende Start Sequence + * @return Resultat der Aktion + */ + extern uint8 Send_start(void); +/*! + * Sende Slave Adresse + * @param adr die gewuenschte Adresse + * @return Resultat der Aktion + */ + extern uint8 Send_adr(uint8 adr); +/*! + * Sende Stop Sequence + */ + extern void Send_stop(void); +/*! + * Warte auf TWI interrupt + */ + extern void Wait_TWI_int(void); + +/*! + * TWI Bus initialsieren + * @return Resultat der Aktion + */ + extern int8 Init_TWI(void); +/*! + * TWI Bus schliesen + * @return Resultat der Aktion + */ + extern int8 Close_TWI(void); + + #define W 0 /*!< Daten Transfer Richtung Schreiben */ + #define R 1 /*!< Daten Transfer Richtung Lesen */ + #define OWN_ADR 60 /*!< Die eigene Slave Adresse */ + #define SUCCESS 0xFF /*!< Status Code alles OK */ + + /*! + TWI Stautus Register Definitionen + */ + + /*!< Genereller Master Statuscode */ + #define START 0x08 /*!< START wurde uebertragen */ + #define REP_START 0x10 /*!< Wiederholter START wurde uebertragen */ + /*!< Master Sender Statuscode */ + #define MTX_ADR_ACK 0x18 /*!< SLA+W wurde uebertragen und ACK empfangen */ + #define MTX_ADR_NACK 0x20 /*!< SLA+W wurde uebertragen und NACK empfangen */ + #define MTX_DATA_ACK 0x28 /*!< Datenbyte wurde uebertragen und ACK empfangen */ + #define MTX_DATA_NACK 0x30 /*!< Datenbyte wurde uebertragen und NACK empfangen */ + #define MTX_ARB_LOST 0x38 /*!< Schlichtung verloren in SLA+W oder Datenbytes */ + /*!< Master Empfaenger Statuscode */ + #define MRX_ARB_LOST 0x38 /*!< Schlichtung verloren in SLA+R oder NACK bit */ + #define MRX_ADR_ACK 0x40 /*!< SLA+R wurde uebertragen und ACK empfangen */ + #define MRX_ADR_NACK 0x48 /*!< SLA+R wurde uebertragen und NACK empfangen */ + #define MRX_DATA_ACK 0x50 /*!< Datenbyte wurde empfangen und ACK gesendet */ + #define MRX_DATA_NACK 0x58 /*!< Datenbyte wurde empfangen und NACK gesendet */
#endif diff --git a/source/Concept/Framework/modules/input/distance_sensor.c b/source/Concept/Framework/modules/input/distance_sensor.c index e6fd3f8..1ab3755 100755 --- a/source/Concept/Framework/modules/input/distance_sensor.c +++ b/source/Concept/Framework/modules/input/distance_sensor.c @@ -1,41 +1,145 @@ #include "distance_sensor.h"
+ +/*! + * SRF10 initialsieren + */ + +void Distance_Sensor::srf10_init(void){ + srf10_set_range(SRF10_MAX_RANGE); + //srf10_set_range(6); //Mit diesem Wert muss man spielen um das Optimum zu ermitteln +return; +} + +/*! + * Verstaerkungsfaktor setzen + * @param gain Verstaerkungsfaktor + */ + +void Distance_Sensor::srf10_set_gain(unsigned char gain){ + if(gain>16) { gain=16; } + + uint8 temp[2]; + uint8 state; + tx_type tx_frame[2]; + + state = SUCCESS; + + tx_frame[0].slave_adr = this->slaveAddr+W; + tx_frame[0].size = 2; + tx_frame[0].data_ptr = temp; + tx_frame[0].data_ptr[0] = 1; + tx_frame[0].data_ptr[1] = gain; + + tx_frame[1].slave_adr = OWN_ADR; + + state = Send_to_TWI(tx_frame); +} + +/*! + * Reichweite setzen, hat auch Einfluss auf die Messdauer + * @param millimeters Reichweite in mm + */ + +void Distance_Sensor::srf10_set_range(unsigned int millimeters){ + uint8 temp[2]; + uint8 state; + tx_type tx_frame[2]; + + state = SUCCESS; + + millimeters= (millimeters/43); + + tx_frame[0].slave_adr = this->slaveAddr+W; + tx_frame[0].size = 