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  1. # Uncomment some or all of these to enable the optional hardware interfaces
  2. # Params:
  3. #         i2c_arm                  Set to "on" to enable the ARM's i2c interface
  4. #                                  (default "off")
  5. #         i2c_vc                   Set to "on" to enable the i2c interface
  6. #                                  usually reserved for the VideoCore processor
  7. #                                  (default "off")
  8. #         i2c_arm_baudrate         Set the baudrate of the ARM's i2c interface
  9. #                                  (default "100000")
  10. #         i2c_vc_baudrate          Set the baudrate of the VideoCore i2c interface
  11. #                                  (default "100000")
  12. #         i2c_baudrate             An alias for i2c_arm_baudrate
  13. #         i2s                      Set to "on" to enable the i2s interface
  14. #                                  (default "off")
  15. #         spi                      Set to "on" to enable the spi interfaces
  16. #                                  (default "off")
  17. #         act_led_trigger          Choose which activity the LED tracks.
  18. #                                  Use "heartbeat" for a nice load indicator.
  19. #                                  (default "mmc")
  20. #         act_led_activelow        Set to "on" to invert the sense of the LED
  21. #                                  (default "off")
  22. #         act_led_gpio             Set which GPIO pin to use for the activity LED
  23. #                                  (in case you want to connect it to an external
  24. #                                  device)
  25. #                                  (default "16" on a non-Plus board, "47" on a
  26. #                                  Plus or Pi 2)
  27. #         N.B. It is recommended to only enable those interfaces that are needed.
  28. #         Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
  29. #         interfering with Pi Camera, I2S and SPI hogging GPIO pins, etc.)
  30. #         Note also that i2c, i2c_arm and i2c_vc are aliases for the physical
  31. #         interfaces i2c0 and i2c1. Use of the numeric variants is still possible
  32. #         but deprecated because the ARM/VC assignments differ between board
  33. #         revisions. The same board-specific mapping applies to i2c_baudrate,
  34. #         and the other i2c baudrate parameters.
  35.  
  36. #device_tree_param=i2c_arm=on
  37. #device_tree_param=i2c_vc=on
  38. device_tree_param=i2s=on
  39. #device_tree_param=spi=on
  40. #device_tree_param=act_led_trigger=mmc
  41.  
  42. # Uncomment one of these lines to enable an audio interface
  43. #device_tree_overlay=hifiberry-dac
  44. device_tree_overlay=hifiberry-dacplus
  45. #device_tree_overlay=hifiberry-digi
  46. #device_tree_overlay=hifiberry-amp
  47. #device_tree_overlay=iqaudio-dac
  48. #device_tree_overlay=iqaudio-dacplus
  49.  
  50. # Uncomment to enable the lirc-rpi module
  51. # Params: gpio_out_pin             GPIO pin for output (default "17")
  52. #         gpio_in_pin              GPIO pin for input (default "18")
  53. #         gpio_in_pull             Pull up/down/off on the input pin
  54. #                                  (default "down")
  55. #         sense                    Override the IR receive auto-detection logic:
  56. #                                    "1" = force active high
  57. #                                    "0" = force active low
  58. #                                    "-1" = use auto-detection
  59. #                                  (default "-1")
  60. #         softcarrier              Turn the software carrier "on" or "off"
  61. #                                  (default "on")
  62. #         invert                   "on" = invert the output pin (default "off")
  63. #         debug                    "on" = enable additional debug messages
  64. #                                  (default "off")
  65. #device_tree_overlay=lirc-rpi
  66. #device_tree_param=gpio_out_pin=17
  67. #device_tree_param=gpio_in_pin=18
  68. #device_tree_param=gpio_in_pull=down
  69.  
  70. # Uncomment to enable the w1-gpio Onewire interface module
  71. # Use this overlay if you *don't* need a pin to drive an external pullup
  72. # N.B. The parasitic power feature is not yet functional using DT.
  73. # Params: gpiopin                  GPIO pin for I/O (default "4")
  74. #device_tree_overlay=w1-gpio
  75. #device_tree_param=gpiopin=4
  76.  
  77. # Uncomment to enable the w1-gpio Onewire interface module
  78. # Use this overlay if you *do* need a pin to drive an external pullup
  79. # N.B. The parasitic power feature is not yet functional using DT.
