search

MCUdude / MightyCore

Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535
Other
649 stars 182 forks source link

Atmega1284P restarting when execute optiboot_writePage #196

Closed castrofernando closed 3 years ago

castrofernando commented 3 years ago

My board restarts everytime i try to call the function optiboot_writePage. To do some tests, i just upload the SerialReadWrite.ino from example folder and same issue happens.

Can anyone give me some tip?

Tks

MCUdude commented 3 years ago

It is a while since I've tried this example, so I grabbed my DIP-40 board, inserted an ATmega1284P in it, flashed a 16 MHz bootloader, and loaded the example.

Everything works fine here. The microcontroller doesn't reset, and the written content is preserved through a power cycle. You are using a bootloader, right?

castrofernando commented 3 years ago

Actually, maybe this should be my mistake.I also tried ArduinoOTA, that also use same optiboot and got same problem when write. I'm didn't using bootloader, i'm flashing the example directly using ISP with USBasp. Do you have any other recomendation? I'm using 3v3 power supply and 16Mhz, flashing using AVRDudes 2.13

castrofernando commented 3 years ago

Thank you @MCUdude! the problem was i'm not using bootloader. Now i was able to flash the bootloader correctly and worked perfectly. Thank you again!