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by ag123
Fri May 26, 2017 2:43 pm
Forum: STM32generic
Topic: [STM32GENERIC] SDIO DMA
Replies: 144
Views: 1472

Re: [STM32GENERIC] SDIO DMA

there may be some prior fat errors on the card. hence, we'd ignore it for now, going to re-run a new test 100 megs (102400000 bytes) test_in.bin strontium branded uSD card class 10 16GB ************************************************* Opening the read file.. Opening the write file.. Reading, Writin...
by ag123
Fri May 26, 2017 2:37 pm
Forum: STM32generic
Topic: [STM32GENERIC] SDIO DMA
Replies: 144
Views: 1472

Re: [STM32GENERIC] SDIO DMA

oops, it seemed the card is corrupted, this is caught in my linux dmesg system log [ 4085.713867] sdc: sdc1 [ 4087.396831] FAT-fs (sdc1): error, invalid access to FAT (entry 0x0f006300) [ 4087.396837] FAT-fs (sdc1): Filesystem has been set read-only [ 4098.257323] FAT-fs (sdc1): error, invalid acces...
by ag123
Fri May 26, 2017 2:21 pm
Forum: STM32generic
Topic: [STM32GENERIC] SDIO DMA
Replies: 144
Views: 1472

Re: [STM32GENERIC] SDIO DMA

thanks victor, 100 megs (102400000 bytes) test_in.bin strontium branded uSD card class 10 16GB http://www.strontium.biz/products/memory-cards/mobile-memory-cards/ Reading, Writing and calculating CRC of In file... ************************************************* Done in 61185 msecs ****************...
by ag123
Fri May 26, 2017 2:02 pm
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 82
Views: 1593

Re: Andy's Postbag and random ebay links

seem like wifi has become an all purpose generic radio device including as a radar :lol:
by ag123
Fri May 26, 2017 1:57 pm
Forum: General discussion
Topic: Minimum ADC reference voltage?
Replies: 3
Views: 21

Re: Minimum ADC reference voltage?

not too familiar with adc but AN2586 Getting started with STM32F10xxx hardware development http://www.st.com/content/ccc/resource/technical/document/application_note/6c/a3/24/49/a5/d4/4a/db/CD00164185.pdf/files/CD00164185.pdf/jcr:content/translations/en.CD00164185.pdf page 7 1.2 Power supply schemes...
by ag123
Fri May 26, 2017 12:31 pm
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 82
Views: 1593

Re: Andy's Postbag and random ebay links

if you use SSID, may be you could even get their *location* to within decimeter accuracy :lol:
http://web.stanford.edu/~skatti/pubs/si ... spotfi.pdf
by ag123
Fri May 26, 2017 11:45 am
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 82
Views: 1593

Re: Andy's Postbag and random ebay links

actually if your WIFI router or even better network cards with multiple antennas has those MIMO and very important CSI (nope that isn't the CSI drama on TV, CSI stands for Channel State Information), you could probably use that as your radar http://pdcc.ntu.edu.sg/wands/Atheros/ http://pdcc.ntu.edu....
by ag123
Fri May 26, 2017 10:19 am
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 82
Views: 1593

Re: Andy's Postbag and random ebay links

well, i'm thinking if someone decides to discard their old satellite dish and fit a new shiny one, then you may be in luck to pick that up. otherwise perhaps we can improvise an umbrella?

oh google never seem to fail to find incredible ideas :lol:
http://www.freeantennas.com/projects/template/
by ag123
Fri May 26, 2017 9:49 am
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 82
Views: 1593

Re: Andy's Postbag and random ebay links

i'm not sure about the cheap(er) radars, but someone has tried mounting the HB100 on a tv microwave dish and posted a video :lol:
by ag123
Fri May 26, 2017 9:42 am
Forum: STM32generic
Topic: [STM32GENERIC] SDIO DMA
Replies: 144
Views: 1472

Re: [STM32GENERIC] SDIO DMA

do you happen to have a binary of it? i'd try it out as well ;)

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