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PONode.js script not setting BeagleBone Black mux
 

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  1. PONode.js script not setting BeagleBone Black mux
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    <p>On my BeagleBone Black, when I run this script:</p> <pre><code>#!/usr/bin/node var b = require('bonescript'); b.getPlatform(printData); function printData(x) { console.log('name = ' + x.name); console.log('version = ' + x.version); console.log('serialNumber = ' + x.serialNumber); console.log('bonescript = ' + x.bonescript); console.log(); } b.pinMode("P9_11", b.OUTPUT, 7, 'pullup', 'slow'); b.pinMode("P9_13", b.OUTPUT, 7, 'pullup', 'slow'); b.pinMode("P9_15", b.OUTPUT, 7, 'pullup', 'slow'); b.pinMode("P9_17", b.OUTPUT, 7, 'pullup', 'slow'); b.getPinMode("P9_11", printPinMux); b.getPinMode("P9_13", printPinMux); b.getPinMode("P9_15", printPinMux); b.getPinMode("P9_17", printPinMux); function printPinMux(x) { console.log('mux = ' + x.mux); console.log('pullup = ' + x.pullup); console.log('slew = ' + x.slew); if(x.options) { console.log('options = ' + x.options.join(',')); } console.log('pin = ' + x.pin); console.log('name = ' + x.name); console.log('err = ' + x.err); console.log(); } </code></pre> <p>I get this output:</p> <pre><code>name = BeagleBone Black version = 0A5A serialNumber = 1813BBBK7710 bonescript = 0.2 mux = 7 pullup = pullup slew = fast options = gpmc_wait0,mii2_crs,NA,rmii2_crs_dv,mmc1_sdcd,NA,NA,gpio0_30 pin = P9_11 name = UART4_RXD err = undefined mux = 7 pullup = pullup slew = fast options = gpmc_wpn,mii2_rxerr,NA,rmii2_rxerr,mmc2_sdcd,NA,NA,gpio0_31 pin = P9_13 name = UART4_TXD err = undefined mux = 2 pullup = pulldown slew = slow options = spi0_cs0,mmc2_sdwp,i2c1_scl,NA,NA,NA,NA,gpio0_5 pin = P9_17 name = I2C1_SCL err = undefined mux = 0 pullup = pulldown slew = fast options = mii1_rxd3,NA,rgmii1_rd3,mmc0_dat5,mmc1_dat2,NA,mcasp0_axr0,gpio2_18 pin = P9_15 name = GPIO1_16 err = undefined </code></pre> <p>It looks like b.pinMode() isn't setting the pins' modes. Why?</p>
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    1. USDon Branson
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      1. USAnthony Webb
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    1. COWhat I've found out so far from G+ is that pins identified in the documentation as available for use by the user may not actually be useable. Certain pins are grabbed by the Linux kernel at boot time and are not available. As far as I've been able to find out, the list of pins that are truly available is not documented. Frankly, I'm annoyed that the pins are documented as available when they're really not, and that getting at the truth is like pulling teeth. I'm second-guessing my board choice. Is it like this with other boards?
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      1. PONode.js script not setting BeagleBone Black mux
      1. USDon Branson
    2. COLooks like kernel/devtree learning curve - the cicruitco/bonescript folks are helping out with this, and I'll post an update when I have something more.
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      1. USDon Branson
    3. CODon Branson do you have any updates?
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      1. PONode.js script not setting BeagleBone Black mux
      1. USVartan Arabyan
 

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