I2CEncoderMini
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Fattoresaimon
INT pin not working
I assembled 4 pieces of I2CEncoderMini_V1.1 and uploaded the HEX file directly. I've got everything working except the INT pin. I'm using the Basic_with_Callbacks sketch. I'm trying to read the configuration and it is: interrupt config is 255 ID code is 57 version is 17 It seems to me that the INT pin never goes LOW regardless of "i2cEncoderMiniLib::IPUP_ENABLE" or IPUP_DISABLE. Is there something else around the proper use of the INT?
Hello, The int pin is also the UPDI pin used for programming. You have also to flash the fuse bit in order to change the UPDI pin to GPIO. In atmel studio there is a checkbox where you can select that field. If you used some DYI programmer probably it will not work, but i'm not sure. I suggest you to use the pickit4 and use directly Atmel studio by loading the elf file.
Hello, Thank you Fattoresaimon for your prompt response. I liked very much your encoder solution. I'm working in Linux and I don't have pickit4... I want to share the following solution which works, It uses avrdude (the same used by Arduino to upload):
for test pruposes (UPDI enabled) <PATH TO>avrdude -C <PATH TO>avrdude.conf -v -p attiny402 -c jtag2updi -P /dev/ttyUSB0 -Ufuse2:w:0x02:m -Ufuse6:w:0x04:m -Ufuse8:w:0x00:m -Uflash:w:I2CEncoderMini.hex
for "production" purposes (GPIO enabled, UPDI locked) <PATH TO>avrdude -C <PATH TO>avrdude.conf -v -p attiny402 -c jtag2updi -P /dev/ttyUSB0 -Ufuse2:w:0x02:m -Ufuse5:w:0xc1:m -Ufuse6:w:0x04:m -Ufuse8:w:0x00:m -Ulock:w:0x00:m -Uflash:w:I2CEncoderMini.hex
Hello, So at the end was the fuse bit right? Pay attention that in case of UPDI disabled you need to give the 12V pulse to revert back to UPDI. Thank you for sharing your solution! i think it will be useful for some other user. Thank you, Simone
Hello, I tried the suggestion from nburobotics but I can't find the EncoderMini via i2c after the flash.
Result from flash: C:\avrdude>avrdude -v -p attiny402 -c jtag2updi -P com1 -Ufuse2:w:0x02:m -Ufuse6:w:0x04:m -Ufuse8:w:0x00:m -Uflash:w:I2CEncoderMini.hex
avrdude: Version 6.3, compiled on Feb 17 2016 at 09:25:53 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\avrdude\avrdude.conf"
Using Port : com1
Using Programmer : jtag2updi
JTAG ICE mkII sign-on message: Communications protocol version: 1 M_MCU: boot-loader FW version: 1 firmware version: 6.00 hardware version: 1 S_MCU: boot-loader FW version: 1 firmware version: 6.00 hardware version: 1 Serial number: 00:00:00:00:00:00 Device ID: JTAGICE mkII AVR Part : ATtiny402 Chip Erase delay : 0 us PAGEL : P00 BS2 : P00 RESET disposition : dedicated RETRY pulse : SCK serial program mode : yes parallel program mode : yes Timeout : 0 StabDelay : 0 CmdexeDelay : 0 SyncLoops : 0 ByteDelay : 0 PollIndex : 0 PollValue : 0x00 Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
prodsig 0 0 0 0 no 61 61 0 0 0 0x00 0x00
fuses 0 0 0 0 no 9 0 0 0 0 0x00 0x00
fuse0 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse1 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse2 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse4 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse5 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse6 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse7 0 0 0 0 no 1 0 0 0 0 0x00 0x00
fuse8 0 0 0 0 no 1 0 0 0 0 0x00 0x00
lock 0 0 0 0 no 1 0 0 0 0 0x00 0x00
data 0 0 0 0 no 0 0 0 0 0 0x00 0x00
usersig 0 0 0 0 no 32 32 0 0 0 0x00 0x00
flash 0 0 0 0 no 4096 64 0 0 0 0x00 0x00
eeprom 0 0 0 0 no 128 32 0 0 0 0x00 0x00
Programmer Type : JTAGMKII_PDI
Description : JTAGv2 to UPDI bridge
M_MCU hardware version: 1
M_MCU firmware version: 6.00
S_MCU hardware version: 1
S_MCU firmware version: 6.00
Serial number: 00:00:00:00:00:00
Vtarget : 5.0 V
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.16s
avrdude: Device signature = 0x1e9227 (probably t402) avrdude: NOTE: Programmer supports page erase for Xmega devices. Each page will be erased before programming it, but no chip erase is performed. To disable page erases, specify the -D option; for a chip-erase, use the -e option. avrdude: reading input file "0x02" avrdude: writing fuse2 (1 bytes):
Writing | ################################################## | 100% 0.01s
avrdude: 1 bytes of fuse2 written avrdude: verifying fuse2 memory against 0x02: avrdude: load data fuse2 data from input file 0x02: avrdude: input file 0x02 contains 1 bytes avrdude: reading on-chip fuse2 data:
Reading | ################################################## | 100% 0.01s
avrdude: verifying ... avrdude: 1 bytes of fuse2 verified avrdude: reading input file "0x04" avrdude: writing fuse6 (1 bytes):
Writing | ################################################## | 100% 0.01s
avrdude: 1 bytes of fuse6 written avrdude: verifying fuse6 memory against 0x04: avrdude: load data fuse6 data from input file 0x04: avrdude: input file 0x04 contains 1 bytes avrdude: reading on-chip fuse6 data:
Reading | ################################################## | 100% 0.01s
avrdude: verifying ... avrdude: 1 bytes of fuse6 verified avrdude: reading input file "0x00" avrdude: writing fuse8 (1 bytes):
Writing | ################################################## | 100% 0.01s
avrdude: 1 bytes of fuse8 written avrdude: verifying fuse8 memory against 0x00: avrdude: load data fuse8 data from input file 0x00: avrdude: input file 0x00 contains 1 bytes avrdude: reading on-chip fuse8 data:
Reading | ################################################## | 100% 0.01s
avrdude: verifying ... avrdude: 1 bytes of fuse8 verified avrdude: reading input file "I2CEncoderMini.hex" avrdude: input file I2CEncoderMini.hex auto detected as raw binary avrdude: writing flash (4096 bytes):
Writing | ################################################## | 100% 2.05s
avrdude: 4096 bytes of flash written avrdude: verifying flash memory against I2CEncoderMini.hex: avrdude: load data flash data from input file I2CEncoderMini.hex: avrdude: input file I2CEncoderMini.hex auto detected as raw binary avrdude: input file I2CEncoderMini.hex contains 4096 bytes avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 1.35s
avrdude: verifying ... avrdude: 4096 bytes of flash verified
avrdude done. Thank you.
