Type in the full discussion title or a part of it.
Discussion Title Created date
ATSHA204a - CheckMac with Roll Key Operation
Hi,   I have a ATSHA204a configured to roll the key in slot 4 when the derivedKey command is executed. In the below example, I am able to reset the key to its original value...
Sunday, 23 June 2019 - 17:02
allow spaces with scanf
Hi - I am working on a SAMD21 project. I'm using the Stardard I/O module for receiving input from the user via USART. How do allow a space to be entered with scanf? I've...
Saturday, 27 October 2018 - 22:17
Memory out of bounds or read error - usart_serial_putchar
I am working on a library for the SAMD21 and ATAES132a. In my program's main loop, I do a scanf to get the users input. One of the options runs a complete test of the ATAES132a...
Friday, 10 August 2018 - 22:37
Adding libtomcrypt to AS7 [Please Delete]
Adding libtomcrypt to AS7 [Please Delete]
Saturday, 21 July 2018 - 13:02
ATSHA204a - Calculate the expected response
I am working with the ATSHA204A - CryptoAuthentication chip. The chip performs SHA256 Hash Algorithm with Message Authentication Code (MAC). I am able to hash the known key...
Thursday, 5 July 2018 - 00:10
ATAES132a MAC Generation for Decryption
This question is related to https://community.atmel.com/forum/ataes132a-help-decryption-mac-error   I am asking in a new thread because I believe my question has changed from...
Wednesday, 27 June 2018 - 10:51
ATAES132a Help with Decryption - MAC Error
I've been working with an ATAES132a, learning how to read/write memory over i2c with my SAMD21 xplained pro. To help me learn, I dropped $20 on a AT88CK590 Kit, which allows...
Saturday, 23 June 2018 - 00:04
ATAES132A i2c Write/Read help
I am working with a ATAES132A (AES Serial EEPROM) - I am using a SAMD21J18A (xplained pro) and ASF. I am trying to do a simple write/read operation to generate a Random number...
Saturday, 16 June 2018 - 20:30
Writing firmware binary directly to NVM - SAMD21
I am working on a HTTP firmware bootloader. The application will download the latest firmware.bin file from a local server and store it in Flash via NVM.  NVM requires I...
Sunday, 27 May 2018 - 14:09
Splicing char array
I'm working on a project where I am getting data packets from a server. The data is received as a char array, and the length can be upwards of 1500 in size. Too big for me to...
Thursday, 24 May 2018 - 23:52
SAMD21 - Sleep Manager - wake without interrupt (SYSTICK)
I am using ASF Sleep Manager - Is it possible to wake the MCU from sleep at a certain time interval with SYSTICK?   volatile uint32_t g_ul_ms_ticks = 0; volatile bool...
Sunday, 15 April 2018 - 14:26
Sending structured data over serial to a PC app - best practice
I have small project where I am passing structured data over serial to a PC app. The data is used to provide a visual topology of my nr24L01+ star network. My question is in...
Sunday, 25 March 2018 - 14:07