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SPI Shift Register ?
Greetings Freaks -   Yes, I know that SPI is "just a shift register". And, for serial in, parallel out, you can use almost everything that is out there.   Not quite as...
Saturday, 30 May 2020 - 20:00
Mega4809 and CRC
Greets Freaks!   I see that Mega4809 (and several other Mega and Tiny chips) have a "CRC Module". It appears that this peripheral is only for use in generating a CRC for the...
Thursday, 28 May 2020 - 07:39
Timekeeping - High Level ?
Greetings Freaks -   This is a question about high level "issues" of time keeping. I am not talking about how time "ticks" are generated or about how those ticks are...
Sunday, 24 May 2020 - 17:48
AVR & IrDA
Just noticed that the Mega4809 has an IrDA mode for the USART.    The first puzzle is whether or not all of the Mega4809 USARTs have IrDA capability. There is...
Thursday, 14 May 2020 - 15:37
Dual Use (SRAM / FLASH) pointer?
Greetings -   Just starting to deal with Mega4809 uarts. I would like to be able to specify a string in flash or in sram and just tell the uart, "Here is the pointer....
Monday, 11 May 2020 - 06:03
Handling Multiple Similar Internal Peripherals?
Greetings Freaks -   The immediate context for this question is Mega4809 but it probably applies equally to other devices with multiple copies of the "same" peripheral, such...
Wednesday, 22 April 2020 - 18:16
Envelope Detection
Greetings Freaks -   I don't have an instantaneous application for this, so it is more "academic" than practical. But, I CAN see a potential  application in my...
Saturday, 18 April 2020 - 06:54
Functional Safety?
In the context of product design and,  in particular, program design, what is generally meant by "Functional Safety"?    I see a bunch of standards ( IEC ? )( and...
Friday, 17 April 2020 - 22:57
Interrupt names for ATmega4809? [SOLVED]
Help, Freaks!   I've looked in the device-specific data sheet, I've looked in the Mega-0 data sheet. I've looked in the Microchip AVR LibC documentation. Zilch! Found a...
Tuesday, 31 March 2020 - 00:12
Mega-0 SPI /SS confusion and Xplained Pro question
Greetings Freaks!   Trying to read the documentation to understand how to manage SPI for ATmega4809. Most is reasonably reasonable, given the relative simplicity of SPI....
Sunday, 29 March 2020 - 19:14
Reading TMP117 with ATmega4809 [solved]
Greetings, folks -   Actually, the title is a bit of a smokescreen!   TMP117 is a pretty nice TI temperature sensor with 0.1C accuracy and 7.825 mC resolution. Value...
Friday, 27 March 2020 - 19:15
SPI and optimization?
Greetings freaks -   This is really a mixed question about optimization and AVR SPI operation.   Environment: AS7 in Windows 10, ATmega328P   I use the SPIF bit in...
Saturday, 7 March 2020 - 18:16

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