CodeWarrior1241
Newbie level 3
microcontroller linear time code
Hi all,
I wanted to get some guidance on on a task I'm trying to complete with the LM3S9B92 MCU... Basically, I have a serial 80-bit data stream frame that is sent to the micro at 30Hz, i.e. 2400bps total. I need to take each frame, do some minimal processing, and send it out over USB to a PC.
My question is this - what's the best way to get the frame into the LM3S9B92? I could bit-bang it into the pin I suppose, but I was wondering if there's a better way to do it. Are there architectural/peripheral refinements that could help me out which I could use for this?
The serial data I'm dealing with is a linear time code that's bi-phased mark modulated - it's an NRZ encoding scheme, so there's no separate clock signal. That's why SPI didn't seem like a likely peripheral to use... The byte stream contains a sequence of 13 bits that are used for synchronization, but these seemed different from the start/stop bits I have seen for UART transmissions... This is why I wasn't sure what peripheral (if at all) was best.
Thanks for everyone's help!
Hi all,
I wanted to get some guidance on on a task I'm trying to complete with the LM3S9B92 MCU... Basically, I have a serial 80-bit data stream frame that is sent to the micro at 30Hz, i.e. 2400bps total. I need to take each frame, do some minimal processing, and send it out over USB to a PC.
My question is this - what's the best way to get the frame into the LM3S9B92? I could bit-bang it into the pin I suppose, but I was wondering if there's a better way to do it. Are there architectural/peripheral refinements that could help me out which I could use for this?
The serial data I'm dealing with is a linear time code that's bi-phased mark modulated - it's an NRZ encoding scheme, so there's no separate clock signal. That's why SPI didn't seem like a likely peripheral to use... The byte stream contains a sequence of 13 bits that are used for synchronization, but these seemed different from the start/stop bits I have seen for UART transmissions... This is why I wasn't sure what peripheral (if at all) was best.
Thanks for everyone's help!