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Rev | Author | Line No. | Line |
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745 | killagreg | 1 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 | ingob | 2 | // + Copyright (c) 04.2007 Holger Buss |
3 | // + only for non-profit use |
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4 | // + www.MikroKopter.com |
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5 | // + see the File "License.txt" for further Informations |
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6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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7 | |||
687 | killagreg | 8 | #include <avr/io.h> |
9 | #include <avr/interrupt.h> |
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10 | #include <avr/wdt.h> |
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11 | |||
12 | #include "eeprom.h" |
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1 | ingob | 13 | #include "main.h" |
685 | killagreg | 14 | #include "menu.h" |
15 | #include "timer0.h" |
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1 | ingob | 16 | #include "uart.h" |
685 | killagreg | 17 | #include "fc.h" |
18 | #include "_Settings.h" |
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19 | #include "rc.h" |
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1 | ingob | 20 | |
735 | killagreg | 21 | #define FALSE 0 |
22 | #define TRUE 1 |
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685 | killagreg | 23 | |
745 | killagreg | 24 | //int8_t test __attribute__ ((section (".noinit"))); |
683 | killagreg | 25 | |
745 | killagreg | 26 | uint8_t DebugGetRequest = 0, DebugDisplayRequest = 0, DebugDataRequest = 0, GetVersionRequest = 0; |
27 | |||
735 | killagreg | 28 | volatile uint8_t txd_buffer[TXD_BUFFER_LEN]; |
737 | killagreg | 29 | volatile uint8_t rxd_buffer_locked = FALSE; |
735 | killagreg | 30 | volatile uint8_t rxd_buffer[RXD_BUFFER_LEN]; |
737 | killagreg | 31 | volatile uint8_t txd_complete = TRUE; |
735 | killagreg | 32 | volatile uint8_t ReceivedBytes = 0; |
33 | |||
34 | uint8_t RemotePollDisplayLine = 0; |
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35 | uint8_t NurKanalAnforderung = 0; |
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36 | uint8_t DebugTextAnforderung = 255; |
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37 | uint8_t PcAccess = 100; |
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38 | uint8_t MotorTest[4] = {0,0,0,0}; |
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39 | uint8_t DubWiseKeys[4] = {0,0,0,0}; |
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745 | killagreg | 40 | uint8_t MySlaveAddr = 0; |
735 | killagreg | 41 | uint8_t ConfirmFrame; |
42 | |||
43 | DebugOut_t DebugOut; |
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44 | ExternControl_t ExternControl; |
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45 | VersionInfo_t VersionInfo; |
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46 | |||
47 | const uint8_t ANALOG_TEXT[32][16] = |
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499 | hbuss | 48 | { |
683 | killagreg | 49 | //1234567890123456 |
701 | killagreg | 50 | "IntegralPitch ", //0 |
499 | hbuss | 51 | "IntegralRoll ", |
701 | killagreg | 52 | "AccPitch ", |
499 | hbuss | 53 | "AccRoll ", |
701 | killagreg | 54 | "GyroYaw ", |
55 | "ReadingHight ", //5 |
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499 | hbuss | 56 | "AccZ ", |
707 | killagreg | 57 | "Thrust ", |
701 | killagreg | 58 | "CompassHeading ", |
59 | "Voltage ", |
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60 | "Receiver Level ", //10 |
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513 | hbuss | 61 | "Analog11 ", |
741 | killagreg | 62 | "GPSDevNorth ", |
63 | "GPSDevEast ", |
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64 | "GPS_Pitch ", |
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65 | "GPS_Roll ", //15 |
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513 | hbuss | 66 | "Acc_Z ", |
701 | killagreg | 67 | "MeanAccPitch ", |
68 | "MeanAccRoll ", |
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69 | "IntegralErrPitch", |
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499 | hbuss | 70 | "IntegralErrRoll ", //20 |
701 | killagreg | 71 | "MeanIntPitch ", |
711 | killagreg | 72 | "MeanIntRoll ", |
701 | killagreg | 73 | "NeutralPitch ", |
513 | hbuss | 74 | "RollOffset ", |
701 | killagreg | 75 | "IntRoll*Factor ", //25 |
712 | killagreg | 76 | "ReadingGyroPitch", |
701 | killagreg | 77 | "DirectCorrRoll ", |
712 | killagreg | 78 | "ReadingGyroRoll ", |
701 | killagreg | 79 | "CorrectionRoll ", |
80 | "I-AttRoll ", //30 |
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513 | hbuss | 81 | "StickRoll " |
499 | hbuss | 82 | }; |
83 | |||
84 | |||
85 | |||
683 | killagreg | 86 | /****************************************************************/ |
87 | /* Initialization of the USART0 */ |
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88 | /****************************************************************/ |
