Hello,
I had a handful of custom PCBs built for a stepper motor project that I am working on. It's an ATmega328P-AU TQFP (Arduino bootloader installed) with and L293dd driver on-board. I'm using Arduino as ISP to program. I have a test nano (ICSP pins) that I can successfully upload a sketch to via the UNO. I am unable to upload a sketch to my prototype board. I do have a 10k resistor on the reset pin going to +. I'm wondering if I need a capacitor as well on the reset pin. Looks like a wiring issue judging by the 0's in the error? I've been tinkering with this thing for a while and can't seem to figure it out. Any help is greatly appreciated. Please see the error message and schematic below:
Using Port : COM4
Using Programmer : arduino
Overriding Baud Rate : 19200
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: 2
Firmware Version: 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x000000 (retrying)
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x000000 (retrying)
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
An error occurred while uploading the sketch