Mercurial > louis > kiibohd-controller
annotate main.c @ 105:3764d78996a8
More renaming for the USB to Output Module renaming
author | Jacob Alexander <haata@kiibohd.com> |
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date | Sun, 19 Jan 2014 16:54:58 -0800 |
parents | 4c2712f25157 |
children | 15961894eaeb |
rev | line source |
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1 /* Copyright (C) 2011-2013 by Jacob Alexander |
0 | 2 * |
3 * Permission is hereby granted, free of charge, to any person obtaining a copy | |
4 * of this software and associated documentation files (the "Software"), to deal | |
5 * in the Software without restriction, including without limitation the rights | |
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
7 * copies of the Software, and to permit persons to whom the Software is | |
8 * furnished to do so, subject to the following conditions: | |
9 * | |
10 * The above copyright notice and this permission notice shall be included in | |
11 * all copies or substantial portions of the Software. | |
12 * | |
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
19 * THE SOFTWARE. | |
20 */ | |
21 | |
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22 // ----- Includes ----- |
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23 |
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24 // Compiler Includes |
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25 #include <Lib/MainLib.h> |
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26 |
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27 // Project Includes |
25 | 28 #include <macro.h> |
29 #include <scan_loop.h> | |
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30 #include <output_com.h> |
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31 |
25 | 32 #include <led.h> |
33 #include <print.h> | |
0 | 34 |
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35 |
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36 |
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37 // ----- Defines ----- |
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38 |
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39 // Verified Keypress Defines |
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40 #define USB_TRANSFER_DIVIDER 10 // 1024 == 1 Send of keypresses per second, 1 == 1 Send of keypresses per ~1 millisecond |
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41 |
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42 |
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43 |
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44 // ----- Macros ----- |
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45 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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46 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n)) |
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47 #endif |
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48 |
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49 |
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50 |
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51 // ----- Variables ----- |
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52 |
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53 // Timer Interrupt for flagging a send of the sampled key detection data to the USB host |
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54 uint16_t sendKeypressCounter = 0; |
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55 |
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56 // Flag generated by the timer interrupt |
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57 volatile uint8_t sendKeypresses = 0; |
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58 |
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59 |
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60 |
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61 // ----- Functions ----- |
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62 |
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63 // Initial Pin Setup, make sure they are sane |
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64 inline void pinSetup(void) |
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65 { |
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66 |
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67 // AVR |
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68 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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69 |
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70 // For each pin, 0=input, 1=output |
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71 #if defined(__AVR_AT90USB1286__) |
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72 DDRA = 0x00; |
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73 #endif |
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74 DDRB = 0x00; |
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75 DDRC = 0x00; |
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76 DDRD = 0x00; |
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77 DDRE = 0x00; |
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78 DDRF = 0x00; |
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79 |
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80 |
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81 // Setting pins to either high or pull-up resistor |
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82 #if defined(__AVR_AT90USB1286__) |
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83 PORTA = 0x00; |
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84 #endif |
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85 PORTB = 0x00; |
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86 PORTC = 0x00; |
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87 PORTD = 0x00; |
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88 PORTE = 0x00; |
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89 PORTF = 0x00; |
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90 |
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91 // ARM |
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92 #elif defined(_mk20dx128_) |
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93 // TODO - Should be cleared, but not that necessary due to the pin layout |
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94 #endif |
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95 } |
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96 |
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97 |
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98 inline void usbTimerSetup(void) |
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99 { |
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100 // AVR |
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101 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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102 |
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103 // Setup with 16 MHz clock |
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104 CPU_PRESCALE( 0 ); |
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105 |
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106 // Setup ISR Timer for flagging a kepress send to USB |
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107 // Set to 256 * 1024 (8 bit timer with Clock/1024 prescalar) timer |
