Type in the full discussion title or a part of it.
Discussion Title Created date
New Mega0 tool
  I got really frustrated trying to assign pins for Mega4808/9. Less so with their smaller pin count compatriots. The ability to move (most) signals around made it far ...
Monday, 3 January 2022 - 21:46
Megsa4809 - Hobson's Choice
Its that old design conundrum, translated for the 48-pin Mega4890.   1. External 32.768 KHz crystal 2. Active /RESET 3. USART2 in SPI mode   You can have any two but not...
Tuesday, 28 December 2021 - 23:38
What Drives Optiboot? (M4809)
I've searched through Optiboot threads here at Freaks and I've looked through the GitHub repository, without success.   Here is the situation. Suppose that I actually sell...
Tuesday, 28 December 2021 - 06:37
Mega4809 Package Puzzle ?
Greetings Freaks -0   I've just been reviewing the physical package information for the ATmegs4809. I am hoping to lay out a smaller SMT footprint inside a larger SMT...
Tuesday, 28 December 2021 - 06:24
Mega4809 & Bootloader ?
Greetings, Freaks -   Getting close to the "end" of system design on the upgrade of my accelerometer. Bootloader is one of the last pieces. I HAVE read the excellent threads...
Thursday, 16 December 2021 - 18:53
Do Not Understand This Programming Style!
Greetings -   I was just reviewing Microchip's twi library originally written, I think (but possibly not), for Arduino. twi.h contains several struct definitions like...
Wednesday, 24 November 2021 - 03:06
Synchronization of production hex/elf files?
For those of you who in places that do their own programming in your "shop", how do you keep the programming hex/elf files synchronized with the current "release" from engineering...
Saturday, 20 November 2021 - 02:20
Mega4809 Interrupts - a cautionary tale
Greetings Freaks -   This is yet another installment on the challenge of creating a gated tone burst to drive a beeper. Almost all of my AVR experience has been with Mega328...
Friday, 12 November 2021 - 18:07
Gated (Burst) PWM on M4809
Greetings Freaks -   This is yet another stab at creating a burst PWM signal to drive an electromagnetic buzzer. Earlier efforts were focussed on putting as much of this...
Thursday, 11 November 2021 - 19:40
AVR128DAxx clock rate?
Greetings Freaks--   Right now, I am looking at a just-downloaded copy of the AVR128DAxx devices spec sheet ( DS40002183C ). One thing that is pretty obvious is that there is...
Monday, 8 November 2021 - 20:29
Mega328P/PB Stocks Nov 2021
Wow - Just looked at DigiKey and Mouser and MicrochipDirect.   None of three has stock on the Mega328PB or Mega328P. DigiKey and Mouser have no forecast on delivery...
Sunday, 7 November 2021 - 20:16
Troubleshooting ATmega0 CCL?
Greets Freaks!   Making my first try at using M4809 CCL. At first, it did not work, then I found a really stupid error (logic analyzer connected to wrong MCU pin - duhhh)....
Tuesday, 2 November 2021 - 22:34

Pages