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Can't reach maximum value con ADC when using Vcc as external reference. [ATmega128RFA1] Is there some gotcha or something? I can't seem to reach the maximum value of 10 bits when using Vcc as external reference. The microcontroller is powered with 3.3V power... |
Friday, 11 December 2020 - 20:17 |
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[ATmega128RFA1] High deep-sleep currnet consumption? Hi everyone, I've been making a prototype based on a MEGA128RFA1 ('built-in' radio) and the last prototype worked fine on current consumption. That one used a ceramic antenna, a... |
Monday, 9 November 2015 - 12:41 |
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ATmega128RFA1, RTC crystal won't start. [EDIT: Old title "ATmega128RFA1 won't wake from deep-sleep using SymbolCounter."] Ok, I'm totally confused. I'm using ATmega128RFA1 as a microcontroller, sending it to deep... |
Tuesday, 9 June 2015 - 21:18 |
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Is there a known effect in microcontrollers for working a 'little' beyond the absolute maximum voltage as power supply? Yes, the question is a little too wide. right now I'm using an ATmega128RFA1 microcontroller whose power supply is rated to be 3.6V max. I did some test with some boards... |
Friday, 10 October 2014 - 13:59 |
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Another one with trouble doing shifting in 32bit variable. My question is either How to make it work or Why doesn't it work. My code: uint32_t Lmin, Lmax, Vmin; while(1){ Lmax = (2UL<<16UL) | (0xAA<<8) | 0xA8... |
Thursday, 14 August 2014 - 15:54 |
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[ATmega128RFA1] How to maximize wireless range? I've been designing a prototipe with an ATmega128RFA1 chip and in the latest wireless communication tests I've done I'm able to separate two nodes between 4 to 8 meters before... |
Monday, 14 July 2014 - 17:41 |
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[SOLVED] Help ADXL001, output not changing UPDATE: Forget it, I was doing the most stupid thing, was measuring it when fliping in the none-sensing axis. And I'm stuck again. I have a bunch of ADXL001 acelerometers which I... |
Thursday, 3 July 2014 - 15:40 |
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¿AVR MKII ISP triggering the short circuit protection? I've got myself a new PCB with a ATmega128RFA1 and managed to program the µc a couple of times, but now for some reason I cant get to read the device signature. I'm using an AVR... |
Monday, 23 June 2014 - 20:44 |
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[ATmega128RFA1] What's the symbol counter clock? I want to put the mcu to deep-sleep and then wake it up some time later. The datasheet says the clock source can be the RTC crystal, which is 32.768kHz, so I would expect that the... |
Friday, 23 May 2014 - 16:46 |
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ATmega128RFA1 - Max ADC Voltage Input? According to the datasheet and this post, for single ended input, the maximum voltage reference is AVDD which is internally generated to ~1.8V My problem is that I want to measure... |
Tuesday, 13 May 2014 - 15:05 |
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Supercapacitor disconnected by software? Possible & Usef Hi all, I recently got an idea/problem concerning the use of supercapacitor and battery. I have a system wich will be powered by a high capacity battery. Its capacity is dependent... |
Monday, 12 May 2014 - 18:49 |
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[ATmega128RFA1] PinChange Interrupt not working [SOLVED] Ok, so I've been trying to make this interrupt work on a ATmega128RFA1 without success. I'm using PORT B4 and B5, which are PCINT4 and PCINT5 respectively. I have enabled the PC... |
Wednesday, 5 February 2014 - 21:58 |