Type in the full discussion title or a part of it.
Discussion Title Created date
powering avr with a range of 3.3 to 7 volts
I have an application where I need to run an atmega32u4 with a range from 3.3 to 7 volts (Allowing for at-least 200ma). Since I need the clock to be 16 I'm a bit concerned...
Sunday, 4 August 2019 - 23:05
SPI revieve flag check.
I'm unclear on something here. In the event the SPI does not receive data from its master, how does one know?   for example if I have this     unsigned char...
Sunday, 28 July 2019 - 21:04
help replacing line with NOP
I have some time sensitive code that I used some debug to make work.  Now I need to remove the debug but I can not find the right NOP substitutes   code DDRB=0xff; int...
Wednesday, 24 July 2019 - 21:56
Thought I knew how SPI worked till I worked on a slave...
I have been working with SPI for a while but honestly never had to write code for a slave. The prediction bytes are confusing me, how does this work? For example, I'm copping a...
Friday, 19 July 2019 - 01:28
spi 5v to v3 logic.
  I'm trying to find a way to use a SPI slave (5v) with a SPI master(3v)   I'm able to read all data from the master with my atmega32u4 but sending is random.  I...
Thursday, 18 July 2019 - 16:57
spi ss line / pin issue
  I have an interface where it communicate in the same fashion as an SPI. Only issue is the normal SS lines is an ack. Is blips just before data is transmitted to the master...
Tuesday, 16 July 2019 - 18:09
atmega32u4 pre assigned pins
Need some help in an area I'm struggling with.     I'm going to be using the atmega32u4 for my next project and I need to make sure I map out all the pins I will need...
Monday, 8 July 2019 - 17:14
atmegs32u4 bootloader confusion.
I have a atmega32u2 that came with a HID based driver that shows up at atmega32u2 and I use dfu-programmer to program it. I just bought a atmega32u4 and it came with a AVR CDC...
Friday, 5 July 2019 - 20:49
Looking for a simple voltage devider to make this work.
      I'm wondering if this can be done without a mosfet?     I have the following set up and working, the 3v TTUL works because the z-doids  but...
Thursday, 4 July 2019 - 12:34
any avr based rf chips?
I'm looking for a chip like the nrf25 but I want to use my own protocol, not ISP, i2c, or what not. I just need 2 communication pins to do what I need. So something that would...
Saturday, 29 June 2019 - 22:24
uuencode, did I get it right?
    I didn't see any example function for doing 3 in 4 out uuencoding but it seem simple enough, does it look right?       unsigned char a = 1;  ...
Tuesday, 18 June 2019 - 15:10
Is BT a data or serial device?
Not really sure where to ask this and it is not about a specific chip but I'm using BT in my projects and I work with AVR chips. I can send AT commands to my HC-05 BT device with...
Friday, 14 June 2019 - 18:59

Pages