Difference between revisions of "Palawan EVT to DVT changes"

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(Palawan Rx Board changes)
(Palawan Tx Board changes)
 
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Enable low-speed USB operation by populating R15U with a 1.5k, 1% resistor.
 
Enable low-speed USB operation by populating R15U with a 1.5k, 1% resistor.
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===ECO4: Make debug pins oval===
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The debug pins on the side should be made oval, for easier soldering
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===ECO5: Add GND, VPP debug pins===
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To make life easier, add pins for probing GND and VPP.
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===ECO6: Change silkscreen for debug pins===
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The J- notation is extremely useless.  Use SWx/ADCx notation instead, as it's more useful.
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==Palawan Tx Board changes==
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===ECO7: Decrease white LED resistor R35B to 400 Ohm===
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This LED isn't that bright.  Decrease the resistance to around 400 ohm to brighten it up.
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===ECO8: Add more GND headers===
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GND headers are useful.  There are only two.  Make a lot more.  The board can be made thinner by placing the GND headers against one edge, and only using one hole rather than two.

Latest revision as of 06:37, 13 April 2016

Palawan Rx Board changes

ECO1: Swap D11U pins

The diode D11U footprint and schematic pins are swapped. Correct this.


ECO2: Send USB pullups to VPP

The USB pullups on USBDN_RST and USBDP_LED are going to VUSB. They should instead go to VPP, otherwise USB will fail to function.


ECO3: Populate R15U with 1.5k, 10%

Enable low-speed USB operation by populating R15U with a 1.5k, 1% resistor.


ECO4: Make debug pins oval

The debug pins on the side should be made oval, for easier soldering


ECO5: Add GND, VPP debug pins

To make life easier, add pins for probing GND and VPP.


ECO6: Change silkscreen for debug pins

The J- notation is extremely useless. Use SWx/ADCx notation instead, as it's more useful.


Palawan Tx Board changes

ECO7: Decrease white LED resistor R35B to 400 Ohm

This LED isn't that bright. Decrease the resistance to around 400 ohm to brighten it up.


ECO8: Add more GND headers

GND headers are useful. There are only two. Make a lot more. The board can be made thinner by placing the GND headers against one edge, and only using one hole rather than two.