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108 TCCR0A = 0x00; |
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109 TCCR0B = 0x03; |
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110 TIMSK0 = (1 << TOIE0); |
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111 |
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112 // ARM |
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113 #elif defined(_mk20dx128_) |
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114 // 48 MHz clock by default |
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115 |
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116 // System Clock Gating Register Disable |
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117 SIM_SCGC6 |= SIM_SCGC6_PIT; |
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118 |
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119 // Enable Timers |
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120 PIT_MCR = 0x00; |
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121 |
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122 // Setup ISR Timer for flagging a kepress send to USB |
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123 // 1 ms / (1 / 48 MHz) - 1 = 47999 cycles -> 0xBB7F |
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124 PIT_LDVAL0 = 0x0000BB7F; |
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125 PIT_TCTRL0 = 0x3; // Enable Timer 0 interrupts, and Enable Timer 0 |
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126 |
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127 // Insert the required vector for Timer 0 |
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128 NVIC_ENABLE_IRQ( IRQ_PIT_CH0 ); |
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129 #endif |
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130 } |
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131 |
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132 |
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133 int main(void) |
0 | 134 { |
135 // Configuring Pins | |
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136 pinSetup(); |
25 | 137 init_errorLED(); |
0 | 138 |
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139 // Setup Output Module |
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140 output_setup(); |
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141 |
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142 // Enable CLI |
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143 init_cli(); |
0 | 144 |
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145 // Setup ISR Timer for flagging a kepress send to USB |
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146 usbTimerSetup(); |
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147 |
0 | 148 // Main Detection Loop |
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149 uint8_t ledTimer = F_CPU / 1000000; // Enable LED for a short time |
25 | 150 while ( 1 ) |
151 { | |
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152 // Setup the scanning module |
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153 scan_setup(); |
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154 |
25 | 155 while ( 1 ) |
156 { | |
157 // Acquire Key Indices | |
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158 // Loop continuously until scan_loop returns 0 |
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Tandy 1000 Converter, basicly works, except for packet mismatches
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159 cli(); |
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Tandy 1000 Converter, basicly works, except for packet mismatches
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160 while ( scan_loop() ); |
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Tandy 1000 Converter, basicly works, except for packet mismatches
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161 sei(); |
25 | 162 |
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163 // Run Macros over Key Indices and convert to USB Keys |
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164 process_macros(); |
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165 |
25 | 166 // Send keypresses over USB if the ISR has signalled that it's time |
167 if ( !sendKeypresses ) | |
168 continue; | |
169 | |
170 // Send USB Data | |
171 usb_send(); | |
172 | |
173 // Clear sendKeypresses Flag | |
174 sendKeypresses = 0; | |
175 | |
176 // Indicate Error, if valid | |
177 errorLED( ledTimer ); | |
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178 |
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parents:
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179 if ( ledTimer > 0 ) |
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Tandy 1000 Converter, basicly works, except for packet mismatches
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180 ledTimer--; |
25 | 181 } |
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182 |
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183 // Loop should never get here (indicate error) |
25 | 184 ledTimer = 255; |
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185 |
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186 // HID Debug Error message |
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187 erro_print("Detection loop error, this is very bad...bug report!"); |
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188 } |
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189 } |
0 | 190 |
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191 |
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192 // ----- Interrupts ----- |
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193 |
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194 // USB Keyboard Data Send Counter Interrupt |
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195 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR |
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196 ISR( TIMER0_OVF_vect ) |
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197 #elif defined(_mk20dx128_) // ARM |
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198 void pit0_isr(void) |
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199 #endif |
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200 { |
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Keyboard functionally working with very very good debouncing.
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201 sendKeypressCounter++; |
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Keyboard functionally working with very very good debouncing.
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202 if ( sendKeypressCounter > USB_TRANSFER_DIVIDER ) { |
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203 sendKeypressCounter = 0; |
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204 sendKeypresses = 1; |
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205 } |
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206 |
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207 #if defined(_mk20dx128_) // ARM |
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208 // Clear the interrupt flag |
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209 PIT_TFLG0 = 1; |
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210 #endif |
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211 } |
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212 |