Reading Dynamixel with AVR 8535

[ryann2k1]

Hi all,

Does anyone ever work with Code vision C AVR programming environment?

I am doing a project and trying to replace the cm-5 with the microcontroller AVR ATMEGA 8535 and managed to send commands to the dynamixel motor. but when it comes to read the dynamixel, my microcontroller can not detect the data, it can just detect the FF FF and the rests are missing.

Thank you in advance.

Regards,


Ryan

[nsted]

Did you find a solution to this...I'm having a similar problem. When I try to read, I always get the full header and ID, and then every other byte is dropped?!

[i-Bot]

The usual problem when these symptoms occur is that you are not reading the UART fast enough. If the bus is running at high speed, especially 1M, the bytes come back pretty fast, and the UART only has a couple of bytes buffered.

You must read and store the bytes as quick as they come in. Don't do any long processing while receiving. Wait till all received then process the bytes.

See this topic for some ideas:
http://robosavvy.com/forum/viewtopic.ph ... highlight=