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Programming ATMEGA4808 using an MPLAB SNAP
My manufacturing partner in China wants to use MPLAB SNAP and MPLAB IPE to program ATMEGA4808 devices in a product they are manufacturing for me. MY device uses a bootloader, and...
Tuesday, 14 April 2020 - 13:51
Bluetooth audio receiver chip or module - suggestions please
Hi I am looking for suggestions for a single-chip bluetooth audio receiver - chip or module. In the past I have used these modules from Sierra (aka Bluecreation) the BC127 they...
Tuesday, 24 March 2020 - 12:00
Mega 0-Series and TWI (ATMEGA4808)
I'm trying to implement TWI Master on a ATMEGA4808  The device is a superb device, very rich on features, but the datasheet makes understanding thw TWI interface quite hard...
Thursday, 7 November 2019 - 17:03
ATmega3208 TCA0 - stupid me
I must have missed something in my understanding of single slope PWM on TCA0 in a 3208.   Here a code snippet: ISR(TCA0_OVF_vect) { PORTD_OUTTGL = PIN7_bm; } void...
Monday, 28 October 2019 - 10:28
Pond ripple effect
I hope I can explain this correctly...   A colleague has built a lighting installation. It is basically 24 Rings concentric rings of Led-tape. (5050-type RGB LEDs) Each...
Monday, 1 July 2019 - 08:49
MEGA3208 (0-series) SPI Gotcha
I've just spent an hour scratching my head as to why I couldn't get SPI Slave working on an ATMEGA3208   The 0-Series manual states this for the SPI registers:  ...
Wednesday, 26 June 2019 - 15:14
Expression evaluates as true?
Have a look at the screen shot below. You can see the code has hit the breakpoint, and I'm not 100% sure why.     I don't see how (0x000e >= 0x80) is evaluating as...
Friday, 3 May 2019 - 14:55
µSD Card on SPI - Reading blocks returns all-zeros
I am attempting to interface an XMEGA 256A3U to a µSD card using SPI. I have the hardware working, and all seems to go well until CM17 to read a single block.   I am...
Wednesday, 27 March 2019 - 10:25
AS& Doxygen intetgration
Trying to integrate Doxygen with AS7   I have installed the Doxygen extension:   And the documentation on Microchip.com  suggest that is all I need to do. However...
Monday, 11 February 2019 - 10:17
mega3208 - Prescaler always on?
I'm using a mega3208 and trying to understand the main clock, and prescaler activity. I would like the main clock to run at 20Mhz, so my fuses are thus:     So, FREQSEL...
Friday, 20 July 2018 - 09:49
Create -ve rail from +ve supplies.
Hi everyone,   A product I am working on requires a -12V supply for a couple of OP-AMPS. I'm currently using a circuit based around the LM2575-12 - but I think it's a bit of...
Tuesday, 22 May 2018 - 11:56
Atmel ICE Driver re-install for AS7?
I have been using AS7 on Windows 10 with an Atmel ICE for some months now without any trouble. Today I used ZaDig to install drivers for a USBAsp programmer for an unrelated...
Thursday, 29 March 2018 - 14:22

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