Tag: config
Raspberry Pi config.txt with comments
18/08/2013
Its always handy to have a raspberry Pi config.txt cheat sheet available…
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 |
#################################################################### ## Raspberry Pi Configuration Settings for PiBang Linux ## ## Revision 2, 2013/07/18 ## ## Details taken from the eLinux wiki ## For up-to-date information please refer to wiki page. ## ## Wiki Location : http://elinux.org/RPi_config.txt ## ## This text file was kindly originally created by: ## Paul Young <http://github.com/Evilpaul> ## ## ## Description: ## Details of each setting are described with each section that ## begins with a double hashed comment ('##') ## It is up to the user to remove the single hashed comment ('#') ## from each option they want to enable, and to set the specific ## value of that option. #### WARNING: Setting the following combination of parameters will set a ## permanent bit within the SOC and your warranty is void. ## over_voltage>0, and at least one of the following: ## force_turbo=1 ## current_limit_override=0x5A000020 ## temp_limit>85 ## ## Overclock settings will be disabled if the SoC reaches temp_limit ## ##################################################################### ################################################################################ ################################################################################ ## Standard Definition Video Settings ################################################################################ ## sdtv_mode ## defines the TV standard for composite output ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Normal NTSC (Default) ## 1 Japanese version of NTSC - no pedestal ## 2 Normal PAL ## 3 Brazilian version of PAL - 525/60 rather than 625/50, different ## subcarrier ## #sdtv_mode=0 ## sdtv_aspect ## defines the aspect ratio for composite output ## ## Value Description ## ------------------------------------------------------------------------- ## 1 4:3 (Default) ## 2 14:9 ## 3 16:9 ## #sdtv_aspect=1 ## sdtv_disable_colourburst ## Disables colour burst on composite output. The picture will be ## monochrome, but possibly sharper ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Colour burst is enabled (Default) ## 1 Colour burst is disabled ## #sdtv_disable_colourburst=1 ################################################################################ ## High Definition Video Settings ################################################################################ ## hdmi_safe ## Use "safe mode" settings to try to boot with maximum hdmi compatibility. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Disabled (Default) ## 1 Enabled (this does: hdmi_force_hotplug=1, ## hdmi_ignore_edid=0xa5000080, ## config_hdmi_boost=4, hdmi_group=2, ## hdmi_mode=4, disable_overscan=0, ## overscan_left=24, overscan_right=24, ## overscan_top=24, overscan_bottom=24) ## #hdmi_safe=1 ## hdmi_force_hotplug ## Pretends HDMI hotplug signal is asserted so it appears a HDMI display ## is attached ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Disabled (Default) ## 1 Use HDMI mode even if no HDMI monitor is detected ## #hdmi_force_hotplug=1 ## hdmi_ignore_hotplug ## Pretends HDMI hotplug signal is not asserted so it appears a HDMI ## display is not attached ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Disabled (Default) ## 1 Use composite mode even if HDMI monitor is detected ## #hdmi_ignore_hotplug=1 ## hdmi_drive ## chooses between HDMI and DVI modes ## ## Value Description ## ------------------------------------------------------------------------- ## 1 Normal DVI mode (No sound) ## 2 Normal HDMI mode (Sound will be sent if supported and enabled) ## #hdmi_drive=2 ## hdmi_ignore_edid ## Enables the ignoring of EDID/display data ## #hdmi_ignore_edid=0xa5000080 ## hdmi_edid_file ## Read the EDID data from the edid.dat file instead of from the attached ## device ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Read EDID data from attached device (Default) ## 1 Read EDID data from edid.txt file ## #hdmi_edid_file=1 ## hdmi_ignore_edid_audio ## Pretends all audio formats are unsupported by display. This means ALSA ## will default to analogue. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use EDID provided values (Default) ## 1 Pretend all audio formats are unsupported ## #hdmi_ignore_edid_audio=1 ## hdmi_force_edid_audio ## Pretends all audio formats are supported by display, allowing ## passthrough of DTS/AC3 even when not reported as supported. