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SAMD21 adc_sync_set_inputs(..) Macros
Hi    I'm a bit confused about the definitions for the positive and negative mux inputs on my SAMD21 ADC.  I have 8 inputs into the ADC and I want to configure each...
Friday, 15 December 2017 - 05:54
How to software reset SAMD20
Hi,   When my main app is running, I want to fall back to bootloader. To do that I set some flags  in flash then issue a software reset. I googled on how to software...
Thursday, 26 October 2017 - 23:59
SAMD20 interrupt vector table is correct but dummy_handler gets called
Hi,   In my SAMD20 app that is launched from a bootloader my interrupt vector table is correctly setup at 0x1000 (the start address of the app). I have verified this by...
Tuesday, 24 October 2017 - 05:53
Interrupt issues in SAMD20 app launched from bootloader
Hi,   I have a custom board with SAMD20. I have a working bootloader that successfully launches the main app. In the main app MCU, GPIOs, ADC, 2xI2C, 2xUSARTS, Timer and SPI...
Saturday, 21 October 2017 - 01:33
SAMD20G17 not jumping to application in SAM-BA bootloader
Hi   I have a bootloader running on my custom board using SAMD20G17. UART, LEDs and NVM read/write are working. However when I try to jump to the application, it fails...
Saturday, 14 October 2017 - 22:03
Turn on LED on SAMD20 in bootloader code
Hi,   I'm fairly new to SAMD20, so this is a very basic question:   I'm trying to turn on 3 LEDs in the booloader code in SAMD20 on a custom board. My LEDS are connected...
Friday, 6 October 2017 - 01:49
SAMD20 bootloader - how to access flash
Hi,   I downloaded the SAMD20 BA source code from this link which Lajon provided (thanks Lajon)   In the entire project there are only 3 .c files main.c...
Monday, 25 September 2017 - 20:24
How to retrigger one shot timer in SAMD20
Hi,   I'm using SAMD20 on a custom board using Atmel Studio and Start project.   I have setup a one shot timer that fires as expected. After some time I want to start...
Sunday, 24 September 2017 - 01:45
SAMD20 bootloader source code
Hi,   We use a SAMD20 on a custom board and want to upgrade the SAMD20 firmware in the field. It seems my only option is to use SAM bootloader on my board and SAM-BA on a...
Saturday, 9 September 2017 - 22:44
Baud rate issues
Hi,   I'm using a SAMD20 with a UART interface to the host. Data transfer between SAMD20 and host works fine up to a baud rate of 115200. For anything higher than that we see...
Saturday, 9 September 2017 - 19:17