Difference between revisions of "Initializing the Microcontroller"
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Tools needed for programming the Power-Failure-Logger: | Tools needed for programming the Power-Failure-Logger: | ||
| − | + | '''USBTiny''' or '''USBasp''' Programmer (refer to '''AVRDude Class''' for more information on Programmers) | |
Any '''RS232 to USB''' interface. I used the Silicon Labs Prolific CP210x USB to UART Bridge. | Any '''RS232 to USB''' interface. I used the Silicon Labs Prolific CP210x USB to UART Bridge. | ||
Digital volt meter | Digital volt meter | ||
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'''Setting up the ATMega328 chip''' | '''Setting up the ATMega328 chip''' | ||
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For more information about using AVRDude refer back to this link | For more information about using AVRDude refer back to this link | ||
==[[ AVRDUDE Class]]== | ==[[ AVRDUDE Class]]== | ||
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| + | Plug '''SD Card''' into '''J6 connector''' on Power Failure Logger board. | ||
Next step '''Setting up the DS3231 RTC''' | Next step '''Setting up the DS3231 RTC''' | ||
Revision as of 02:13, 29 July 2021
Tools needed for programming the Power-Failure-Logger:
USBTiny or USBasp Programmer (refer to AVRDude Class for more information on Programmers) Any RS232 to USB interface. I used the Silicon Labs Prolific CP210x USB to UART Bridge. Digital volt meter
Setting up the ATMega328 chip
Unplug any USB Power before programming the Microcontroller. Plug the USBTiny Programmer into the AVR-ISP 6 pin header J7. Place the jumper across J8 to use the USBTiny 5 volt power. Make sure no other power source is connected! Using AVRDUDE Validate the USBTiny is communicating with the Power Fail Module Microcontroller avrdude -c usbtiny -p m328p -v Trouble shooting any connection issues to the microcontroller refer back to the AVRDude Class. The link is below. The Microcontroller is set to 1HMz and needs to be changed to 16 MHz Default Using AVRDude enter the follow command to set the fuse bits on the Microcontroller. avrdude -p m328p -c usbtiny -v -U lfuse:w:0xFF:m -U hfuse:w:0xDE:m -U efuse:w:0xFF:m When completed make sure the microcontroller matches these settings: avrdude: safemode: hfuse reads as DE avrdude: safemode: efuse reads as FF avrdude: safemode: Fuses OK (E:FF, H:DE, L:FF) avrdude done. Thank you. For more information about using AVRDude refer back to this link ==AVRDUDE Class== Plug SD Card into J6 connector on Power Failure Logger board.
Next step Setting up the DS3231 RTC
