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Some pin usage questions Hi, Got the below questions that I really want to be clarified on. 1. If I have a pull-up on a pin. Is it possible still using that pin for OUTPUT? For INPUT, that's no problem... |
Sunday, 1 May 2011 - 05:17 |
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Question on mix voltages of 3.3V and 5.0V Hi, Consider the schematic at http://www.ikalogic.com/scanalog... 1. The 23K256 ICs take 3.3V for their VCC and GND pins. They are SPI slaves. The ATMEGA takes 5V. The MOSI and... |
Friday, 29 April 2011 - 06:33 |
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Optimizing a small assembly routine to do a lookup Hi, First time with AVR Assembly Language. Read the awesome tutorial by Gerhard Schmidt at http://www.avr-asm-tutorial.net . Objective: Given a byte, do two lookups using each... |
Wednesday, 6 April 2011 - 17:15 |
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Any cheap stereo audio power amplifier? Hi, I see that the TP150 or its derivatives are good candidates. See http://focus.ti.com/lit/ds/symli... . But, they are expensive. Is there is a cheaper alternative, e.g., with... |
Thursday, 24 March 2011 - 22:57 |
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Sample AT32UC3L064 project with wiring, e.g, a dev board Hi, Just bought a couple pieces of AT32UC3L064. Looking for a sample AT32UC3L064 projects or dev board. Thanks! |
Tuesday, 22 March 2011 - 04:23 |
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Getting exact number of cycles per sec or usec of a uC Hi, I am reading http://www.atmel.com/dyn/resourc... . Well, more like browsing, since it 800+ pages long. So, from page 783, max F_CPU is 50Mhz. Exactly how many cycles, say,... |
Monday, 21 March 2011 - 19:51 |
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Adjustable voltage regulator (TC1174 device) questions Hi, I am planning to use the TC1174 to regulate a 5V down to 3.6V. Please see the attached schematic. Vin = 5V and max. 500mA can ne drawn from this Vin. Vout = 3.6V and max... |
Monday, 14 March 2011 - 01:17 |
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Please comment on the attached design/wiring Hi, I am designing an adapter for an SMD part, that is, SMD to PDIP adapter. This part has a lot of VCC and GND pins. So, decouple these sets of VCC and GND pins with 0.1uF... |
Saturday, 5 March 2011 - 17:21 |
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Need bitmap routines for graphics LCD Hi, I found graphics routines for LCDs (not specific to any LCD). But I am also looking for bitmap routines, such as drawing bitmaps with clipping abilities. Any pointer would be... |
Tuesday, 1 March 2011 - 06:09 |
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USB to RCA (Yellow/Red/White) cable question Hi, Nowadays when you buy a digital camera, they give you a USB-to-RCA cable so that you can view the pictures on your TV. See attached image. I am thinking of doing a TV project... |
Monday, 28 February 2011 - 02:09 |
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2-bit video DAC questions Hi all, I read the document http://instruct1.cit.cornell.edu... on how generate TV images (on NTSC TVs) using a 2-bit DAC controlled by the ATMEGA644. Please see the attached... |
Sunday, 20 February 2011 - 05:05 |
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Suggestion of an IC for interfacing with HDTV/digital TV? Hi, So, Analog has the AD723/AD725 ICs, which are NTSC and PAL encoders, for analog TVs. Now the world has gone viral with digital TVs. Are there any corresponding ICs like the... |
Friday, 11 February 2011 - 18:08 |