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Anyone done a pendrive reader on an ATSAM4L MCU?
Has anyone here ever done a circuit that access files on a USB FLASH drive for an ATSAM4L MCU?   I'm trying to do it using the USBC host driver provided by Atmel on Atmel...
Thu. Apr 5, 2018 - 05:13 PM
FatFs halting sometimes
Hi all,   I'm using the FatFs module to access a USB FLASH drive on a project for the ATSAM4LC2AA microcontroller. Everything is working fine except for one detail...
Tue. Apr 3, 2018 - 08:01 PM
Can't program fuses
Hi all, I'm using AVRISP mkII in Atmel Studio 7. I can read the fuses of a atxmega256D3 and program the flash just fine, but if I try to program the fuses I get a verification...
Fri. Mar 16, 2018 - 06:24 PM
XMEGA256 EEPROM issue
Hi all,   I'm using the ATXMEGA256D3 on a board, and using it's EEPROM. Well, during testing I turn the board on, then off, then on again, and at some point when I turn it on...
Thu. Mar 15, 2018 - 08:55 PM
I/O's supplied by LCDA have no power
Hi all, I'm using an ATSAM4LC2A on a board and made a small program that simply toggles PA20, outputting a square wave. The MCU programs fine but I get no square wave on PA20....
Thu. Dec 7, 2017 - 04:55 PM
Programming ATSAM4L on OpenOCD
I'm trying to simply program an ATSAM4LC2A with a J-Link using OpenOCD. OpenOCD programs and verifies it, and reports that everything was ok. But the circuit will not give any...
Tue. Dec 5, 2017 - 09:22 PM
Pendrive host without SAM4L xplained pro
Hello all, I bought a SAM4L xplained pro kit and made a pendrive host that allowed me to browse the plugged pendrive folders via a UART terminal. Once that was done, I've made my...
Tue. Dec 5, 2017 - 03:04 PM
32MHz external oscillator
Is it really allowed? Can I use an external oscillator that outputs 32MHz into the XTAL1 pin? The datasheet doesn't leave it clear what's the allowed frequency range, and I was...
Wed. Aug 30, 2017 - 11:41 PM
SAM4L 48-pin JTAG+SPI
Good morning everyone,   I'm pretty new to the SAM4L MCUs and I'm designing a board that uses the ATSAM4LC2AA-AU, which is a 48-pin SAM4L. And so, for the JTAG port, the TDO...
Wed. Aug 30, 2017 - 01:05 PM
Programming a SAM4L
If I just want to write my firmware into the ATSAM4L MCU the easiest, simplest way possible, is it really the Atmel ICE using JTAG? JTAG is such a large connector. The AVR MCUs...
Fri. Aug 18, 2017 - 10:45 PM
Porting ATSAM4LC4 code into ATSAM4LC2
I've been using the SAM4L XPLAINED PRO development board that has an ATSAM4LC4 chip on it for a new project. Now I'm ready to design the actual board, and I was wondering: I...
Thu. Jul 13, 2017 - 05:55 AM
FLASH drive host stops working after a few uses
Hello I'm using the SAM4L Xplained Pro board with the USB Host MSC FatFS Example, which writes a file to all USB FLASH drives inserted on the USB port. It works great. However,...
Sat. Jun 24, 2017 - 08:51 PM

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