2; + tx_frame[0].data_ptr = temp; + tx_frame[0].data_ptr[0] = 2; + tx_frame[0].data_ptr[1] = millimeters; + + tx_frame[1].slave_adr = OWN_ADR; + + state = Send_to_TWI(tx_frame); +} + +/*! + * Messung ausloesen + * @param metric_unit 0x50 in Zoll, 0x51 in cm, 0x52 ms + * @return Resultat der Aktion + */ + +uint8 Distance_Sensor::srf10_ping(uint8 metric_unit){ + uint8 temp[2]; + uint8 state; + tx_type tx_frame[2]; + + state = SUCCESS; + + tx_frame[0].slave_adr = this->slaveAddr+W; + tx_frame[0].size = 2; + tx_frame[0].data_ptr = temp; + tx_frame[0].data_ptr[0] = SRF10_COMMAND; + tx_frame[0].data_ptr[1] = metric_unit; + + tx_frame[1].slave_adr = OWN_ADR; + + state = Send_to_TWI(tx_frame); + + return state; +} + +/*! + * Register auslesen + * @param srf10_register welches Register soll ausgelsen werden + * @return Inhalt des Registers + */ + +uint8 Distance_Sensor::srf10_read_register(uint8 srf10_register){ + uint8 temp; + uint8 value; + uint8 state; + tx_type tx_frame[3]; + + state = SUCCESS; + value = 0; + + tx_frame[0].slave_adr = this->slaveAddr+W; + tx_frame[0].size = 1; + tx_frame[0].data_ptr = &temp; + tx_frame[0].data_ptr[0] = srf10_register; + + tx_frame[1].slave_adr = this->slaveAddr+R; + tx_frame[1].size = 1; + tx_frame[1].data_ptr = &value; + + tx_frame[2].slave_adr = OWN_ADR; + + state = Send_to_TWI(tx_frame); + + return value; +} + +/*! + * Messung starten Ergebniss aufbereiten und zurueckgeben + * @return Messergebniss + */ + +uint16 Distance_Sensor::srf10_get_measure(){ + char hib; + char lob; + char state; + + state = SUCCESS; + + state = srf10_ping(SRF10_CENTIMETERS); + usleep(10); //Optimierungs Potential + lob=srf10_read_register(SRF10_LOB); + usleep(10); //Optimierungs Potential + hib=srf10_read_register(SRF1sr0_HIB); + + return (hib*256)+lob; +} //-----------------------------------------------------------------------------
-float Distance_Sensor::GetDistance()
+uint16 Distance_Sensor::GetDistance()
{
- uint32 result = 0;
-
- //(parent->GetModule<Display>(IO_DISPLAY_MAIN))->Print("Gen Pulse; Pin:",1,4);
- //(parent->GetModule<Display>(IO_DISPLAY_MAIN))->Print((int)(*hardwarePin & pin));
-
- msleep(500);
-
- //Generate pulse
- *hardwareDDR |= pin;//Set pin output
- *hardwarePort |= pin;//Activate port
- usleep(10);//Wait for 10µs
- *hardwareDDR &= ~pin;//Set pin input
- *hardwarePort &= ~pin;//Deactivate port
-
- //(parent->GetModule<Display>(IO_DISPLAY_MAIN))->Print("Wait response; Pin:",1,4);
- //(parent->GetModule<Display>(IO_DISPLAY_MAIN))->Print((int)(*hardwarePin & pin));
-
- uint16 i;
- //Wait for response
- for(i = 0; (!(*hardwarePin & pin)) && (i < 1000); i++) { asm volatile("nop"); }
-
- //Calculate duration of response
- while((*hardwarePin & pin)&&(result < 300000))
- {
- result++;
- asm volatile("nop");
- asm volatile("nop");
- asm volatile("nop");
- asm volatile("nop");
- asm volatile("nop");
- asm volatile("nop");
- asm volatile("nop");
- }
-
- return (float(result) * DISTANCE_PER_VALUE);
+ return srf10_get_measure();
}
diff --git a/source/Concept/Framework/modules/input/distance_sensor.h b/source/Concept/Framework/modules/input/distance_sensor.h index 8e6aa21..9efa021 100755 --- a/source/Concept/Framework/modules/input/distance_sensor.h +++ b/source/Concept/Framework/modules/input/distance_sensor.h @@ -2,7 +2,21 @@ #define _DISTANCE_SENSOR_H