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use EDID provided values (Default) ## 1 Pretend all audio formats are supported ## #hdmi_force_edid_audio=1 ## hdmi_force_edid_3d ## Pretends all CEA modes support 3D even when edid doesn't indicate ## support for them. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use EDID provided values (Default) ## 1 Pretend 3D mode is supported ## #hdmi_force_edid_3d=1 ## avoid_edid_fuzzy_match ## Avoid fuzzy matching of modes described in edid. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use fuzzy matching (Default) ## 1 Avoid fuzzy matching ## #avoid_edid_fuzzy_match=1 ## hdmi_pixel_encoding ## Force the pixel encoding mode. ## By default it will use the mode requested from edid so shouldn't ## need changing. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use EDID provided values (Default) ## 1 RGB limited (16-235) ## 2 RGB full ( 0-255) ## 3 YCbCr limited (16-235) ## 4 YCbCr limited ( 0-255) ## #hdmi_pixel_encoding=1 ## hdmi_group ## Defines the HDMI type ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Use the preferred group reported by the edid (Default) ## 1 CEA ## 2 DMT ## #hdmi_group=1 ## hdmi_mode ## defines screen resolution in CEA or DMT format ## ## H means 16:9 variant (of a normally 4:3 mode). ## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated ## twice) ## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel ## repeated four times) ## reduced blanking means fewer bytes are used for blanking within the data ## stream (i.e. lower clock rate, with fewer wasted bytes) ## ## Value hdmi_group=CEA hdmi_group=DMT ## ------------------------------------------------------------------------- ## 1 VGA 640x350 85Hz ## 2 480p 60Hz 640x400 85Hz ## 3 480p 60Hz H 720x400 85Hz ## 4 720p 60Hz 640x480 60Hz ## 5 1080i 60Hz 640x480 72Hz ## 6 480i 60Hz 640x480 75Hz ## 7 480i 60Hz H 640x480 85Hz ## 8 240p 60Hz 800x600 56Hz ## 9 240p 60Hz H 800x600 60Hz ## 10 480i 60Hz 4x 800x600 72Hz ## 11 480i 60Hz 4x H 800x600 75Hz ## 12 240p 60Hz 4x 800x600 85Hz ## 13 240p 60Hz 4x H 800x600 120Hz ## 14 480p 60Hz 2x 848x480 60Hz ## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE ## 16 1080p 60Hz 1024x768 60Hz ## 17 576p 50Hz 1024x768 70Hz ## 18 576p 50Hz H 1024x768 75Hz ## 19 720p 50Hz 1024x768 85Hz ## 20 1080i 50Hz 1024x768 120Hz ## 21 576i 50Hz 1152x864 75Hz ## 22 576i 50Hz H 1280x768 reduced blanking ## 23 288p 50Hz 1280x768 60Hz ## 24 288p 50Hz H 1280x768 75Hz ## 25 576i 50Hz 4x 1280x768 85Hz ## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking ## 27 288p 50Hz 4x 1280x800 reduced blanking ## 28 288p 50Hz 4x H 1280x800 60Hz ## 29 576p 50Hz 2x 1280x800 75Hz ## 30 576p 50Hz 2x H 1280x800 85Hz ## 31 1080p 50Hz 1280x800 120Hz reduced blanking ## 32 1080p 24Hz 1280x960 60Hz ## 33 1080p 25Hz 1280x960 85Hz ## 34 1080p 30Hz 1280x960 120Hz reduced blanking ## 35 480p 60Hz 4x 1280x1024 60Hz ## 36 480p 60Hz 4x H 1280x1024 75Hz ## 37 576p 50Hz 4x 1280x1024 85Hz ## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking ## 39 1080i 50Hz reduced blanking 1360x768 60Hz ## 40 1080i 100Hz 1360x768 120Hz reduced blanking ## 41 720p 100Hz 1400x1050 reduced blanking ## 42 576p 100Hz 1400x1050 60Hz ## 43 576p 100Hz H 1400x1050 75Hz ## 44 576i 100Hz 1400x1050 85Hz ## 45 576i 100Hz H 1400x1050 120Hz reduced blanking ## 46 1080i 120Hz 1440x900 reduced blanking ## 47 720p 120Hz 1440x900 60Hz ## 48 480p 120Hz 1440x900 75Hz ## 49 480p 120Hz H 1440x900 85Hz ## 50 480i 120Hz 1440x900 120Hz reduced blanking ## 51 480i 120Hz H 1600x1200 60Hz ## 52 576p 200Hz 1600x1200 65Hz ## 53 576p 200Hz H 1600x1200 70Hz ## 54 576i 200Hz 1600x1200 75Hz ## 55 576i 200Hz H 1600x1200 85Hz ## 56 480p 240Hz 1600x1200 120Hz reduced blanking ## 57 480p 240Hz H 1680x1050 reduced blanking ## 58 480i 240Hz 1680x1050 60Hz ## 59 480i 240Hz H 1680x1050 75Hz ## 60 1680x1050 85Hz ## 61 1680x1050 120Hz reduced blanking ## 62 1792x1344 60Hz ## 63 1792x1344 75Hz ## 64 1792x1344 120Hz reduced blanking ## 65 1856x1392 60Hz ## 66 1856x1392 75Hz ## 67 1856x1392 120Hz reduced blanking ## 68 1920x1200 reduced blanking ## 69 1920x1200 60Hz ## 70 1920x1200 75Hz ## 71 1920x1200 85Hz ## 72 1920x1200 120Hz reduced blanking ## 73 1920x1440 60Hz ## 74 1920x1440 75Hz ## 75 1920x1440 120Hz reduced blanking ## 76 2560x1600 reduced blanking ## 77 2560x1600 60Hz ## 78 2560x1600 75Hz ## 79 2560x1600 85Hz ## 80 2560x1600 120Hz reduced blanking ## 81 1366x768 60Hz ## 82 1080p 60Hz ## 83 1600x900 reduced blanking ## 84 2048x1152 reduced blanking ## 85 720p 60Hz ## 86 1366x768 reduced blanking ## #hdmi_mode=1 ## config_hdmi_boost ## configure the signal strength of the HDMI interface. