#garfield Logs

May 23 2023

09:18 AM aandrew: polprog: heh that looks like one of those baofeng radios, I have a couple
09:37 AM polprog: aandrew: yeah, its "better" than these because it has full coverage from 50 to 600MHz
10:53 AM aandrew: *nods*
10:54 AM aandrew: I got a scanner DECADES ago because it could be easily modified to unlock the hole they put in the (analog) cellular band
11:54 AM polprog: it does AM on the air band, and all bands except for air and broadcast FM are tx-able
11:54 AM polprog: (250 and 300 and 600 MHz TX is locked but you can unlock it from the service menu by a secret key combo)
11:57 AM polprog: i made my first real draft
11:58 AM polprog: it's for the PDU we are building, i need the workshop to cut out an opening in the front of this chassis
11:58 AM polprog: https://polprog.net/rozne1/ircjunk/various/PMSM_chassis_cut.png
11:58 AM polprog: so i drew this
11:58 AM polprog: https://polprog.net/rozne1/ircjunk/various/PMSM_chassis_cut.pdf
11:59 AM polprog: afternoon in LibreCAD, i like this program
12:23 PM aandrew: any of you have any low level USB experience?
12:23 PM aandrew: trying to debug something and I *think* it's wrong because the signals are 4x faster than they should be
12:24 PM aandrew: https://ibb.co/P6r0Tkt
12:24 PM aandrew: now to me this looks like a valid USB FS packet. KJKJKJKK is there, but the bit times are wrong
12:24 PM aandrew: if my math is right, 1.5Mbit is 667ns/bit, and I'm see ~160ns.
12:25 PM aandrew: USB FS is 12Mbit which is 83.3ns/bit but the SYNC is 32 bits long not 8 but same KJKJ...KK
12:25 PM aandrew: so this is clearly a LS packet, but I think the protocol analyzer (and the device) is refusing to identify it as a packet because the bit time is wrong
03:23 PM polprog: four times sounds like a misconfigured prescaler to me
06:41 PM rue_mohr: ok I need to configure a router for the building supplies store...
10:16 PM rue_mohr: "rockauto" seems to have parts for my truck!
10:16 PM rue_mohr: the steering pump seems to be going
10:16 PM rue_mohr: but they have the window seals too!
11:36 PM rue_mohr: aliexpress.com/item/1005005400790668.html
11:37 PM rue_mohr: https://www.aliexpress.com/item/1005005212749386.html
11:37 PM rue_mohr: https://www.aliexpress.com/item/1005005400790668.html
11:42 PM rue_mohr: its funny tho, electric starts at $1500
11:44 PM rue_mohr: a trike is about the same as a bike