Search found 174 matches

by justinleeyang
Sat Aug 03, 2019 10:25 am
Forum: External positioning systems
Topic: can we design and produce the HTC vive's basestations v1/v2 ?
Replies: 1
Views: 632

can we design and produce the HTC vive's basestations v1/v2 ?

hi

lighthouse position system, we must buy the HTC vive's device, can we design and produce likely devie to replace of the HTC vive's basestations v1/v2 ?
by justinleeyang
Thu Jun 20, 2019 10:49 am
Forum: Developer Discussions
Topic: after enable UART1 for DEBUG PIRNT, system start fail
Replies: 1
Views: 422

after enable UART1 for DEBUG PIRNT, system start fail

hi,

I want to enable UART1 for printf some information, then rewrite config.mk, add :

Code: Select all

CFLAGS += -DENABLE_UART1
CFLAGS += -DDEBUG_PRINT_ON_UART
after compile completely, then make flash, but the system fail.
hope help, thanks!
by justinleeyang
Fri Jun 14, 2019 4:04 am
Forum: Loco Positioning System
Topic: tdoa3 random send, packet will conflict, PTP(Precision Time Protocol) can solve it
Replies: 1
Views: 204

tdoa3 random send, packet will conflict, PTP(Precision Time Protocol) can solve it

hi,

tdoa3 random send, packet will conflict,I think that PTP(Precision Time Protocol) can solve it.
PTP can sync all anchor time, then every anchor run tdma mechanism to avoid collision。
by justinleeyang
Wed Mar 27, 2019 11:06 am
Forum: Loco Positioning System
Topic: enable twr and disable tdma range fail
Replies: 2
Views: 278

Re: enable twr and disable tdma range fail

hi,

only force enable loco deck, no enable other deck.
by justinleeyang
Tue Mar 26, 2019 2:34 pm
Forum: Loco Positioning System
Topic: enable twr and disable tdma range fail
Replies: 2
Views: 278

enable twr and disable tdma range fail

hi,

when enable TWR and disable TDMA, crazyflie2.0 range with 8 anchors, only run a while, then crazyflie2.0 system don't hang, bug don't drive dwm1000 to range with anchor. when enable tdma, always range successufully.
by justinleeyang
Fri Mar 22, 2019 1:39 am
Forum: Loco Positioning System
Topic: tdoa2 mode don't get the distance diff from cfclient Plotter Table
Replies: 1
Views: 263

tdoa2 mode don't get the distance diff from cfclient Plotter Table

hi,

with 1 crazyflie2.0 and 6 anchors, I try to get the distance diff form cfclient Plotter Table, but don't get right data.
111111.jpg
by justinleeyang
Thu Mar 21, 2019 8:12 am
Forum: Developer Discussions
Topic: usb0 or crazyradio connect have some different?
Replies: 3
Views: 346

Re: usb0 or crazyradio connect have some different?

hi,

maybe the nrf51822 16M xtal issue ?
by justinleeyang
Thu Mar 21, 2019 8:07 am
Forum: Developer Discussions
Topic: usb0 or crazyradio connect have some different?
Replies: 3
Views: 346

Re: usb0 or crazyradio connect have some different?

hi,

the crazyflie firmware and cfclient are the latest version. and I also try the release 2019.02 or 2018.10, the issue still exist.
by justinleeyang
Mon Mar 18, 2019 3:44 pm
Forum: Loco Positioning System
Topic: self-test pass, but cfclient don't get enough infomation and data?
Replies: 0
Views: 746

self-test pass, but cfclient don't get enough infomation and data?

hi, I testing 8 anchors and 1 crazyflie2.0, after the crazyflie2.0 connnect to cfclient, some infomation don't print, only printf the following info: unning! 9.02) CLEAN SYS: I am 0x203536564E4B500F003E0031 and I have 1024KB of flash! . 2db. OW: Cmd 0x20 timeout. asured: -15.24 AK8963: Self test [OK...
by justinleeyang
Fri Mar 15, 2019 2:35 pm
Forum: Developer Discussions
Topic: usb0 or crazyradio connect have some different?
Replies: 3
Views: 346

usb0 or crazyradio connect have some different?

when usb0 connect the pc, the cfclient can get all data, include parameters plotter, log TOC and Log Blocks, but when use crazyradio pa, cfclient can connect , only get the Battery and Link Quality, other data don't get, I update the newest firmware and crazyradio pa 0.53 version, why?