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89 | void USART0_Init (void) |
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1 | ingob | 90 | { |
683 | killagreg | 91 | uint8_t sreg = SREG; |
92 | uint16_t ubrr = (uint16_t) ((uint32_t) SYSCLK/(8 * USART0_BAUD) - 1); |
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93 | |||
94 | // disable all interrupts before configuration |
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95 | cli(); |
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96 | |||
97 | // disable RX-Interrupt |
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98 | UCSR0B &= ~(1 << RXCIE0); |
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99 | // disable TX-Interrupt |
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100 | UCSR0B &= ~(1 << TXCIE0); |
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101 | |||
102 | // set direction of RXD0 and TXD0 pins |
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103 | // set RXD0 (PD0) as an input pin |
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104 | PORTD |= (1 << PORTD0); |
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105 | DDRD &= ~(1 << DDD0); |
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106 | // set TXD0 (PD1) as an output pin |
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107 | PORTD |= (1 << PORTD1); |
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108 | DDRD |= (1 << DDD1); |
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109 | |||
110 | // USART0 Baud Rate Register |
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111 | // set clock divider |
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112 | UBRR0H = (uint8_t)(ubrr >> 8); |
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113 | UBRR0L = (uint8_t)ubrr; |
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114 | |||
115 | // USART0 Control and Status Register A, B, C |
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116 | |||
117 | // enable double speed operation in |
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118 | UCSR0A |= (1 << U2X0); |
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119 | // enable receiver and transmitter in |
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120 | UCSR0B = (1 << TXEN0) | (1 << RXEN0); |
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121 | // set asynchronous mode |
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122 | UCSR0C &= ~(1 << UMSEL01); |
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123 | UCSR0C &= ~(1 << UMSEL00); |
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124 | // no parity |
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125 | UCSR0C &= ~(1 << UPM01); |
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126 | UCSR0C &= ~(1 << UPM00); |
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127 | // 1 stop bit |
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128 | UCSR0C &= ~(1 << USBS0); |
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129 | // 8-bit |
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130 | UCSR0B &= ~(1 << UCSZ02); |
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131 | UCSR0C |= (1 << UCSZ01); |
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132 | UCSR0C |= (1 << UCSZ00); |
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133 | |||
134 | // flush receive buffer |
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135 | while ( UCSR0A & (1<<RXC0) ) UDR0; |
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136 | |||
137 | // enable interrupts at the end |
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138 | // enable RX-Interrupt |
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139 | UCSR0B |= (1 << RXCIE0); |
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140 | // enable TX-Interrupt |
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141 | UCSR0B |= (1 << TXCIE0); |
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142 | |||
737 | killagreg | 143 | rxd_buffer_locked = FALSE; |
683 | killagreg | 144 | // restore global interrupt flags |
145 | SREG = sreg; |
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146 | } |
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147 | |||
148 | /****************************************************************/ |
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149 | /* USART0 transmitter ISR */ |
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150 | /****************************************************************/ |
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151 | ISR(USART0_TX_vect) |
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152 | { |
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735 | killagreg | 153 | static uint16_t ptr_txd_buffer = 0; |
154 | uint8_t tmp_tx; |
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155 | if(!txd_complete) // transmission not completed |
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156 | { |
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157 | ptr_txd_buffer++; // die [0] wurde schon gesendet |
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158 | tmp_tx = txd_buffer[ptr_txd_buffer]; |
