Difference between revisions of "ATtiny13"

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I have an ATtiny 13 programmable microprocessor. I wanted to use avrdude, the ATtiny13 and my ft232r chip. I am showing this for SUSE Linux 12.2, but other distributions may be similar:
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This is an example how to upload a program to the ATtiny13 microprocessor so that it will act as autonomeous computing device. An example is [http://www.elektronik-labor.de/Lernpakete/Kalender11/JingleBells.html playing jingle bells].
  
* I installed avrdude's dependencies:
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= What you need =
 +
* an ATtiny13
 +
* an ft232r chip
 +
* SUSE Linux 12.2. Other distributions may work similar, but you are on your own
 +
 
 +
= What you do =
 +
* install avrdude's dependencies:
 
  yast -i bison
 
  yast -i bison
 
  yast -i flex
 
  yast -i flex
* I installed an avrdude update as described here: http://doswa.com/2010/08/24/avrdude-5-10-with-ftdi-bitbang.html
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* install an avrdude update as described here: http://doswa.com/2010/08/24/avrdude-5-10-with-ftdi-bitbang.html
* I inverted the FT232R's Bits as described under [[ftdi]].
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* invert the FT232R's Bits as described under [[ftdi]].
* I connected MISO with RXD, SCK with TXD, MOSI with RTS and RES with DTR, then GND with GND and VCC with VCC. It will look like this:
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* connect MISO with RXD, SCK with TXD, MOSI with RTS and RES with DTR, then GND with GND and VCC with VCC. It will look like this:
 
   
 
   
 
       ------
 
       ------
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       ------
 
       ------
  
* I connected the FTDI chip with the computer
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* connect the FTDI chip with the computer
* I unloaded the ftdi driver:
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* unload the ftdi driver:
 
  rmmod ftdi_sio
 
  rmmod ftdi_sio
 
* I told avrdude to output the first byte
 
* I told avrdude to output the first byte
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Which is basically what I expected.
 
Which is basically what I expected.
 
Wow, look at this:
 
tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -U flash:r:-:h -B 1
 
  
 
and this:
 
and this:
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  tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -e -U flash:r:-:i -B 1
 
  tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -e -U flash:r:-:i -B 1
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 +
= Know-how =
 +
This does not fit into this article any more but I found it out:
 +
Read the flash:
 +
tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -U flash:r:-:h -B 1
  
 
= TroubleShooting =
 
= TroubleShooting =

Revision as of 08:32, 3 January 2013

This is an example how to upload a program to the ATtiny13 microprocessor so that it will act as autonomeous computing device. An example is playing jingle bells.

Contents

What you need

  • an ATtiny13
  • an ft232r chip
  • SUSE Linux 12.2. Other distributions may work similar, but you are on your own

What you do

  • install avrdude's dependencies:
yast -i bison
yast -i flex
      ------
 RTS-|ATtiny|-GND
 RXD-|  13  |-
 TXD-|      |-
 VCC-|     o|-DTR
      ------
  • connect the FTDI chip with the computer
  • unload the ftdi driver:
rmmod ftdi_sio
  • I told avrdude to output the first byte
tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -U hfuse:r:-:h -B 1
avrdude: BitBang OK 
avrdude: pin assign miso 1 sck 0 mosi 2 reset 4
avrdude: drain OK 

ft245r:  bitclk 4800 -> ft baud 2400
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9007
avrdude: current erase-rewrite cycle count is -158 (if being tracked)
avrdude: reading hfuse memory:

Reading | ################################################## | 100% 0.01s

avrdude: writing output file "<stdout>"
0xeb

avrdude: safemode: Fuses OK

avrdude done.  Thank you.

Which is basically what I expected.

and this:

tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -U flash:w:blink2.hex -B 1

Now draw RES and the thing will start blinking :)))

tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -e -U flash:r:-:i -B 1

Know-how

This does not fit into this article any more but I found it out: Read the flash:

tweedleburg:~/at/avrdude-5.10 # ./avrdude -cft232r -pt13 -P/dev/ttyUSB0 -U flash:r:-:h -B 1

TroubleShooting

Symptom
avrdude: /dev/ttyUSB0 open failed 
Solution
Unload the driver blocking /dev/ttyUSB0, in my case:
modprobe -r ftdi_sio

See also