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Can't access ATmega165A via JTAGICE MKII / 3 Hello, I'm having trouble programming/debugging an ATmega165A. Programming via ISP works fine. But programming/debugging via JTAG always failes. I'm having a brand new JTAGICE3... |
Thursday, 6 June 2013 - 12:31 |
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[TUT][HARD]Differential ADC For Monitoring Voltage Window Sometimes an ADC is needed to monitor only a voltage window. For example does the voltage of a 12V Pb-Battery never exceed 14.4V (V_MAX) and should never go below 10.5V (V_MIN).... |
Friday, 14 May 2010 - 11:28 |
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Macro trouble Hi, I'm having trouble getting some macros working properly. I could break down the problem to the following program: #include // Get Bit Defination Of Symbol #define io_bit(... |
Wednesday, 28 April 2010 - 19:18 |
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250mA DC fuse with a wide temperature range Hi all, I need to measure DC current in the range of +/- 250mA and I need some kind of short cut protection. I use an 1 Ohm shunt and measure the voltage drop with the ADC of an... |
Friday, 22 May 2009 - 18:12 |
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Analog Comparator issues (ATtiny24) Hi all, it's been a while ago, but it's nice to be back at avrfreaks.net 8) I need to measure the duty cycle of a PWM signal. The PWM frequency can vary in the range of 100 Hz to... |
Monday, 12 January 2009 - 16:43 |
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Enhancing input capture resolution Hi, I need to monitor the jitter of some short pulses with a length of approximately 500µs. The max. valid jitter is 4µs. I need to do some statistics which are not available... |
Wednesday, 30 July 2008 - 18:44 |
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How can I tell GCC to use STD instead of STS I'm using the standard WinAVR makefile (-Os) and WinAVR20080512. Question 1: I have a small application which uses struct data (located in SRAM) which needs to be reinitialized... |
Wednesday, 2 July 2008 - 20:22 |
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WinAVR20080512 optimizer is too good Hi, I want to use a few global register variables (r2, r3, r4) to implement several timers with a single hardware timer: // System Timer Resolution Unit = ms #define... |
Monday, 9 June 2008 - 17:13 |
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Just another LCD question - 4x20 LCD is driving me crazy Hi, I want to connect one 1x16 LCD, one 4x20 LCD and one D-flip-flop (74HC574) to an ATmega164P. All 3 parts share the same 8-bit data port (PORTB). I'm already able to send data... |
Monday, 2 June 2008 - 12:46 |
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Need -40 to +125 °C control cable I need to connect some SMD sized sensors (5x7.5mm) via control cable to an AVR. The sensors (humidity and temperature) will be used for climate tests. They are designed to operate... |
Monday, 25 February 2008 - 20:07 |
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Need galvanic isolation I have to build a device that can measure current among other things. For current measurement I need galvanic isolation. The complete device shall be supplied by USB. For... |
Friday, 22 February 2008 - 12:22 |
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[MAN][HARD][SOFT] Random Number Generation A very busy semester has passed. One of the reasons why it was so busy was my work on the article Stochastic processes in embedded systems – Random number generation I did this... |
Monday, 4 February 2008 - 12:21 |