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159 | // if terminating character or end of txd buffer was reached |
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160 | if((tmp_tx == '\r') || (ptr_txd_buffer == TXD_BUFFER_LEN)) |
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161 | { |
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162 | ptr_txd_buffer = 0; // reset txd pointer |
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163 | txd_complete = 1; // stop transmission |
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164 | } |
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165 | UDR0 = tmp_tx; // send current byte will trigger this ISR again |
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166 | } |
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167 | // transmission completed |
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168 | else ptr_txd_buffer = 0; |
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1 | ingob | 169 | } |
170 | |||
683 | killagreg | 171 | /****************************************************************/ |
172 | /* USART0 receiver ISR */ |
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173 | /****************************************************************/ |
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174 | ISR(USART0_RX_vect) |
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1 | ingob | 175 | { |
735 | killagreg | 176 | static uint16_t crc; |
737 | killagreg | 177 | static uint8_t ptr_rxd_buffer = 0; |
178 | uint8_t crc1, crc2; |
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735 | killagreg | 179 | uint8_t c; |
1 | ingob | 180 | |
737 | killagreg | 181 | c = UDR0; // catch the received byte |
182 | |||
183 | |||
184 | if(rxd_buffer_locked) return; // if txd buffer is locked immediately return |
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185 | |||
186 | // the rxd buffer is unlocked |
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187 | if((ptr_rxd_buffer == 0) && (c == '#')) // if rxd buffer is empty and syncronisation character is received |
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735 | killagreg | 188 | { |
737 | killagreg | 189 | rxd_buffer[ptr_rxd_buffer++] = c; // copy 1st byte to buffer |
190 | crc = c; // init crc |
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191 | } |
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192 | #if 0 |
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193 | else if (ptr_rxd_buffer == 1) // handle address |
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194 | { |
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195 | rxd_buffer[ptr_rxd_buffer++] = c; // copy byte to rxd buffer |
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196 | crc += c; // update crc |
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197 | } |
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198 | #endif |
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199 | else if (ptr_rxd_buffer < RXD_BUFFER_LEN) // collect incomming bytes |
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200 | { |
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201 | if(c != '\r') // no termination character |
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735 | killagreg | 202 | { |
737 | killagreg | 203 | rxd_buffer[ptr_rxd_buffer++] = c; // copy byte to rxd buffer |
204 | crc += c; // update crc |
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735 | killagreg | 205 | } |
737 | killagreg | 206 | else // termination character was received |
207 | { |
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208 | // the last 2 bytes are no subject for checksum calculation |
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209 | // they are the checksum itself |
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210 | crc -= rxd_buffer[ptr_rxd_buffer-2]; |
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211 | crc -= rxd_buffer[ptr_rxd_buffer-1]; |
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212 | // calculate checksum from transmitted data |
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213 | crc %= 4096; |
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214 | crc1 = '=' + crc / 64; |
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215 | crc2 = '=' + crc % 64; |
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216 | // compare checksum to transmitted checksum bytes |
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217 | if((crc1 == rxd_buffer[ptr_rxd_buffer-2]) && (crc2 == rxd_buffer[ptr_rxd_buffer-1])) |
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218 | { // checksum valid |
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219 | rxd_buffer_locked = TRUE; // lock the rxd buffer |
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220 | ReceivedBytes = ptr_rxd_buffer; // store number of received bytes |
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221 | rxd_buffer[ptr_rxd_buffer] = '\r'; // set termination character |
