LMS-6 Radiosonde: Difference between revisions
add sections for CC1050<->ST7 and GPS<->ST7 busses |
Document U17. I can't figure out how to inline post an image, I uploaded it but it won't insert. |
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==Internal Busses== | ==Internal Busses== | ||
=== TI CC1050 to ST7 Bus === | ===TI CC1050 to ST7 Bus=== | ||
{| class="wikitable" | {| class="wikitable" | ||
!CC1050 | !CC1050 | ||
| Line 324: | Line 324: | ||
|}<br /> | |}<br /> | ||
=== GPS Chip to ST7 Bus === | ===GPS Chip to ST7 Bus=== | ||
{| class="wikitable" | {| class="wikitable" | ||
!GPS | !GPS | ||
| Line 399: | Line 399: | ||
'''U16''' - [http://web.archive.org/web/20190417163532/https://www.ti.com/lit/ds/symlink/lmv761.pdf LMV761MF] - Low Voltage Precision Comparator w/ Push-Pull Output <ref group="IC Footnotes" name="U16"> Package marking shows C22A. TI Part marking lookup provides LMV761. The SOT-23 footprint appears to match what is on the PCB.</ref> | '''U16''' - [http://web.archive.org/web/20190417163532/https://www.ti.com/lit/ds/symlink/lmv761.pdf LMV761MF] - Low Voltage Precision Comparator w/ Push-Pull Output <ref group="IC Footnotes" name="U16"> Package marking shows C22A. TI Part marking lookup provides LMV761. The SOT-23 footprint appears to match what is on the PCB.</ref> | ||
''U17 - (Marked Z252)'' | ''U17 - (Marked Z252) - 3v(blue) -> 5v(yellow) level translator *insert picture U17 here*'' | ||
''U18 - (Did not locate, maybe not placed?)'' | ''U18 - (Did not locate, maybe not placed?)'' | ||