  80. # Params: gpiopin                  GPIO pin for I/O (default "4")
  81. #         pullup                   GPIO pin for external pullup (default "5")
  82. #device_tree_overlay=w1-gpio
  83. #device_tree_param=gpiopin=4
  84. #device_tree_param=pullup=5
  85.  
  86. # Uncomment to enable pps-gpio (pulse-per-second time signal via GPIO)
  87. # Params: gpiopin                  GPIO input pin (default "18")
  88. #device_tree_overlay=pps-gpio
  89. #device_tree_param=gpiopin=18
  90.  
  91. # Uncomment to enable a generic I2C RTC overlay supporting ds1307, ds3231, pcf2127, and pcf8523
  92. #device_tree_overlay=i2c-rtc
  93.  
  94. # Uncomment to enable the PCF8523 Real Time Clock
  95. #device_tree_overlay=pcf8523-rtc
  96.  
  97. # Uncomment to enable the DS1307 Real Time Clock
  98. #device_tree_overlay=ds1307-rtc
  99.  
  100. # Uncomment to enable the BMP085/BMP180 temperature/pressure sensor
  101. #device_tree_overlay=bmp085_i2c-sensor
  102.  
  103. # Uncomment to enable an FB TFT module
  104. #device_tree_overlay=hy28a
  105. #device_tree_overlay=hy28b
  106. #device_tree_overlay=piscreen
  107. #device_tree_overlay=rpi-display
  108.  
  109. # Uncomment to enable the Microchip ENC28J60 Ethernet Controller
  110. #device_tree_overlay=enc28j60
  111.  
  112. # Uncomment if you get no picture on HDMI for a default "safe" mode
  113. #hdmi_safe=1
  114.  
  115. # Uncomment this if your display has a black border of unused pixels visible
  116. # and your display can output without overscan
  117. #disable_overscan=1
  118.  
  119. # Uncomment the following to adjust overscan. Use positive numbers if console
  120. # goes off screen, and negative if there is too much border
  121. #overscan_left=16
  122. #overscan_right=16
  123. #overscan_top=16
  124. #overscan_bottom=16
  125.  
  126. # Uncomment to force a console size. By default it will be display's size minus
  127. # overscan.
  128. #framebuffer_width=1280
  129. #framebuffer_height=720
  130.  
  131. # Uncomment if hdmi display is not detected and composite is being output
  132. #hdmi_force_hotplug=1
  133.  
  134. # Uncomment to force a specific HDMI mode (this will force VGA)
  135. #hdmi_group=1
  136. #hdmi_mode=1
  137.  
  138. # Uncomment to force a HDMI mode rather than DVI. This can make audio work in
  139. # DMT (computer monitor) modes
  140. #hdmi_drive=2
  141.  
  142. # Uncomment to set monitor mode to DMT
  143. #hdmi_group=2
  144.  
  145. # Uncomment to increase signal to HDMI, if you have interference, blanking, or
  146. # no display
  147. #config_hdmi_boost=4
  148.  
  149. # Uncomment for composite PAL
  150. #sdtv_mode=2
  151.  
  152. # Uncomment to overclock the ARM core. 700 MHz is the default.
  153. #arm_freq=800
  154.  
  155. # for more options see http://elinux.org/RPi_config.txt
  156.  
  157. ## Some over clocking settings, governor already set to ondemand
  158.  
  159. ##None
  160. #arm_freq=700
  161. #core_freq=250
  162. #sdram_freq=400
  163. #over_voltage=0
  164.  
  165. ##Modest
  166. #arm_freq=800
  167. #core_freq=300
  168. #sdram_freq=400
  169. #over_voltage=0
  170.  
  171. ##Medium
  172. #arm_freq=900
  173. #core_freq=333
  174. #sdram_freq=450
  175. #over_voltage=2
  176.  
  177. ##High
  178. #arm_freq=950
  179. #core_freq=450
  180. #sdram_freq=450
  181. #over_voltage=6
  182.  
  183. ##Turbo
  184. #arm_freq=1000
  185. #core_freq=500
  186. #sdram_freq=500
  187. #over_voltage=6
  188.  
  189. gpu_mem=128
  190. max_usb_current=1
  191. #dtoverlay=hifiberry-dacplus
  192. dtdebug=1
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