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222 | // if 2nd byte is an 'R' enable watchdog that will result in an reset |
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745 | killagreg | 223 | if(rxd_buffer[2] == 'R') {wdt_enable(WDTO_250MS);} // Reset-Commando |
737 | killagreg | 224 | } |
225 | else |
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226 | { // checksum invalid |
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227 | rxd_buffer_locked = FALSE; // unlock rxd buffer |
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228 | } |
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229 | ptr_rxd_buffer = 0; // reset txd buffer |
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230 | } |
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231 | } // buffer overrun |
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735 | killagreg | 232 | else |
233 | { |
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737 | killagreg | 234 | ptr_rxd_buffer = 0; // reset rxd buffer |
235 | rxd_buffer_locked = FALSE; // unlock rxd buffer |
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735 | killagreg | 236 | } |
737 | killagreg | 237 | |
1 | ingob | 238 | } |
239 | |||
240 | |||
241 | // -------------------------------------------------------------------------- |
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735 | killagreg | 242 | void AddCRC(uint16_t datalen) |
1 | ingob | 243 | { |
683 | killagreg | 244 | uint16_t tmpCRC = 0,i; |
735 | killagreg | 245 | for(i = 0; i < datalen;i++) |
1 | ingob | 246 | { |
683 | killagreg | 247 | tmpCRC += txd_buffer[i]; |
1 | ingob | 248 | } |
249 | tmpCRC %= 4096; |
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683 | killagreg | 250 | txd_buffer[i++] = '=' + tmpCRC / 64; |
251 | txd_buffer[i++] = '=' + tmpCRC % 64; |
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252 | txd_buffer[i++] = '\r'; |
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735 | killagreg | 253 | txd_complete = 0; |
254 | UDR0 = txd_buffer[0]; // initiates the transmittion |
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1 | ingob | 255 | } |
256 | |||
257 | |||
258 | |||
259 | // -------------------------------------------------------------------------- |
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745 | killagreg | 260 | void SendOutData(uint8_t cmd,uint8_t module, uint8_t *snd, uint8_t len) |
1 | ingob | 261 | { |
735 | killagreg | 262 | uint16_t pt = 0; |
263 | uint8_t a,b,c; |
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264 | uint8_t ptr = 0; |
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1 | ingob | 265 | |
735 | killagreg | 266 | txd_buffer[pt++] = '#'; // Start character |
745 | killagreg | 267 | txd_buffer[pt++] = module; // Address (a=0; b=1,...) |
735 | killagreg | 268 | txd_buffer[pt++] = cmd; // Command |
1 | ingob | 269 | |
735 | killagreg | 270 | while(len) |
271 | { |
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272 | if(len) { a = snd[ptr++]; len--;} else a = 0; |
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273 | if(len) { b = snd[ptr++]; len--;} else b = 0; |
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274 | if(len) { c = snd[ptr++]; len--;} else c = 0; |
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275 | txd_buffer[pt++] = '=' + (a >> 2); |
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276 | txd_buffer[pt++] = '=' + (((a & 0x03) << 4) | ((b & 0xf0) >> 4)); |
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277 | txd_buffer[pt++] = '=' + (((b & 0x0f) << 2) | ((c & 0xc0) >> 6)); |
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278 | txd_buffer[pt++] = '=' + ( c & 0x3f); |
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279 | } |
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280 | AddCRC(pt); // add checksum after data block and initates the transmission |
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1 | ingob | 281 | } |
282 | |||
283 | |||
284 | // -------------------------------------------------------------------------- |
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745 | killagreg | 285 | void Decode64(uint8_t *ptrOut, uint8_t len, uint8_t ptrIn, uint8_t max) |
1 | ingob | 286 | { |
735 | killagreg | 287 | uint8_t a,b,c,d; |
288 | uint8_t ptr = 0; |
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289 | uint8_t x,y,z; |
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290 | while(len) |
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291 | { |
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292 | a = rxd_buffer[ptrIn++] - '='; |
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293 | b = rxd_buffer[ptrIn++] - '='; |
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294 | c = rxd_buffer[ptrIn++] - '='; |
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295 | d = rxd_buffer[ptrIn++] - '='; |
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745 | killagreg | 296 | if(ptrIn > max - 2) break; |
1 | ingob | 297 | |
735 | killagreg | 298 | x = (a << 2) | (b >> 4); |
299 | y = ((b & 0x0f) << 4) | (c >> 2); |
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300 | z = ((c & 0x03) << 6) | d; |