#include "../../stdafx.h"
-#include "sensor.h"
+#include "sensor.h" + +#define SRF10_MIN_GAIN 0 /*!< setze Verstaerung auf 40 */ +#define SRF10_MAX_GAIN 16 /*!< setze Verstaerung auf 700 */ +#define SRF10_MIN_RANGE 0 /*!< Minimale Reichweite 43mm */ +#define SRF10_MAX_RANGE 5977 /*!< Maximale Reichweite 5977mm */ + +#define SRF10_INCHES 0X50 /*!< Messung in INCHES */ +#define SRF10_CENTIMETERS 0X51 /*!< Messung in CM */ +#define SRF10_MICROSECONDS 0X52 /*!< Messung in Millisekunden */ + +#define SRF10_COMMAND 0 /*!< W=Befehls-Register R=Firmware*/ +#define SRF10_LIGHT 1 /*!< W=Verstaerkungsfaktor R=Nicht benutzt */ +#define SRF10_HIB 2 /*!< W=Reichweite R=Messung High-Byte */ +#define SRF10_LOB 3 /*!< W=Nicht benutzt R=Messung Low-Byte */
class Distance_Sensor : public Sensor
{
@@ -10,11 +24,8 @@ public: Distance_Sensor()
{
this->parent = NULL;
- this->moduleId = 0;
- this->hardwarePort = NULL;
- this->hardwareDDR = NULL;
- this->hardwarePin = NULL;
- this->pin = 0;
+ this->moduleId = 0; + this->slaveAddr = 0; // Set the I2C Slave-Adress
}
Distance_Sensor(uint32 sensorId)
@@ -24,45 +35,64 @@ public: switch(sensorId)
{
- case IO_SENSOR_DISTANCE_0_DEG:
- this->hardwarePort = &PORTC;
- this->hardwareDDR = &DDRC;
- this->hardwarePin = &PINC;
- this->pin = (1 << 0);
+ case IO_SENSOR_DISTANCE_0_DEG: + this->slaveAddr = 0xE0; // Set the I2C Slave-Adress
break;
- case IO_SENSOR_DISTANCE_90_DEG:
- this->hardwarePort = &PORTC;
- this->hardwareDDR = &DDRC;
- this->hardwarePin = &PINC;
- this->pin = (1 << 1);
+ case IO_SENSOR_DISTANCE_90_DEG: + this->slaveAddr = 0xE2;
break;
- case IO_SENSOR_DISTANCE_180_DEG:
- this->hardwarePort = &PORTC;
- this->hardwareDDR = &DDRC;
- this->hardwarePin = &PINC;
- this->pin = (1 << 2);
+ case IO_SENSOR_DISTANCE_180_DEG: + this->slaveAddr = 0xE4;
break;
- case IO_SENSOR_DISTANCE_270_DEG:
- this->hardwarePort = &PORTC;
- this->hardwareDDR = &DDRC;
- this->hardwarePin = &PINC;
- this->pin = (1 << 3);
+ case IO_SENSOR_DISTANCE_270_DEG: + this->slaveAddr = 0xE6;
break;
- default:
- this->hardwarePort = NULL;
- this->hardwareDDR = NULL;
- this->hardwarePin = NULL;
- this->pin = 0;
+ default: + this->slaveAddr = 0;
break;
}
}
protected:
- //Hardware
- volatile uint8* hardwarePort;
- volatile uint8* hardwareDDR;
- volatile uint8* hardwarePin;
- uint8 pin;
+ //Hardware + slaveAddr; + + /*! + * SRF10 initialsieren + */ +extern void srf10_init(void); + +/*! + * Verstaerkungsfaktor setzen + * @param gain Verstaerkungsfaktor + */ +extern void srf10_set_gain(uint8 gain); + +/*! + * Reichweite setzen, hat auch Einfluss auf die Messdauer + * @param millimeters Reichweite in mm + */ +extern void srf10_set_range(uint16 millimeters); + +/*! + * Messung ausloesen + * @param metric_unit 0x50 in Zoll, 0x51 in cm, 0x52 ms + * @return Resultat der Aktion + */ +extern uint8 srf10_ping(uint8 metric_unit); + +/*! + * Register auslesen + * @param srf10_register welches Register soll ausgelsen werden + * @return Inhalt des Registers + */ +extern uint8 srf10_read_register(uint8 SRF10_register); + +/*! + * Messung starten Ergebniss aufbereiten und zurueckgeben + * @return Messergebniss + */ +extern uint16 srf10_get_measure(void); public:
float GetDistance();
|