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| author | Marcus Müller <marcus.mueller@ettus.com> | 2015-07-21 20:06:43 +0200 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2015-07-21 16:35:42 -0700 |
| commit | e889d685b4d8b94c2534f258a04b9725dc776695 (patch) | |
| tree | 37edb567fa06f1804063b1bd221336756c80c0f3 /host/docs | |
| parent | 21a93aeaa21d55b28103c6f4e59b88df1ca7ec36 (diff) | |
| download | uhd-e889d685b4d8b94c2534f258a04b9725dc776695.tar.gz uhd-e889d685b4d8b94c2534f258a04b9725dc776695.tar.bz2 uhd-e889d685b4d8b94c2534f258a04b9725dc776695.zip | |
docs: Added paragraph on GPIO maximum current, +3.3V supply
Diffstat (limited to 'host/docs')
| -rw-r--r-- | host/docs/gpio_api.dox | 4 | ||||
| -rw-r--r-- | host/docs/usrp_x3x0.dox | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/host/docs/gpio_api.dox b/host/docs/gpio_api.dox index d3bb4f0a9..98515d07b 100644 --- a/host/docs/gpio_api.dox +++ b/host/docs/gpio_api.dox @@ -13,6 +13,10 @@ disabling a TX or RX mixer). \subsection xgpio_fpanel_gpio X3x0 Front Panel GPIO +The GPIO port is not meant to drive big loads. You should not try to source more than 5mA per pin. + +The +3.3V is for ESD clamping purposes only and not designed to deliver high currents. + \subsubsection xgpio_fpanel_conn Connector \image html x3x0_gpio_conn.png "X3x0 GPIO Connectors" diff --git a/host/docs/usrp_x3x0.dox b/host/docs/usrp_x3x0.dox index f3e916ac1..9af68546f 100644 --- a/host/docs/usrp_x3x0.dox +++ b/host/docs/usrp_x3x0.dox @@ -584,6 +584,10 @@ Please see \ref page_gpsdo_x3x0 for information on configuring and using the int \image html x3x0_gpio_conn.png "X3x0 GPIO Connector" +The GPIO port is not meant to drive big loads. You should not try to source more than 5mA per pin. + +The +3.3V is for ESD clamping purposes only and not designed to deliver high currents. + ### Pin Mapping - Pin 1: +3.3V |