ugh....so ive tried just about all the tricks ive read about....ive tried different board types, different programming methods....even going to the RXD1 & TXD1 pins to see if those would work...nada
to recap:
bootloaded the 1284 using the Atmega Board Programmer sketch and my Uno Rev 3...had to change one of the sig bytes but got it to give me a successful bootload
i used the USB FTDI TTL-232R 3.3V cable i picked up from adafruit that i use to upload sketches to my boardinos with and connected via male header in breadboard to these pins:
Pin 1 (GND) Gnd (blue)
Pin 2 (CTS) not connected
Pin 3 (Vcc) +5V (red)
Pin 4 (TxD Pin 14 (RxD0) (white)
Pin 5 (RxD) Pin 15 (TxD0) (orange)
Pin 6 (RTS) To Reset via 0.1 uF capacitor (green)
i then installed the maniacbug-mighty-1284p download and selected the "Mighty 1284p 16MHz using Optiboot) board in the tools menu
this allows me to upload sketches up to around 20-25kb and then i get the following error messages:
avrdude: stk500_paged_write(): (a) protocol error, expect=0x14, resp=0x62
avrdude: stk500_cmd(): programmer is out of sync
ive since tried:
including LEDs on the RXD0 & TXD0 pins...nada
swapping to the XD1 pins...nada
selecting other boards in the tools menu....nada
installing a 10k ohm and .1 uF cap as a low pass filter on the RXD0 pin (cap from pin to ground, resistor in series to cable)
looking up the devcode for stk500 in the avrdude config file...its the same for all the similar ATMega chips
taking my 328p chip from my Uno, selecting the Arduino as ISP in the programmer menu under tools and then upload using programmer in the file menu
im clearly a noob at all this...but i thought i would be able to get this thing singing and can only make it grunt
the reason i went to the 1284 chip was more sketch space...my bad that i didnt pick up the 1284p chip but from what ive been learning, this isn't the real issue....its an atmega 1284(p) DIP issue...which bites
is there a solution that does exist? keep in mind, im not that talented, im very busy, and extremely lazy
any and all insight is welcomed!!!
THANKS!!
ps....i think the 64kb would be ok for my current projects...i just thought id be a little greedy with the 1284kb seeing how the chip cost is pretty close....should i just go with the 644p? are there known issues there too? i just need some space...
double PS...im using a 16 MHz crystal (digikey P/N X433-ND) if that means anything to the "out of sync" portion to the error code