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FM24C64 I2C Data is not what was written
Thank's to all who helped Japael hit the nail on the head, they must have been swapped (I had disconnected them last night) When I reconnected and ran the code I had I could see...
Monday, 11 September 2006 - 23:55
atmega128, external crystal oscillator don't work anymore
Without knowing what external clock fuse is set you may have to try different clocks on the XTAL1. i did not look at the datasheet check to see the frequency ranges of the fuse...
Monday, 11 September 2006 - 17:51
FM24C64 I2C Data is not what was written
Quote: it pulls SDA low as soon as SCL goes low for the 8th time, The datasheet table shows the maximum time after the SCL goes low for the ACK to pull SDA low is 3us (tAA) I don'...
Monday, 11 September 2006 - 17:09
FM24C64 I2C Data is not what was written
Hey, that may be it MegaJSBFreak, When I gave up last night and switched to program SPI code for some EEproms I had (first time played with these) I noticed on the read cycle the...
Monday, 11 September 2006 - 16:12
FM24C64 I2C Data is not what was written
I will as you say check all connections again voltage to chip as well. I was going to order some I2C eeproms just to see if it is a problem with the FRAM chip. Yes, after checking...
Monday, 11 September 2006 - 15:52
FM24C64 I2C Data is not what was written
I will re check SDA and SCL connections I had double and triple checked them allready when I hooked up the scope probes but I will look again. Yes I see counting from zero for...
Monday, 11 September 2006 - 14:47
FM24C64 I2C Data is not what was written
Yes , both SDA and SCL toggle between input and output via DDRB. The pullup resistors are pulling it high when it goes to input the avr sinks the current via toggeling to output (...
Monday, 11 September 2006 - 07:13
How do you do Motor operations with AVR?? (NEWBIE Q!)
Are you new to both electronics hardware and software? Do you have any programmers for atmel chips or any other microcontroller? If no to all, perhaps a read through of some of...
Sunday, 27 August 2006 - 15:28
Accuracy of instruction timings
OOPS sorry about that, The macros HIGH0 and LOW0 are CBI and SBI instructions. another OOPS, when I read the help file for instruction timing of the CBI instruction I did not...
Saturday, 26 August 2006 - 16:43
Accuracy of instruction timings
Here is a timing loop I made to give me 31250 baud rate clock. Upper right shows 1MHZ top line, bottom is 15.625KHZ times 2 is 31250 transitioins this is on the tiny45 interrupts...
Saturday, 26 August 2006 - 14:55
Why is this code in simulator not working
The processors will all be on one board connected with traces so no long wires. Communication is a simple Hold one line low from the master, the slaves (tiny13's) respond with...
Tuesday, 22 August 2006 - 17:30
Multithreaded code on tiny13
I found this document http://pdfserv.maxim-ic.com/en/a... so I can better understand how to do the 1 wire communication, that aside I am interested in learning more about the...
Friday, 4 August 2006 - 17:42

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