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 (Default) ## 1 ## 2 ## 3 ## 4 Try if you have interference issues with HDMI ## 5 ## 6 ## 7 Maximum ## #config_hdmi_boost=0 ## hdmi_ignore_cec_init ## Doesn't sent initial active source message. Avoids bringing ## (CEC enabled) TV out of standby and channel switch when rebooting. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Normal behaviour (Default) ## 1 Doesn't sent initial active source message ## #hdmi_ignore_cec_init=1 ## hdmi_ignore_cec ## Pretends CEC is not supported at all by TV. ## No CEC functions will be supported. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Normal behaviour (Default) ## 1 Pretend CEC is not supported by TV ## #hdmi_ignore_cec=1 ################################################################################ ## Overscan Video Settings ################################################################################ ## overscan_left ## Number of pixels to skip on left ## #overscan_left=0 ## overscan_right ## Number of pixels to skip on right ## #overscan_right=0 ## overscan_top ## Number of pixels to skip on top ## #overscan_top=0 ## overscan_bottom ## Number of pixels to skip on bottom ## #overscan_bottom=0 ## disable_overscan ## Set to 1 to disable overscan ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Overscan Enabled (Default) ## 1 Overscan Disabled ## #disable_overscan=1 ################################################################################ ## Framebuffer Video Settings ################################################################################ ## framebuffer_width ## Console framebuffer width in pixels. Default is display width minus ## overscan. ## #framebuffer_width=0 ## framebuffer_height ## Console framebuffer height in pixels. Default is display height minus ## overscan. ## #framebuffer_height=0 ## framebuffer_depth ## Console framebuffer depth in bits per pixel. ## ## Value Description ## ------------------------------------------------------------------------- ## 8 Valid, but default RGB palette makes an unreadable screen ## 16 (Default) ## 24 Looks better but has corruption issues as of 2012/06/15 ## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1 ## and shows the wrong colors as of 2012/06/15 ## #framebuffer_depth=16 ## framebuffer_ignore_alpha ## Set to 1 to disable alpha channel. Helps with 32bit. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Enable Alpha Channel (Default) ## 1 Disable Alpha Channel ## #framebuffer_ignore_alpha=0 ################################################################################ ## General Video Settings ################################################################################ ## display_rotate ## Rotate the display clockwise or flip the display. ## The 90 and 270 degrees rotation options require additional memory on GPU, ## so won't work with the 16M GPU split. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 0 degrees (Default) ## 1 90 degrees ## 2 180 degrees ## 3 270 degrees ## 0x10000 Horizontal flip ## 0x20000 Vertical flip ## #display_rotate=0 ################################################################################ ## Licensed Codecs ## ## Hardware decoding of additional codecs can be enabled by purchasing a ## license that is locked to the CPU serial number of your Raspberry Pi. ## ## Up to 8 licenses per CODEC can be specified as a comma seperated list. ## ################################################################################ ## decode_MPG2 ## License key to allow hardware MPEG-2 decoding. ## #decode_MPG2=0x12345678 ## decode_WVC1 ## License key to allow hardware VC-1 decoding. ## #decode_WVC1=0x12345678 ################################################################################ ## Camera Settings ################################################################################ ## disable_camera_led ## Turn off the red camera led when recording video or taking a still ## picture. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 LED enabled (Default) ## 1 LED disabled ## #disable_camera_led=1 ################################################################################ ## Test Settings ################################################################################ ## test_mode ## Enable test sound/image during boot for manufacturing test. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Disable Test Mod (Default) ## 1 Enable Test Mode ## #test_mode=0 ################################################################################ ## Memory Settings ################################################################################ ## disable_l2cache ## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled ## kernel. