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README-SMT: various small clarifications

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- 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
This commit is contained in:
Werner Almesberger 2011-03-24 12:18:14 -03:00
parent f242368deb
commit 38bea8ec54
2 changed files with 8 additions and 8 deletions
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8
atben/README-SMT
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@ -2,7 +2,7 @@ Board characteristics:
- two layers, components only on front
- smallest components are 0402 and 0.5 mm pitch QFN
- the following orientation markings are on the silk screen:
- 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
@ -11,8 +11,8 @@ 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
atben-footprints.pdf Footprint reference
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-*
@ -22,5 +22,5 @@ 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, footprints are shown in the 0 degree
- in the footprint reference drawings, footprints are shown in the 0 degree
orientation and with their center at the crosshairs

8
atusb/README-SMT
View File

@ -3,7 +3,7 @@ Board characteristics:
- two layers, components only on front
- smallest components are 0402 and 0.5 mm pitch QFN
- one through-hole component: USB connector CON1
- the following orientation markings are on the silk screen:
- the following componet orientation markings are on the silk screen:
B1: circle near pin 1
D1: plus sign at the anode
U1, U2: triangle at the corner between pins 1 and 32
@ -13,8 +13,8 @@ Design files:
atusb-front.png Illustration of the PCB's front side (with silk screen)
atusb-bom.csv Bill of materials
atusb-pos.csv Automatic insertion file
atusb-footprints.pdf Footprint reference
atusb-pos.csv Automatic insertion file (front only)
atusb-footprints.pdf Footprint reference drawings
The PCB design files (Gerbers, etc.) are in a separate archive, atusb-pcb-*
@ -24,5 +24,5 @@ Interpretation of files:
- for all coordinates, the origin is the lower left corner of the board
- coordinates in atusb-pos.csv are in inches
- rotation in atusb-pos.csv is in degrees, counter-clockwise
- in the footprint reference, footprints are shown in the 0 degree
- in the footprint reference drawings, footprints are shown in the 0 degree
orientation and with their center at the crosshairs