i had not mentioned it, but i've build it from scratch (from your open source PCB designs, thank you very much!). it had not been running before with the older firmware. i have not even thought of the fuse settings (don't even know what that exactly is), but i understand the concept of overclocking.
anyway, before i had tried what you described above, i had briefly plugged the module into the power supply and nothing besides a few LEDs lit up dimly.
after that, i tried flashing the fuse-setting code. strangely, the port name has changed overnight and is now usbmodem1421, but that is because i had now plugged the usb into the second port on the comp
. for the documentation sake and hoping that this might others (as clueless as me, if they exist here) here's the commands i used:
Code: Select all
/Users/granolagreul/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/bin/avrdude -C/Users/granolagreul/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf -v -patmega328p -carduino -P/dev/cu.usbmodem1421 -b115200 -D -Ulfuse:w:0xFF:m -U hfuse:w:0xDE:m -U efuse:w:0x05:m
the response of avrdude came back as follows and i am not sure if that is good or the usual, does sound not right:
Code: Select all
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/Users/granolagreul/Library/Arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf"
User configuration file is "/Users/granolagreul/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/cu.usbmodem1421
Using Programmer : arduino
Overriding Baud Rate : 115200
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: safemode: lfuse reads as 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode: efuse reads as 0
avrdude: reading input file "0xFF"
avrdude: writing lfuse (1 bytes):
Writing | | 0% 0.00s ***failed;
Writing | ################################################## | 100% 0.06s
avrdude: 1 bytes of lfuse written
avrdude: verifying lfuse memory against 0xFF:
avrdude: load data lfuse data from input file 0xFF:
avrdude: input file 0xFF contains 1 bytes
avrdude: reading on-chip lfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0x00 != 0xff
avrdude: verification error; content mismatch
avrdude: safemode: lfuse reads as 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode: efuse reads as 0
avrdude: safemode: lfuse changed! Was ff, and is now 0
Would you like this fuse to be changed back? [y/n] n
avrdude: safemode: Fuses OK (E:00, H:00, L:FF)
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0xfe
avrdude done. Thank you.
AND, then i remembered that i still have not checked in if the IC that i had soldered instead of the W25Q80DVSNU104 would need to be replaced or not (have totally forgotten, that the seller has send me 25Q128F7861510 in a package of W25Q80DVSNU104, so they ended up on the board.) AND even worse. i just now realized that the voltage regulator got really hot just from the ISP connection and it turned out i have soldered a L7905 instead of a L7805
so i really hope i have not fried anything by that. will fix that first, most likely see you in the hardware department.
anyway many thanks for your detailed and kind help. much appreciated.
