CVAVR 2.05.3

V2.05.3 Commercial Release
 
Compiler 

• added support for graphic LCDs with 160x80, 160x128 resolution and Toshiba T6963C controller
• added support for graphic LCDs with 180x32 resolution and SED1520 controller
• modified the glcd_putchar function (graphics.h) so that it fills the spaces between the characters with the background color
• added the GLCD_CLEARBLOCK and GLCD_SETBLOCK modes to the glcd_block function from the hardware abstraction layer for graphic LCDs

CodeWizardAVR 

• fixed: when switching from the ATmega128 chip to ATmega103 the Mode options for External Interrupts 4 to 7 remained those of ATmega128
• fixed: the comments for the code generated for disabling the Digital Input Buffers on AIN0 and AIN1 inputs were not correct for the ATmega48A/48PA/88A/88PA/168A/168PA/328/328P chips, altough the code itself was OK
• fixed: entering an incorrect EBI base address resulted in an endless error message, without the possibility to correct it

Programmer

• corrected the chip signature for the ATmega88A chip

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Op-amp Komparator

Konfigurasi open-loop pada Op Amp dapat difungsikan sebagai komparator. Jika kedua input pada Op Amp pada kondisi open-loop, maka Op Amp akan membandingkan kedua saluran input tersebut. Hasil komparasi dua tegangan pada saluran masukan akan menghasilkan tegangan saturasi positif (+Vsat) atau saturasi negatif (-Vsat).

Sebuah rangkaian komparator akan membandingkan isyarat tegangan yang masuk pada satu saluran input dengan tegangan pada saluran input lain, yang disebut tegangan referensi. Tegangan output berupa isyarat tegangan high atau low sesuai dengan besar isyarat tegangan masukan yang lebih tinggi.

Besar isyarat tegangan keluaran dari komparator tidak bersifat linier secara proporsional terhadap besar tegangan input. Terdapat dua macam komparator, antara lain :

1.  Komparator Tak-Membalik (Non-Inverting Comparator)
2.  Komparator Membalik (Inverting Comparator)

Materi selengkapnya silakan diunduh di sini

ABU ROBOCON 2012

 In our game, robots will be the bun-snatchers. They will travel through the Tunnel, cross the Bridge and land the Island where the Bun Tower locates. They have to snatch the “Peng On Bun” in order to achieve “Peng On Dai Gat” .Who will be the winner of the ABU Asia-Pacific Robot Contest 2012 after a great “journey” in Hong Kong? Let’s see!

 Hong Kong will be the host city of the 11th ABU Robot Contest in 2012. By then, students from the Asia-Pacific region will gather in Hong Kong, directing robots to cross Bridges and Tunnels, land the Island, climb the Bun Tower, snatch the lucky Buns and achieve “Peng On Dai Gat”. Who will be the winner of the ABU Asia-Pacific Robot Contest 2012 after a great “journey” in Hong Kong? Let’s see!
Hong Kong is hilly with a rich landscape that includes over 200 islands, leading to a particularly strong need of bridges and tunnels. Among these we have the Cross Harbour Tunnel linking up Kowloon and Hong Kong Island across Victoria Harbour, while the Tsing Ma Bridge is the world’s longest road-and-rail suspension bridge that brings Lantau Island closer to us. Thanks to these bridges and tunnels, Hong Kong now boasts a well-developed traffic network.