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Enable L2 Cache (Default) ## 1 Disable L2 cache ## #disable_l2cache=0 ## gpu_mem ## GPU memory allocation in MB for all board revisions. ## ## Default 64 ## gpu_mem=64 ## gpu_mem_256 ## GPU memory allocation in MB for 256MB board revision. ## This option overrides gpu_mem. ## #gpu_mem_256=128 ## gpu_mem_512 ## GPU memory allocation in MB for 512MB board revision. ## This option overrides gpu_mem. ## #gpu_mem_512=128 ## disable_pvt ## Disable adjusting the refresh rate of RAM every 500ms ## (measuring RAM temparature). ## #disable_pvt=1 ################################################################################ ## CMA - Dynamic Memory Split ## ## CMA enables dynamic management of the ARM and GPU memory split at runtime. ## ## The following options need to be in cmdline.txt for CMA to work: ## coherent_pool=6M smsc95xx.turbo_mode=N ## ################################################################################ ## cma_lwm ## When GPU has less than cma_lwm (low water mark) memory available it ## will request some from ARM. ## #cma_lwm=16 ## cma_hwm ## When GPU has more than cma_hwm (high water mark) memory available it ## will release some to ARM. ## #cma_hwm=32 ################################################################################ ## Boot Option Settings ################################################################################ ## disable_commandline_tags ## Stop start.elf from filling in ATAGS (memory from 0x100) before ## launching kernel ## #disable_commandline_tags=0 ## cmdline (string) ## Command line parameters. Can be used instead of cmdline.txt file ## #cmdline="" ## kernel (string) ## Alternative name to use when loading kernel. ## #kernel="" ## kernel_address ## Address to load kernel.img file at ## #kernel_address=0x00000000 ## kernel_old ## Support loading old kernels ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Disabled (Default) ## 1 Load kernel at address 0x00000000 ## #kernel_old=1 ## ramfsfile (string) ## ramfs file to load ## #ramfsfile="" ## ramfsaddr ## Address to load ramfs file at ## #ramfsaddr=0x00000000 ## initramfs (string address) ## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in ## one option). ## ## NOTE: this option uses different syntax than all other options - you ## should not use "=" character here. ## #initramfs initramf.gz 0x00800000 ## device_tree_address ## Address to load device_tree at ## #device_tree_address=0x00000000 ## init_uart_baud ## Initial uart baud rate. ## ## Default 115200 ## #init_uart_baud=115200 ## init_uart_clock ## Initial uart clock. ## ## Default 3000000 (3MHz) ## #init_uart_clock=3000000 ## init_emmc_clock ## Initial emmc clock, increasing this can speedup your SD-card. ## ## Default 100000000 (100mhz) ## #init_emmc_clock=100000000 ## boot_delay ## Wait for a given number of seconds in start.elf before loading ## kernel.img. ## ## delay = (1000 * boot_delay) + boot_delay_ms ## ## Default 1 ## #boot_delay=0 ## boot_delay_ms ## Wait for a given number of milliseconds in start.elf before loading ## kernel.img. ## ## delay = (1000 * boot_delay) + boot_delay_ms ## ## Default 0 ## #boot_delay_ms=0 ## avoid_safe_mode ## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode. ## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO), ## then this setting can be used to ensure Safe Mode is not triggered. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Respect Safe Mode input (Default) ## 1 Ignore Safe Mode input ## #avoid_safe_mode=1 ## disable_splash ## Avoids the rainbow splash screen on boot. ## ## Value Description ## ------------------------------------------------------------------------- ## 0 Splash screen enabled (Default) ## 1 Splash screen disabled ## #disable_splash=1 ###################################################################### ## Overclocking Settings ## ## ARM, SDRAM and GPU each have their own PLLs and can have unrelated ## frequencies. ## ## The GPU core, h264, v3d and isp share a PLL, so need to have related ## frequencies. ## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq) ## gpu_freq = pll_freq / [even number] ## ## The effective gpu_freq is automatically rounded to nearest even ## integer, so asking for core_freq = 500 and gpu_freq = 300 will ## result in divisor of 2000/300 = 6.666 => 6 and so 333.33MHz. ## ## ## Standard Profiles: ## arm_freq core_freq sdram_freq over_voltage ## ---------------------------------------------------------------- ## None 700 