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changed to pin mode to support softPwm.

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bugfix in blink.sh - wring pin
improving the maxdetect routing - a little.
gpio pins
This commit is contained in:
Gordon Henderson
2014-05-20 11:43:07 +01:00
parent f18c8f7204
commit 05e2f67e7f
11 changed files with 281 additions and 21 deletions
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27
gpio/gpio.1
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@@ -114,6 +114,28 @@ respective logic levels.
Write the given value (0 or 1) to the pin. You need to set the pin
to output mode first.
.TP
.B aread <pin>
Read the analog value of the given pin. This needs to be uses in
conjunction with a -x flag to add in an extension that handles analog
inputs. respective logic levels.
e.g. gpio -x mcp3002:200:0 aread 200
will read the first analog input on an mcp3002 SPI ADC chip.
.TP
.B awrite <pin> <value>
Write the analog value to the given pin. This needs to be used in
conjunction with a -x flag to add in an extension that handles analog
inputs. respective logic levels.
e.g. gpio -x mcp4802:200:0 awrite 200 128
will write the value 128 to the first DAC port on an mcp4802 chip on
the Pi's SPI bus 0.
.TP
.B wb <value>
Write the given byte to the 8 main GPIO pins. You can prefix it with 0x
@@ -132,8 +154,9 @@ digital and analog read on each pin in-turn.
.TP
.B reset
Resets the GPIO - As much as it's possible to do. All pins are set to input
mode and all the internal pull-up/down resistors are disconnected (tristate mode).
Resets the GPIO - As much as it's possible to do. All pins are set to
input mode and all the internal pull-up/down resistors are disconnected
(tristate mode).
The reset command is usable with an extension module (via the -x parameter),
but it's limited to turning the pin into input mode (if applicable) and