Mercurial > louis > kiibohd-controller
annotate main.c @ 169:7962a42dbda0
Initial work for McHCK mk20dx128vlf5 port.
author | Jacob Alexander <haata@kiibohd.com> |
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date | Sun, 15 Jun 2014 11:09:08 -0700 |
parents | 98e4f0bc2a5b |
children | 848e1ef8966c |
rev | line source |
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1 /* Copyright (C) 2011-2014 by Jacob Alexander |
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2 * |
0 | 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: | |
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9 * |
0 | 10 * The above copyright notice and this permission notice shall be included in |
11 * all copies or substantial portions of the Software. | |
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12 * |
0 | 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 |
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32 #include <cli.h> |
25 | 33 #include <led.h> |
34 #include <print.h> | |
0 | 35 |
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36 |
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37 |
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38 // ----- Defines ----- |
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39 |
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40 // Verified Keypress Defines |
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41 #define USB_TRANSFER_DIVIDER 10 // 1024 == 1 Send of keypresses per second, 1 == 1 Send of keypresses per ~1 millisecond |
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42 |
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43 |
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44 |
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45 // ----- Macros ----- |
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46 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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47 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n)) |
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48 #endif |
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49 |
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50 |
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51 |
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52 // ----- Function Declarations ----- |
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53 |
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54 |
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55 |
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56 // ----- Variables ----- |
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57 |
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58 // Timer Interrupt for flagging a send of the sampled key detection data to the USB host |
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59 uint16_t sendKeypressCounter = 0; |
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60 |
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61 // Flag generated by the timer interrupt |
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62 volatile uint8_t sendKeypresses = 0; |
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63 |
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64 |
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65 |
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66 // ----- Functions ----- |
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67 |
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68 // Initial Pin Setup, make sure they are sane |
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69 inline void pinSetup(void) |
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70 { |
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71 |
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72 // AVR |
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73 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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74 |
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75 // For each pin, 0=input, 1=output |
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76 #if defined(__AVR_AT90USB1286__) |
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77 DDRA = 0x00; |
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78 #endif |
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79 DDRB = 0x00; |
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80 DDRC = 0x00; |
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81 DDRD = 0x00; |
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82 DDRE = 0x00; |
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83 DDRF = 0x00; |
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84 |
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85 |
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86 // Setting pins to either high or pull-up resistor |
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87 #if defined(__AVR_AT90USB1286__) |
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88 PORTA = 0x00; |
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89 #endif |
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90 PORTB = 0x00; |
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91 PORTC = 0x00; |
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92 PORTD = 0x00; |
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93 PORTE = 0x00; |
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94 PORTF = 0x00; |
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95 |
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96 // ARM |
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97 #elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM |
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98 // TODO - Should be cleared, but not that necessary due to the pin layout |
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99 #endif |
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100 } |
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101 |
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102 |
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103 inline void usbTimerSetup(void) |
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104 { |
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105 // AVR |
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106 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) |
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107 |
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108 // Setup with 16 MHz clock |
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109 CPU_PRESCALE( 0 ); |
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110 |
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111 // Setup ISR Timer for flagging a kepress send to USB |
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112 // Set to 256 * 1024 (8 bit timer with Clock/1024 prescalar) timer |
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113 TCCR0A = 0x00; |
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114 TCCR0B = 0x03; |
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115 TIMSK0 = (1 << TOIE0); |
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116 |
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117 // ARM |
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118 #elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM |
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119 // 48 MHz clock by default |
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120 |
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121 // System Clock Gating Register Disable |
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122 SIM_SCGC6 |= SIM_SCGC6_PIT; |
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123 |
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124 // Enable Timers |
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125 PIT_MCR = 0x00; |
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126 |
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127 // Setup ISR Timer for flagging a kepress send to USB |
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128 // 1 ms / (1 / 48 MHz) - 1 = 47999 cycles -> 0xBB7F |
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129 PIT_LDVAL0 = 0x0000BB7F; |
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130 PIT_TCTRL0 = 0x3; // Enable Timer 0 interrupts, and Enable Timer 0 |
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131 |
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132 // Insert the required vector for Timer 0 |
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133 NVIC_ENABLE_IRQ( IRQ_PIT_CH0 ); |
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134 #endif |
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135 } |
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136 |
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137 |
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138 int main(void) |
0 | 139 { |
140 // Configuring Pins | |
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141 pinSetup(); |
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142 |
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143 // Enable CLI |
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144 CLI_init(); |
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125
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146 // Setup Modules |
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147 Output_setup(); |
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148 Macro_setup(); |
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149 Scan_setup(); |
105
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150 |
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151 // Setup ISR Timer for flagging a kepress send to USB |
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152 usbTimerSetup(); |
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153 |
0 | 154 // Main Detection Loop |
25 | 155 while ( 1 ) |
156 { | |
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157 // Process CLI |
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158 CLI_process(); |
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159 |
123
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160 // Acquire Key Indices |
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161 // Loop continuously until scan_loop returns 0 |
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162 cli(); |
140
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163 while ( Scan_loop() ); |
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164 sei(); |
25 | 165 |
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166 // Run Macros over Key Indices and convert to USB Keys |
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167 Macro_process(); |
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168 |
123
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169 // Send keypresses over USB if the ISR has signalled that it's time |
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170 if ( !sendKeypresses ) |
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171 continue; |
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172 |
123
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173 // Send USB Data |
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174 Output_send(); |
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175 |
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176 // Clear sendKeypresses Flag |
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177 sendKeypresses = 0; |
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178 } |
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179 } |
0 | 180 |
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181 |
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182 // ----- Interrupts ----- |
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183 |
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184 // USB Keyboard Data Send Counter Interrupt |
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185 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR |
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186 ISR( TIMER0_OVF_vect ) |
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187 #elif defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM |
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188 void pit0_isr(void) |
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189 #endif |
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190 { |
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191 sendKeypressCounter++; |
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192 if ( sendKeypressCounter > USB_TRANSFER_DIVIDER ) { |
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193 sendKeypressCounter = 0; |
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194 sendKeypresses = 1; |
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195 } |
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196 |
169
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197 #if defined(_mk20dx128_) || defined(_mk20dx128vlf5_) || defined(_mk20dx256_) // ARM |
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198 // Clear the interrupt flag |
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199 PIT_TFLG0 = 1; |
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200 #endif |
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201 } |
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202 |
111
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203 |
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204 // ----- CLI Command Functions ----- |
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205 |
120
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Adding iGaging support for reading values as mm, um and nm.
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206 |