| ??? 03/06/06 08:02 Read: times |
#111339 - great start! Responding to: ???'s previous message |
Vignesh Prasad said:
Last night, I built a data capture hardware. It has an Atmega8535 running at 8MIPS, with RS232 of 56000 Baud.
I could read a byte(from a 8bit port), and send it thru UART in less than 100usec. I havent used any sort of buffering(just was checking the idea), Good start, AVRs are well suited for tasks like this. (I hope I will not be expelled from here, is it a big sin to praise AVRs a bit? :-) Similar to the SiLabs perhaps in terms of raw computing power/speed but certainly a lot cheaper. Vignesh Prasad said:
but the problem was on the other side: I used serial caputure terminal called 'Bray's terminal', and it takes a lot of time for the capture program to manipulate this much data. My finding is, that almost no free terminal program under win can correctly capture bigger amounts of serial data received at higher speeds. The one I use successfully for this purpose is realterm (realterm.sourceforge.net), but note that hardware handshake is a must. (a remark, don't use realterm to _send_ binary data, has a flaw - ehm, a feature as it IS documented :-) - won't transmit 0x1A). I am eager to hear how did you proceed with this; sounds to be a promising way to a ultralightweight hobby-LA . Jan Waclawek |
