【发布时间】：2014-01-22 13:02:52
【问题描述】：
我正在使用 BeagleBone Black 并尝试运行 bonescript。我正在运行 Debian Wheezy，其中包含最新的更新以及 node v0.10.21 和 bonescript 0.2.4 的最新版本。我可以使内部 LED 闪烁，所以我相当确定我的安装工作正常。我的问题是我无法控制任何 P8 或 P9 gpios。使用 bonescript 网站上的示例，我正在运行以下脚本。我不确定这个错误到底意味着什么，所以即使有人能指出我正确的方向，我也会很感激。
谢谢 斯科特
==============================================
var b = require('bonescript');
var led = "P8_3";
var state = 0;
b.pinMode(led, b.output);
toggleLED = function() {
state = state ? 0 : 1;
b.digitalWrite(led, state);
};
timer = setInterval(toggleLED, 100);
stopTimer = function() {
clearInterval(timer);
};
setTimeout(stopTimer, 30000);
================================================ ====== 我打开了bonescript调试，得到了以下关于找不到设备树片段的输出。
root@debian-armhf:/usr/lib/node_modules/bonescript# nodejs blinkext.js
debug: cpuinfo = processor : 0
model name : ARMv7 Processor rev 2 (v7l)
BogoMIPS : 660.76
Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc08
CPU revision : 2
Hardware : Generic AM33XX (Flattened Device Tree)
Revision : 0000
Serial : 0000000000000000
debug: index.js loaded
debug: pinMode(P8_3,,,,);
debug: templateFilename = /usr/lib/node_modules/bonescript/bspm_template.dts
debug: fragment = bspm_P8_3_2f
debug: command = dtc -O dtb -o /lib/firmware/bspm_P8_3_2f-00A0.dtbo -b 0 -@ /lib/firmware/bspm_P8_3_2f-00A0.dts
error: Failed to find devicetree fragment: bspm_P8_3_2f
info: 0: 54:PF---
1: 55:PF---
2: 56:PF---
3: 57:PF---
4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G
5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
debug: Unable to configure mux for pin [object Object]: Error loading devicetree overlay for P8_3 using template bspm
debug: getPinMode(P8_3);
debug: getPinMode(P8_3): Error: ENOENT, no such file or directory '/sys/kernel/debug/pinctrl/44e10800.pinmux/pins'
debug: pinMode: mode = {"pin":"P8_3","name":"GPIO1_6","options":["gpmc_ad6","mmc1_dat6","NA","NA","NA","NA","NA","gpio1_6"],"gpio":{"allocated":false}}
debug: getPinMode(P8_3);
debug: getPinMode(P8_3): Error: ENOENT, no such file or directory '/sys/kernel/debug/pinctrl/44e10800.pinmux/pins'
info: Error loading devicetree overlay for P8_3 using template bspm
================================================ ======== 这是我认为是bonescript 创建的覆盖模板。
/*
* This is a template-generated file from BoneScript
*/
/dts-v1/;
/plugin/;
/{
compatible = "ti,beaglebone", "ti,beaglebone-black";
part_number = "BS_PINMODE_P8_3_0x2f";
version = "00A0";
exclusive-use =
"P8.3",
"gpio1_6";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
bs_pinmode_P8_3_0x2f: pinmux_bs_pinmode_P8_3_0x2f {
pinctrl-single,pins = <0x018 0x2f>;
};
};
};
fragment@1 {
target = <&ocp>;
__overlay__ {
bs_pinmode_P8_3_0x2f_pinmux {
compatible = "bone-pinmux-helper";
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&bs_pinmode_P8_3_0x2f>;
target = <&am33xx_pinmux>;
__overlay__ {
bs_pinmode_P8_3_0x2f: pinmux_bs_pinmode_P8_3_0x2f {
pinctrl-single,pins = <0x018 0x2f>;
};
};
};
fragment@1 {
target = <&ocp>;
__overlay__ {
bs_pinmode_P8_3_0x2f_pinmux {
compatible = "bone-pinmux-helper";
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&bs_pinmode_P8_3_0x2f>;
};
};
};
};
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