We know from CNTR that the capacitance of the 0603 TVS (EPCOS CT0603M4G,
200 pF) is too large and can disturb the USB signal. The 0402 TVS
(Panasonic EZJ-P0V080GA, 100 pF) works much better.
Since we have lots of 0402 components already, just change the remaining
0603 to 0402, too.
- usb.sch (VR1, VR2, VR3): change from 0603 to 0402 and from 5V5 to 5V6
- usb.sch (C1, C2, R1): change from 0603 to 0402
- atrf.sch (R3): set footprint to 0402
- atusb.pro: replaced modules/mini-usb with modules/usb_a_plug
- atusb.pro: removed extension from components/balun-smt6.lib
- atusb.cmp: update footprints for above changes
- atusb.cmp: change 0402 to 0402-M and 0603 to 0603-M, for easier
soldering
This way, we can plug the device into a USB port, like a USB stick.
We use a real plug (instead of shaping the PCB in the form of a plug)
for better mechanical stability.
- atusb.pro: change from components/mini_usb_b to components/usb_a_plug
- usb.sch (CON1): replace MINI_USB_B with USB_A_PLUG
The C2 pads were originally sized for permanently soldering a 100 mil
header. For development, a temporary connection is sufficient. Eventually,
we will just use pogo pins to make this connection.
- usb.sch: changed C2 pads from PAD_120x60 to PAD_60x60
- usb.sch: added comment that pads should be spaced at 100 mil interval
- atusb.sch: removed test points for signals going between USB and RF side
- atusb.sch: TST is no longer a rework item - removed comment saying it is
- atusb.sch, usb.sch, atrf.sch: bumped version number to 100930
- atusb/atrf.sch (C6, C7): use canonical name 820fF instead of 0.82pF
- atusb/usb.sch (VR1, VR2, VR3): changed value from 5V6 to 5V5 for
compatibility with selected part
- atusb/atusb.sch: commit noise
- atusb/atusb.brd: reloaded for value changes
- atrf/: rename to atusb/
- atrf/wpan-atrf.pro, atrf/wpan-atrf.sch, atrf/wpan-atrf.brd,
atrf/wpan-atrf.cmp: rename to atusb.*
- atrf/Makefile: change ben-wpan to atusb
- atrf/atusb.pro (LastNetListRead): update for name change
- tools/Makefile.common (CFLAGS): change fw/ include location from atrf/
to atusb/
