The mighty 1284p bootloader

Other Hardware 3rd Party Boards
1

ok yet another bootloader question, been using the 328 for some time more pins needed,

im useing Nick Gammons tutorial for he bootloader, ive installed all the files, trying to install the bootloader but guess what, doesnt work get the not in sysn error

not sure what to select in the Programmer?, im pretty sure its the Arduino as ISP, is this correct? ive tryed all selection, ive checked the connections 5+ times

my connections are as follows, i have my 1284 aet up as the usual bare board config

Programming Uno Target board

D10 (SS) Reset - pin 9 (green)
D11 (MOSI) Pin 6 (yellow)
D12 (MISO) Pin 7 (orange)
D13 (SCK) Pin 8 (black)

thank you

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2

Can you post a link to Nick's tutorial and also the exact message you are getting?

3

here is the tutorial

this is the error when selecting parallel programming,

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4

Did the chip detector portion of the tutorial work ok?

5

i havnt tried that will give it a go 2 mins

6

If you are using Nick's http://gammon.com.au/Arduino/Atmega_Board_Programmer.zip then this sketch is self-contained. To run it you need open the Serial Monitor window at 115200 baud.

7

hiduino:
If you are using Nick's http://gammon.com.au/Arduino/Atmega_Board_Programmer.zip then this sketch is self-contained. To run it you need open the Serial Monitor window at 115200 baud.

Of course.... I overlooked that part. Using Nick's sketch, he doesn't select a programmer at all. All commands are done via the serial port.

8

ok i ran that and got this, message and hit to load the bootloader looks like it installed it am i right?

cheers

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9

Yes, hit G and it will upload the correct bootloader. Be aware that this is going to set your fuses for an external clock. So you will need to use an external clock after you disconnect this setup and try to use it on it's own.

10

Too late. You already did it. lol

Yes, it looks like it worked.

11

great thanks very much for everybodys help, and on a Saturday night fantastic,

12

i see it has a atmega168 bootloader, will that burn a atmega168, 20pu chip?

thanks

13

Not sure. From the datasheet, it would appear that the device signatures for the 168PA and PU are the same. If you try to run it at 20Mhz with the normal bootloader, some of your timing may be off. Certainly the timers will be off in your arduino code. The cores are designed for 8 and 16 only. So it will work, but you may run into strange problems.