mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-23 00:42:28 +02:00
38bea8ec54
- atben/README-SMT, atusb/README-SMT: added "component to "orientation" - atben/README-SMT, atusb/README-SMT: added "drawings" to "footprint reference" - atben/README-SMT, atusb/README-SMT: mention once more that the automatic insertion file is for the front only
27 lines
902 B
Plaintext
27 lines
902 B
Plaintext
Board characteristics:
|
|
|
|
- two layers, components only on front
|
|
- smallest components are 0402 and 0.5 mm pitch QFN
|
|
- the following component orientation markings are on the silk screen:
|
|
B1: circle near pin 1
|
|
U1: triangle at the corner between pins 1 and 32
|
|
|
|
|
|
Design files:
|
|
|
|
atben-front.png Illustration of the PCB's front side (with silk screen)
|
|
atben-bom.csv Bill of materials
|
|
atben-pos.csv Automatic insertion file (front only)
|
|
atben-footprints.pdf Footprint reference drawings
|
|
|
|
The PCB design files (Gerbers, etc.) are in a separate archive, atben-pcb-*
|
|
|
|
|
|
Interpretation of files:
|
|
|
|
- for all coordinates, the origin is the lower left corner of the board
|
|
- coordinates in atben-pos.csv are in inches
|
|
- rotation in atben-pos.csv is in degrees, counter-clockwise
|
|
- in the footprint reference drawings, footprints are shown in the 0 degree
|
|
orientation and with their center at the crosshairs
|