169 reputation
6
bio website
location Munich, Germany
age 35
visits member for 1 year, 6 months
seen 11 hours ago
stats profile views 12

My main interests currently are mobile app development, embedded programming, and cloud services programming (e.g. App Engine).


Apr
17
comment DHCP with ENC28J60 on PowerLine Adaptors
Did you capture the packets from the other machine which are successful via Powerline? If you compare them with your failing packets, maybe you find a minor but significant difference. One other thought, the other machine might use DHCPv6.
Jun
6
accepted Sharing antenna between receiver and transmitter
May
29
comment Sharing antenna between receiver and transmitter
I am also interested in what you say to the SPDT switch idea. Is this a feasible solution or overkill?
May
29
comment Sharing antenna between receiver and transmitter
The datasheets in my case are pretty bad... All I can read there is the sensitivity, which is -106dBm, but that probably doesn't say anything about the voltage limit of the RF input pin. Is there a possibility of a creeping damage over time (and RX performance degradation), or would you say that if it works say over a couple of days operation, there is no damage?
May
29
asked Sharing antenna between receiver and transmitter
May
27
revised Improve RF range with a boost converter?
fixed typo
May
27
comment Improve RF range with a boost converter?
That was what I was looking for. Good info about the noise of the converters as well.
May
27
accepted Improve RF range with a boost converter?
May
27
asked Improve RF range with a boost converter?
May
14
comment How can I reduce the size of an AVR ethernet bootloader?
@NickJohnson Good idea going below UDP would reduce the size even more. I am not sure though what commonplace routers/switches do with raw Ethernet packets. Wouldn't I have a problem with routing between devices?
May
13
awarded  Teacher
May
13
accepted How can I reduce the size of an AVR ethernet bootloader?
May
13
answered How can I reduce the size of an AVR ethernet bootloader?
May
1
comment How can I reduce the size of an AVR ethernet bootloader?
@KevinVermeer You are right without the code it is difficult. I was looking for high level design advice but I realize that won't work either without the code. For now I am good as I realized I don't really need DHCP in my setting. So I am well below the 4k boundary now.
Apr
27
comment How can I reduce the size of an AVR ethernet bootloader?
As for the ethernet chip, I am using an ENC28J60.
Apr
27
comment How can I reduce the size of an AVR ethernet bootloader?
The 4K is the maximum size you can configure the bootloader section to (NRWW section) on the Atmega328. I understand it is technically possible to have a bootloader larger that size. You need to make extra considerations though as I outlined in option 2.
Apr
26
revised How can I reduce the size of an AVR ethernet bootloader?
Added caveat for option 2
Apr
26
asked How can I reduce the size of an AVR ethernet bootloader?
Apr
15
comment ENC28J60 not getting link
I am a software developer getting into hardware, so, yeah, I am kinda out of town.
Apr
15
accepted ENC28J60 not getting link