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TinyDuino Processors & TinyShields / Cannot reprogram my Tinyduino
« on: April 20, 2016, 05:13:41 PM »
I'm new to Arduinos in all forms, though I have a lot of experience with PIC uCs from years of developing embedded systems.
I bought a Tinyduino processor board, SD card shield, GPS shield and USB shield, stacking them up in that order.
I'm programming on a Mac. First off, I found I had to use Arduino 1.6.5 because newer versions did not seem to detect the board when I plugged it in via USB.
My first sketch (perhaps foolishly) was not one of the examples but one that I wrote myself. It was supposed to create a couple of files on the SD card,
then loop forever pinging 'A' to the hardware serial device and expecting a series of 22 bytes in return, which it would then dump to a file on the SD card.
I formatted a 2GB Sandisk SD Card using the recommended formatter.
The sketch uploaded OK and ran, and when I opened the serial monitor, I saw 'A's being streamed to the PC.
After powering it off and putting the SD card in my Mac, I found there were no files on the card.
That was last night and I had to stop at that point.
Today I made some code edits to add diagnostics to the card initialisation, but now when I try to upload the modified sketch, nothing much happens.
On the USB shield, the orange TX light is flickering continuously, but never the RX light.
After about 10-15 minutes the log messages in the editor window show:
Sketch uses 11,488 bytes (37%) of program storage space. Maximum is 30,720 bytes.
Global variables use 1,364 bytes (66%) of dynamic memory, leaving 684 bytes for local variables. Maximum is 2,048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x41
Hmm.... 0x41 == 'A'. So I open up the serial monitor and my original program still seems to be running, pumping out 'A' continuously.
I have also tried building and uploading the SD card info example sketch, but that also fails to upload.
So, does anyone know why the new sketch won't upload?
I have overwritten the original sketch but am happy to share the latest version if it is relevant (some significant edits mean that it's not too similar to the version I did upload though).
Many thanks.
I bought a Tinyduino processor board, SD card shield, GPS shield and USB shield, stacking them up in that order.
I'm programming on a Mac. First off, I found I had to use Arduino 1.6.5 because newer versions did not seem to detect the board when I plugged it in via USB.
My first sketch (perhaps foolishly) was not one of the examples but one that I wrote myself. It was supposed to create a couple of files on the SD card,
then loop forever pinging 'A' to the hardware serial device and expecting a series of 22 bytes in return, which it would then dump to a file on the SD card.
I formatted a 2GB Sandisk SD Card using the recommended formatter.
The sketch uploaded OK and ran, and when I opened the serial monitor, I saw 'A's being streamed to the PC.
After powering it off and putting the SD card in my Mac, I found there were no files on the card.
That was last night and I had to stop at that point.
Today I made some code edits to add diagnostics to the card initialisation, but now when I try to upload the modified sketch, nothing much happens.
On the USB shield, the orange TX light is flickering continuously, but never the RX light.
After about 10-15 minutes the log messages in the editor window show:
Sketch uses 11,488 bytes (37%) of program storage space. Maximum is 30,720 bytes.
Global variables use 1,364 bytes (66%) of dynamic memory, leaving 684 bytes for local variables. Maximum is 2,048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xe0
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x41
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x41
Hmm.... 0x41 == 'A'. So I open up the serial monitor and my original program still seems to be running, pumping out 'A' continuously.
I have also tried building and uploading the SD card info example sketch, but that also fails to upload.
So, does anyone know why the new sketch won't upload?
I have overwritten the original sketch but am happy to share the latest version if it is relevant (some significant edits mean that it's not too similar to the version I did upload though).
Many thanks.