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EEPROM data corruption
Although this is an old thread, it is still relevant. Recently, we received compliants about our products failing in the field with a particular customer. Analysis of the failed...
Tuesday, 4 January 2011 - 14:30
PI and windup, what value of saturation [Matlab]
In general, you should have numeric "clamps" on each P, I, and D term, AND on the summation of the terms. The maximum clamping value of each term can be whatever you feel is...
Thursday, 30 December 2010 - 14:52
What would cause atmega168 to lock up after a few days on?
I feel compelled to tell a story from long, long ago on an alarm system that I designed. Once upon a time, I designed an alarm system with a Hitachi clone of a Motorola 6802 micro...
Friday, 24 December 2010 - 04:47
How to hardwire analog signal to ADC pins
Search the internet for a "precision full wave rectifier". In addition, you will need additional amplification and filtering (depends on your control loop response) Just...
Tuesday, 5 October 2010 - 04:23
AVR Network
While implementing a UDP type protocol will be flexible, it may be overkill. In the simplest of master/slave systems (polled), the master would always request data and the slave...
Wednesday, 8 September 2010 - 01:23
AVR Network
Quote:And, BTW, do you know where I can find a practical example of these transceivers connecting two AVRs? Figure 21 of the datasheet shown in the link shows a typical...
Monday, 6 September 2010 - 13:43
AVR Network
I would like to second Mike B's RS-485 suggestion. This is based on not knowing the distances between sensors. If the sensors were very close together (a few inches apart), then...
Sunday, 5 September 2010 - 18:38
The smallest ISP connector
Pogo pins are spring loaded PCB probes that make contact with your DUT (in your case a PCB with AVR). The pogos are inserted into an insulated carrier with a pattern that matches...
Saturday, 4 September 2010 - 13:14
How to save state without energy and without EEPROM ?
One thing is for certain. If you only need to store 1 bit of non-volatile state information, an EEPROM (with wear leveling) or FRAM solution would still be working long after a...
Thursday, 26 August 2010 - 12:32
How to count Clock Cycle of a procedure?
If you need "exact" cycle counts, then a simulator is the best way. But, this is not usually the case. Toggling a port line at the beginning and end of a section of code can be...
Sunday, 22 August 2010 - 12:57
debugWire ATMega48-88-168 = Dead chips?
Quote:Quote: Certainly HV programming mode will recover the part. And what do the fuses read in this condition? Well, I don't know. The vast majority of the parts that have ended...
Saturday, 31 July 2010 - 19:46
debugWire ATMega48-88-168 = Dead chips?
Clawson wrote: Quote:The only "problem" is that Atmel have rather "hidden" the method by which you get back from dW mode to ISP mode (it's actually selectable in the dialog...
Saturday, 31 July 2010 - 14:14

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