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1 | ingob | 301 | |
735 | killagreg | 302 | if(len--) ptrOut[ptr++] = x; else break; |
303 | if(len--) ptrOut[ptr++] = y; else break; |
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304 | if(len--) ptrOut[ptr++] = z; else break; |
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305 | } |
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1 | ingob | 306 | } |
307 | |||
735 | killagreg | 308 | |
1 | ingob | 309 | // -------------------------------------------------------------------------- |
735 | killagreg | 310 | void ProcessRxData(void) |
1 | ingob | 311 | { |
737 | killagreg | 312 | // if data in the rxd buffer are not locked immediately return |
313 | if(!rxd_buffer_locked) return; |
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1 | ingob | 314 | |
735 | killagreg | 315 | uint8_t tmp_char_arr2[2]; // local buffer |
683 | killagreg | 316 | |
735 | killagreg | 317 | PcAccess = 255; |
318 | switch(rxd_buffer[2]) |
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319 | { |
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320 | case 'a':// Labels of the Analog Deboug outputs |
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321 | Decode64((uint8_t *) &tmp_char_arr2[0], sizeof(tmp_char_arr2), 3, ReceivedBytes); |
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322 | DebugTextAnforderung = tmp_char_arr2[0]; |
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499 | hbuss | 323 | break; |
735 | killagreg | 324 | case 'b': // extern control |
325 | Decode64((uint8_t *) &ExternControl,sizeof(ExternControl), 3, ReceivedBytes); |
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685 | killagreg | 326 | RemoteButtons |= ExternControl.RemoteButtons; |
735 | killagreg | 327 | ConfirmFrame = ExternControl.Frame; |
328 | break; |
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329 | case 'c': // extern control with debug request |
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330 | Decode64((uint8_t *) &ExternControl,sizeof(ExternControl),3,ReceivedBytes); |
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685 | killagreg | 331 | RemoteButtons |= ExternControl.RemoteButtons; |
735 | killagreg | 332 | ConfirmFrame = ExternControl.Frame; |
745 | killagreg | 333 | DebugDataRequest = 1; |
735 | killagreg | 334 | break; |
335 | case 'h':// x-1 display columns |
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336 | Decode64((uint8_t *) &tmp_char_arr2[0],sizeof(tmp_char_arr2),3,ReceivedBytes); |
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337 | RemoteButtons |= tmp_char_arr2[0]; |
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338 | if(tmp_char_arr2[1] == 255) NurKanalAnforderung = 1; |
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339 | else NurKanalAnforderung = 0; // keine Displaydaten |
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745 | killagreg | 340 | DebugDisplayRequest = 1; |
1 | ingob | 341 | break; |
735 | killagreg | 342 | case 't':// motor test |
343 | Decode64((uint8_t *) &MotorTest[0],sizeof(MotorTest),3,ReceivedBytes); |
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1 | ingob | 344 | break; |
735 | killagreg | 345 | case 'k':// keys from DubWise |
346 | Decode64((uint8_t *) &DubWiseKeys[0],sizeof(DubWiseKeys),3,ReceivedBytes); |
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595 | hbuss | 347 | ConfirmFrame = DubWiseKeys[3]; |
492 | hbuss | 348 | break; |
735 | killagreg | 349 | case 'v': // get version and board release |
745 | killagreg | 350 | GetVersionRequest = 1; |
735 | killagreg | 351 | break; |
352 | case 'g':// get debug data |
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745 | killagreg | 353 | DebugGetRequest = 1; |
735 | killagreg | 354 | break; |
355 | case 'q':// get settings |
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356 | Decode64((uint8_t *) &tmp_char_arr2[0],sizeof(tmp_char_arr2),3,ReceivedBytes); |
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357 | if(tmp_char_arr2[0] != 0xff) |
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358 | { |
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359 | if(tmp_char_arr2[0] > 5) tmp_char_arr2[0] = 5; // limit to 5 |
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360 | // load requested parameter set |
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361 | ParamSet_ReadFromEEProm(tmp_char_arr2[0]); |
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362 | SendOutData('L' + tmp_char_arr2[0] -1,MySlaveAddr,(uint8_t *) &ParamSet.ChannelAssignment[0],PARAMSET_STRUCT_LEN); |
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363 | } |
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364 | else // send active parameter set |
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365 | SendOutData('L' + GetParamByte(PID_ACTIVE_SET)-1,MySlaveAddr,(uint8_t *) &ParamSet.ChannelAssignment[0],PARAMSET_STRUCT_LEN); |
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683 | killagreg | 366 | |
735 | killagreg | 367 | break; |
683 | killagreg | 368 | |
735 | killagreg | 369 | case 'l': |
370 | case 'm': |
