Post Created date
SPI To Parallel .
Have you considered using another AVR device as your serial to parallel converter ? If the clock rate isn't too high, you can do it in software with any AVR device. If the SPI...
Friday, 23 July 2004 - 01:07
spi communication
An SPI is synchronous communications (clocked). If you are trying to connect something to a "PC", it is probably asynchronous (RS-232). This is NOT compatable with an SPI...
Wednesday, 21 July 2004 - 23:01
AVR vs the Rest
As alway, use the right tool for the right job. AVR structure is great for for a lot of jobs, but the product offering today does not include a chip that was specifically designed...
Wednesday, 21 July 2004 - 13:25
PCB Software
If your boards come more complex (and they always do) you may want to consider using a cheap board house. Barebones PCB will build a double sided pcb, with plated holes and vias,...
Wednesday, 21 July 2004 - 01:48
supply voltage during sleep mode
A valid supply voltage must be maintained even in sleep mode - or - at least above the Brown Out detection level. If you can tolerate the speed penality, you should consider using...
Tuesday, 20 July 2004 - 13:25
Any small package AVR with 4k Flash ?
How about an ATTINY26, ATMEGA48,88,168 ? All of these are available in a NLF32 package (32 pin, 5x5mm)
Thursday, 15 July 2004 - 03:01
Any small package AVR with 4k Flash ?
How about an ATTINY26, ATMEGA48,88,168 ? All of these are available in a NLF32 package (32 pin, 5x5mm)
Thursday, 15 July 2004 - 03:01
Confusion re Tiny 15 and osccal
The problem is that the OSCCAL value resides in the signature address space. This area of memory is not accessable in user mode. It can only be accessed when the processor is in...
Monday, 12 July 2004 - 21:34
spi transmission problem
If all of your data has been received, but it shifted by a bit, then it could be a clock polarity or phase problem. Make sure that the master (transmitter) and slave (receiver)...
Monday, 12 July 2004 - 02:16
spi transmission problem
What else is the receiving uP doing ? Are there other interrupts running ? Does the sending uP add any delay between the SPI bytes sent ? It is likely that the receiving uP is...
Saturday, 10 July 2004 - 15:48
Desperate: Need to implement software UART on ATmega16L
I have attached a document which should get you started in the right direction. A software UART is all about timing and state detection. Here are some states and conditions that...
Friday, 9 July 2004 - 04:10
Want to be loved.
Rose, Searching for love among the "Freaks" reminds me of a line from a song - "Looking for love in all the wrong places".
Friday, 9 July 2004 - 03:00

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