The 5v of power should be sufficient from the programmer board to power the target board. In addition, the Arduino tutorial referenced above has instructions to use pins 7, 8, and 9 as indicators of the burning process if you’re interested, but I won’t go into them here. Since five of these wires are straight through, you might use a six pin connector and simply cut pin 5 and solder on a jumper. The reset pin of the target Mega 2560 must be wired to pin 10 of the programmer Mega 2560. You can simply wire jumpers from board to board using these pins with a single exception. The pins are laid out as follows: The ICSP pin configuration. Note the white mark in the upper left corner marking pin 1. This is a 2 x 3 group of pins next to the processor. The Mega 2560 enlarged to show detail of ICSP headers and the white dot marking pin 1 in the upper left corner.įirst, have a look at your Mega 2560 and find the ICSP pins. Note there are similar six pins near the USB, but these are not used in this process. The ICSP Pins A Mega 2560 board with the ICSP headers highlighted in orange. You can either do this with six wire jumpers or a standard six pin cable and a little surgery. This tutorial will show you how to use another Mega 2560 to replace the boot loader of a Mega 2560. The first step in replacing the boot loader on an Arduino board is having an In System Programmer (ISP). User configuration file is "/Users/nick/.This is the first step in the series Code Loading an Arduino over Bluetooth. System wide configuration file is "/usr/local/CrossPack-AVR-20100115/etc/nf" Got response: avrdude: Version 5.8cvs, compiled on at 17:27:01 Sent command: avrdude -c arduino -p t85 -vvvv -P /dev/tty.usbmodemfd141 -b 19200 Loaded ArduinoISP from Examples in the 1.0 Version of the IDE. Other components not connected (from earlier test). Green: Attiny85 pin 1 (/RESET) to Mega pin 53 White: Attiny85 pin 6 (MISO) to Mega pin 50 Orange: Attiny85 pin 5 (MOSI) to Mega pin 51 I had an Attiny85 to hand, not an Attiny45 - but it's the same datasheet. Over and over again (roughly 30 times), until it eventually spits out initialization failed, rc=-1 and gives up. The section above merely repeats avrdude: Send: 0 ĭouble check connections and try again, or use -F to override Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBackĮeprom 65 6 4 0 no 256 4 0 4000 4500 0xff 0xff System wide configuration file is "C:\Program Files (x86)\arduino-1.0\hardware/tools/avr/etc/nf" Here is the output with it set to verbose: Binary sketch size: 756 bytes (of a 4096 byte maximum)Ĭ:\Program Files (x86)\arduino-1.0\hardware/tools/avr/bin/avrdude -CC:\Program Files (x86)\arduino-1.0\hardware/tools/avr/etc/nf -v -v -v -v -pattiny45 -cstk500v1 -P\\.\COM3 -b9600 -Uflash:w:C:\Users\Kevin\AppData\Local\Temp\build6208833073255571373.tmp\:iĪvrdude: Version 5.11, compiled on at 19:38:36 I got the exact same error as before, so I suspect the Mega is not even getting to the point of communicating with the ATTiny45. Just to see what would happen, I removed the wires connecting the MOSI and MISO on the Mega2560 with those on the ATTiny45. Here is the initial avrdude output, in case that tells you something: Using Port : \\.\COM3 They pulse twice when ArduinoISP is started (or reset), but do not come on at all during the programming of the ATtiny45. ![]() I just added error and communication LEDs on 8 and 7 respectively. It continues pulsing through the entire process of uploading the script. I have had a heartbeat on Pin 9 the whole time, and it is pulsing fine. But I still get that error when trying to burn a bootloader (i.e., set the clock fuses) on the ATTiny45. Before, the bar above the serial window in the IDE was turning orange and reporting an error, so I am counting this as a small step in the right direction. With this configuration, I still get the message:Īvrdude: stk500_initialize(): programmer not in sync, resp=0x15ĭespite this error, the IDE says that it has finished uploading. ![]() I have now added a 110ohm resistor between +5V and RESET and a 10uF capacitor between RESET and GND.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |