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Changes between Version 1 and Version 2 of FreeRunnerLEDs


Ignore:
Timestamp:
2009-11-18T20:05:11Z (10 years ago)
Author:
Jiri Svoboda
Comment:

Typo and formatting.

Legend:

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  • FreeRunnerLEDs

    v1 v2  
    1 = Programming Neo FreeRunner LEDs =
     1= Programming Neo !FreeRunner LEDs =
    22
    3 Neo FreeRunner has three LED indicators:
     3Neo !FreeRunner has three LED indicators:
    44
    55|| '''Color''' || '''Location'''      || '''IO Port/pin''' ||
     
    1919GPB has 11 pins (GPB0 through GPB1 inclusive).
    2020
    21 Register descriptions:
     21'''Register descriptions:'''
    2222 * GPBCON: Two configuration bits per pin (GPBCON![1:0] for GPB0, GPBCON![3:2] for GPB1, etc.), 00 = Input, 01 = Output, 10 = XXX, 11 = reserved. XXX refers to internal signals, different for each pin.
    2323 * GPBDAT: Obvious, write in output mode and read in input mode.
     
    2626For blinking LEDs, we select output mode (0b01) for GPB0..GPB2. Pull-down should be disabled. Then write to GPBDAT![0:2].
    2727
    28 References:
    29  * [http://www.opatnet.cz/elektronika/datasheet/U/um_s3c2442b_rev12.pdf Samsung S3C2442B Processor Datasheet] Porg B Control Registers, Page 9-10.
     28'''References:'''
     29 * [http://www.opatnet.cz/elektronika/datasheet/U/um_s3c2442b_rev12.pdf Samsung S3C2442B Processor Datasheet] Port B Control Registers, Page 9-10.
    3030 * [http://downloads.openmoko.org/developer/schematics/GTA02/Schematics_Freerunner-GTA02_A5-A7cumulative_public_RC0.pdf Neo FreeRunner Schematics] MCU, sheet 3.
    3131
    32 Notes:
     32'''Notes:'''
    3333 * Not verified