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371 | case 'n': |
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372 | case 'o': |
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373 | case 'p': // save parameterset |
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374 | Decode64((uint8_t *) &ParamSet.ChannelAssignment[0],PARAMSET_STRUCT_LEN,3,ReceivedBytes); |
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687 | killagreg | 375 | ParamSet_WriteToEEProm(rxd_buffer[2] - 'l' + 1); |
735 | killagreg | 376 | TurnOver180Pitch = (int32_t) ParamSet.AngleTurnOverPitch * 2500L; |
377 | TurnOver180Roll = (int32_t) ParamSet.AngleTurnOverRoll * 2500L; |
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378 | Beep(GetActiveParamSet()); |
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379 | break; |
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683 | killagreg | 380 | |
381 | |||
735 | killagreg | 382 | } |
737 | killagreg | 383 | // unlock the rxd buffer after processing |
384 | rxd_buffer_locked = FALSE; |
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1 | ingob | 385 | } |
386 | |||
387 | //############################################################################ |
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388 | //Routine für die Serielle Ausgabe |
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683 | killagreg | 389 | int16_t uart_putchar (int8_t c) |
1 | ingob | 390 | //############################################################################ |
391 | { |
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392 | if (c == '\n') |
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393 | uart_putchar('\r'); |
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735 | killagreg | 394 | // wait until previous character was send |
683 | killagreg | 395 | loop_until_bit_is_set(UCSR0A, UDRE0); |
1 | ingob | 396 | //Ausgabe des Zeichens |
683 | killagreg | 397 | UDR0 = c; |
398 | |||
1 | ingob | 399 | return (0); |
400 | } |
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401 | |||
402 | |||
403 | //--------------------------------------------------------------------------------------------- |
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735 | killagreg | 404 | void TransmitTxData(void) |
1 | ingob | 405 | { |
735 | killagreg | 406 | static int16_t Debug_Timer = 0; |
407 | if(!txd_complete) return; |
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1 | ingob | 408 | |
745 | killagreg | 409 | if(DebugGetRequest && txd_complete) // Bei Get werden die vom PC einstellbaren Werte vom PC zurückgelesen |
683 | killagreg | 410 | { |
735 | killagreg | 411 | SendOutData('G',MySlaveAddr,(uint8_t *) &ExternControl,sizeof(ExternControl)); |
745 | killagreg | 412 | DebugGetRequest = 0; |
1 | ingob | 413 | } |
414 | |||
745 | killagreg | 415 | if((CheckDelay(Debug_Timer) || DebugDataRequest) && txd_complete) |
1 | ingob | 416 | { |
735 | killagreg | 417 | SendOutData('D',MySlaveAddr,(uint8_t *) &DebugOut,sizeof(DebugOut)); |
745 | killagreg | 418 | DebugDataRequest = 0; |
683 | killagreg | 419 | Debug_Timer = SetDelay(MIN_DEBUG_INTERVALL); |
420 | } |
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499 | hbuss | 421 | if(DebugTextAnforderung != 255) // Texte für die Analogdaten |
422 | { |
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683 | killagreg | 423 | SendOutData('A',DebugTextAnforderung + '0',(uint8_t *) ANALOG_TEXT[DebugTextAnforderung],16); |
499 | hbuss | 424 | DebugTextAnforderung = 255; |
425 | } |
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735 | killagreg | 426 | if(ConfirmFrame && txd_complete) // Datensatz ohne CRC bestätigen |
595 | hbuss | 427 | { |
683 | killagreg | 428 | txd_buffer[0] = '#'; |
429 | txd_buffer[1] = ConfirmFrame; |
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430 | txd_buffer[2] = '\r'; |
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735 | killagreg | 431 | txd_complete = 0; |
595 | hbuss | 432 | ConfirmFrame = 0; |
683 | killagreg | 433 | UDR0 = txd_buffer[0]; |
595 | hbuss | 434 | } |
745 | killagreg | 435 | if(DebugDisplayRequest && txd_complete) |
1 | ingob | 436 | { |
685 | killagreg | 437 | LCD_PrintMenu(); |
745 | killagreg | 438 | DebugDisplayRequest = 0; |
683 | killagreg | 439 | if(++RemotePollDisplayLine == 4 || NurKanalAnforderung) |
173 | holgerb | 440 | { |
683 | killagreg | 441 | SendOutData('4',0,(uint8_t *)&PPM_in,sizeof(PPM_in)); // DisplayZeile übertragen |
499 | hbuss | 442 | RemotePollDisplayLine = -1; |
683 | killagreg | 443 | } |
444 | else SendOutData('0' + RemotePollDisplayLine,0,(uint8_t *)&DisplayBuff[20 * RemotePollDisplayLine],20); // DisplayZeile übertragen |
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445 | } |
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745 | killagreg | 446 | if(GetVersionRequest && txd_complete) |
683 | killagreg | 447 | { |
735 | killagreg | 448 | SendOutData('V',MySlaveAddr,(uint8_t *) &VersionInfo,sizeof(VersionInfo)); |
745 | killagreg | 449 | GetVersionRequest = 0; |
1 | ingob | 450 | } |
451 | |||
452 | } |
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453 |