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FYP Network
07-12-2013, 12:53 AM,
Post: #16
RE: FYP Network
tak tercapai dek akal, gpio should binary 1 -or- 0, & gpio should slow. Sad
̿ ̿ ̿̿'̿̿\̵͇̿̿\=(•̪●)=/̵͇̿̿/'̿̿ ̿ ̿ ̿ - انا کڤيتݢولوڠ
[Image: 763440762.png]
07-12-2013, 01:01 AM, (This post was last modified: 07-12-2013, 01:03 AM by syahmiazhar.)
Post: #17
RE: FYP Network
tak terhad ke frequency radio FM, atas FM pun boleh... macam frequency VHF... lpstu dgr kt TV Thumbs Up atas lagi, UHF tak try lg... boleh rujuk kalau nk try... sori mencemar thread anda Big Grin
[Image: 1Z3i3.jpg]
07-12-2013, 12:34 PM,
Post: #18
RE: FYP Network
bestnye korang study bidang it ni
07-12-2013, 05:19 PM, (This post was last modified: 07-12-2013, 05:38 PM by fatah.)
Post: #19
RE: FYP Network

Depa kata generate freq dari PLLD ke GPIO4. No other pin can do other than GPIO 4.

Quote: Accessing Hardware

The python library calls a C program (provided both precompiled and in source form). The C program maps the Peripheral Bus (0x20000000) in physical memory into virtual address space using /dev/mem and mmap. To do this it needs root access, hence the sudo. Next it sets the clock generator module to enabled and sets it to output on GPIO4 (no other accessible pins can be used). It also sets the frequency to 100.0Mhz (provided from PLLD@500Mhz, divided by 5), which provides a carrier. At this point, radios will stop making a "fuzz" noise, and become silent.

Modulation is done by adjusting the frequency using the fractional divider between 100.025Mhz and 99.975Mhz, which makes the audio signal. We were being naieve with our subsampling algorithm - you can now get full 16 bit quality sound, and it even does FM pre-emphasis so that the result doesn't sound bass-heavy.

syahmi, modulation untuk FM kira okay lagi. kalu tv signal complex lagi, ada beberapa pecahan data signal e.g: red, green, blue, audio, & sync. GayFace
̿ ̿ ̿̿'̿̿\̵͇̿̿\=(•̪●)=/̵͇̿̿/'̿̿ ̿ ̿ ̿ - انا کڤيتݢولوڠ
[Image: 763440762.png]
07-12-2013, 06:26 PM,
Post: #20
RE: FYP Network
07-12-2013, 07:13 PM,
Post: #21
RE: FYP Network
a. fatah... yup, kat tv boleh terima audio je... boleh prank org... huhu, masa tengah tonton boleh switch audio. video kekal sebab frequency audio video berbeza (PAL... len2 tak tau).

diorang ada buat sampai 400++ MHz huhu
[Image: 1Z3i3.jpg]
13-12-2013, 05:11 PM,
Post: #22
RE: FYP Network
xpon abis senang ko nk bwat brkaitan network..ko try ni..

bwat satu server yg fungsi dia :

  1. DHCP Server
  2. Proxy Server
  3. File Sharing

utk bwat ni, OS yg aku suggest ko try Fedora 16..
proxy yg aku suggestkan, Squid Proxy (siap ngan network reporting)
file sharing..ermm, try Samba Server...

tips: disabled SElinux ^^
Sudah berkali diriku bilang,
Jangan kejar ilmu hacking for fame,


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