Date:2010-09-10 21:18:20 (9 years 3 months ago)
Author:Werner Almesberger
Commit:d14e55bea286fbc25607bac1b907e47bc972f0de
Message:Updated to do list.

Files: TODO (4 diffs)

Change Details

TODO
2929atrf
3030====
3131
32AT86RF230-based IEEE 802.15.4 transceiver. Two variantes: one to make a USB
32AT86RF230-based IEEE 802.15.4 transceiver. Two variants: one to make a USB
3333dongle for use with any Linux host, and one that connects with SPI directly
3434inside a Ben.
3535
36Update: following Rikard Lindstrom's revelation that we can use the uSD slot
37also just as general GPIOs, the variant that goes inside the Ben can wait a
38bit and the atusd board for insertion into the uSD slot is being worked on
39first. We can verify most of the design of a fully integrated board with the
40atusd board and the latter will be of greater immediate use.
41
42
43Things done
44-----------
45
46- verify that the Ben can output an a) 16 MHz clock, and b) with +/- 40 ppm
47
48  Done, see ecn/ecn0005.txt. Works fine.
49
50- replace discrete balun and filter with integrated solution, to reduce BOM
51  size, maybe cost, insertion loss, and PCB space (see ATRF/ECN0003)
52
53  Done for atusd. At a first glamce, does not seem to affect performance.
54
55- check if we really need three DC blocking caps in the RF path
56
57  Reduced to two in atusd without apparent ill effects.
58
3659
3760Things not done yet
3861-------------------
...... 
5073  will already tell most of the story) with calibrated antenna for FCC/ETSI
5174  compliance assessment. Vary transmit power.
5275
53- use IEEE 802.15.4 stack from linux-zigbee
54
55- verify that the Ben can output an a) 16 MHz clock, and b) with +/- 40 ppm
56
57- replace discrete balun and filter with integrated solution, to reduce BOM
58  size, maybe cost, insertion loss, and PCB space (see ATRF/ECN0003)
59
60- check if we really need three DC blocking caps in the RF path
76- use IEEE 802.15.4 stack from linux-zigbee. The linux-zigbee kernel is
77  currently at 2.6.35. Once 2.6.36 is released, we should have Ben and
78  IEEE 802.15.4 support in the same kernel without further ado.
6179
6280- change layout of transceiver side of the board for placement inside Ben
6381
...... 
7189
7290- implement sleep mode
7391
92- (atusd) verify SPI signal timing, particularly the data clock
93
7494
7595Bugs to fix
7696-----------
7797
78- atrf vs. atspi naming is a bit confusing
98- atrf vs. atspi naming is a bit confusing. Rename atrf hardware to atusb,
99  and maybe the tools from atspi to atrf ?
79100
80101
81102ccrf
...... 
83104
84105Board similar to the atrf, but with the TI/Chipcon CC2520.
85106
107Cancelled. The CC2520 falls under US export restrictions, apparently because
108it contains an AES engine.
109
86110
87111cntr
88112====

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