250 400 0 ## Modest 800 300 400 0 ## Medium 900 333 450 2 ## High 950 450 450 6 ## Turbo 1000 500 500 6 ## ####################################################################### ## force_turbo ## Control the kernel "ondemand" governor. It has no effect if no ## overclock settings are specified. ## ## Value Description ## ---------------------------------------------------------------- ## 0 Enable dynamic clocks and voltage for the ARM core, GPU ## core and SDRAM (Default). ## Overclocking of h264_freq, v3d_freq and isp_freq is ## ignored. ## 1 Disable dynamic clocks and voltage for the ARM core, GPU ## core and SDRAM. ## Overclocking of h264_freq, v3d_freq and isp_freq is ## allowed. ## #force_turbo=0 ## initial_turbo ## Enables turbo mode from boot for the given value in seconds (up ## to 60) or until cpufreq sets a frequency. Can help with sdcard ## corruption if overclocked. ## ## Default 0 ## #initial_turbo=0 ## temp_limit ## Overheat protection. Sets clocks and voltages to default when ## the SoC reaches this Celsius value. ## Setting this higher than default voids warranty. ## ## Default 85 ## #temp_limit=85 ## arm_freq ## Frequency of ARM in MHz. ## ## Default 700. ## arm_freq=800 ## arm_freq_min ## Minimum frequency of ARM in MHz (used for dynamic clocking). ## ## Default 700. ## #arm_freq_min=700 ## gpu_freq ## Sets core_freq, h264_freq, isp_freq, v3d_freq together. ## ## Default 250. ## #gpu_freq=250 ## core_freq ## Frequency of GPU processor core in MHz. It has an impact on ARM ## performance since it drives L2 cache. ## ## Default 250. ## core_freq=250 ## core_freq_min ## Minimum frequency of GPU processor core in MHz (used for dynamic ## clocking). It has an impact on ARM performance since it drives L2 ## cache. ## ## Default 250. ## #core_freq_min=250 ## h264_freq ## Frequency of hardware video block in MHz. ## ## Default 250. ## #h264_freq=250 ## isp_freq ## Frequency of image sensor pipeline block in MHz. ## ## Default 250. ## #isp_freq=250 ## v3d_freq ## Frequency of 3D block in MHz. ## ## Default 250. ## #v3d_freq=250 ## sdram_freq ## Frequency of SDRAM in MHz. ## ## Default 400. ## sdram_freq=400 ## sdram_freq_min ## Minimum frequency of SDRAM in MHz (used for dynamic clocking). ## ## Default 400. ## #sdram_freq_min=400 ## avoid_pwm_pll ## Unlink core_freq from the rest of the gpu. Analog audio should ## still work, but from a fractional divider, so lower quality. ## ## Value Description ## ---------------------------------------------------------------- ## 0 Linked core_freq (Default) ## 1 Unlinked core_freq ## #avoid_pwm_pll=1 ###################################################################### ## Voltage Settings ###################################################################### ## current_limit_override ## Disables SMPS current limit protection. Can help if you are ## currently hitting a reboot failure when overclocking too high. ## #current_limit_override=0x5A000020 ## over_voltage ## ARM/GPU core voltage adjust. ## ## Value Description ## ---------------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V (requires force_turbo=1) ## 8 1.4 V (requires force_turbo=1) ## over_voltage=0 ## over_voltage_min ## Minimum ARM/GPU core voltage adjust (used for dynamic clocking). ## ## Value Description ## --------------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V (requires force_turbo=1) ## 8 1.4 V (requires force_turbo=1) ## #over_voltage_min=0 ## over_voltage_sdram ## Sets over_voltage_sdram_c, over_voltage_sdram_i, ## over_voltage_sdram_p together ## ## Value Description ## ----------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V ## 8 1.4 V ## #over_voltage_sdram=0 ## over_voltage_sdram_c ## SDRAM controller voltage adjust. ## ## Value Description ## ------------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V ## 8 1.4 V ## #over_voltage_sdram_c=0 ## over_voltage_sdram_i ## SDRAM I/O voltage adjust. ## ## Value Description ## -------------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V ## 8 1.4 V ## #over_voltage_sdram_i=0 ## over_voltage_sdram_p ## SDRAM phy voltage adjust. ## ## Value Description ## --------------------------------------------------------------- ## -16 0.8 V ## -15 0.825 V ## -14 0.85 V ## -13 0.875 V ## -12 0.9 V ## -11 0.925 V ## -10 0.95 V ## -9 0.975 V ## -8 1.0 V ## -7 1.025 V ## -6 1.05 V ## -5 1.075 V ## -4 1.1 V ## -3 1.125 V ## -2 1.15 V ## -1 1.175 V ## 0 1.2 V (Default) ## 1 1.225 V ## 2 1.25 V ## 3 1.275 V ## 4 1.3 V ## 5 1.325 V ## 6 1.35 V ## 7 1.375 V ## 8 1.4 V ## #over_voltage_sdram_p=0 |
Share the post "Raspberry Pi config.txt with comments"