User configuration file does not exist or is not a regular file, skipping
User configuration file is "/Users/craigdude/.avrduderc" System wide configuration file is "/usr/local/Cellar/avrdude/6.3/etc/nf"
#ADAFRUIT TRINKET BOOTLOADER SIGNATURE FAIL PRO#
Pololu USB AVR 2 programmer - connected via usb to the FTDI Header of the programmer to the Trinket ProĪdafruit Trinket Pro 3v - supplied external power of 5.2v of power across the Bat+ and GND pins.Ĭrw-rw-rw- 1 root wheel 20, 71 Jun 22 08:28 /dev/cu.usbmodem00186662Ĭrw-rw-rw- 1 root wheel 20, 73 Jun 22 08:27 /dev/cu.usbmodem00186664Ĭommand: $ avrdude -c avrispv2 -p ATmega328P -P /dev/cu.usbmodem00186662 -v -vĪvrdude: Version 6.3, compiled on at 02:19:28 Trinket's got a big sister in town - the Pro Trinket 5V! Downloads | Introducing Pro Trinket | Adafruit Learning System The schematic for the Adafruit Pro 3v is here: Programming Port: /dev/cu.usbmodem00186662 Red light is flashing on programmer approx 1/sec Make sure that the target is powered on and its batteries are not too low (if applicable). Target VCC went outside of the allowed range, so programming was aborted. Any help would be greatly appreciated.Įrror message (on Pololu AVR 2 Programmer Utility): However, when I measure voltage at the Trinket Pro +3v3 pin (which I believe from reading the schematic is VCC for the AtMega328P), I get +3.32v. I’m seeing an error which indicates lack of power at VCC. I have an Adafruit Trinket Pro 3v, which I’m trying to write a bootloader on using the Pololu AVR V2 Programmer. I’m new to flashing a bootloader, so I’ll apologize in advance for my ignorance. If the USB is not connected, then all of Nick’s low-power tips should work… you may need to pull the LDO regulator for the last little current leakage.I’m having a similar problem I’ve been struggling with for a couple days. I can’t seem to replace the bootloader it ships with.īut the issue with low power is that V-USB as implemented requires a pull-up resistor and that will forever cause a low drain regardless of the AVR sleep mode… see this link for R3 1500 Ohm pull-up. I’d like to replace it with a basic UNO bootloader but that leads me back to the question above. I speculate it is due to the extensive bootloader they have written to allow USB downloads. I wanted to use the Pro Trinket as the chip for the project but it’s minimal current draw is around 2mA, even after disabling the power LED. I set this up on a breadboard and can get the system to hibernate at ~. I have a low current draw project that needs to run on batteries for a long period of time (> 3 months).
I’ve created breadboard ATMega328Ps using Nick’s board_detector and board_programmer sketches in the past. I can't seem to replace the bootloader it ships with.
I'd like to replace it with a basic UNO bootloader but that leads me back to the question above. I wanted to use the Pro Trinket as the chip for the project but it's minimal current draw is around 2mA, even after disabling the power LED. I've created breadboard ATMega328Ps using Nick's board_detector and board_programmer sketches in the past. When I try to program a UNO bootloader on the board, it won't enter programming mode. Here is a partial output from the board_detector sketch, reading from a Pro Trinket 3.3V :Ĭompiled on at 21:52:25 with Arduino IDE 10601.Īttempting to enter ICSP programming mode. Can you tell me if the Adafruit Pro Trinket bootloader is incompatible with Nick Gammon's board_programmer sketch?
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