- Thu Mar 25, 2010 12:42 pm
#97002
Hi all. This is my first post. I didn't have much luck searching the forums, but please feel free to refer me to previous posts.
I'm having issues interfacing my SFE TX/RX modules to my other circuitry. Can anybody tell me what type of interface the TX module's data pin expects, and what the RX module's data pin will put out? That is, does the TX module expect RS232 logic levels? Does the RX module output RS232 levels, or is it something else, such as TTL logic levels? Also, is the stated baud rate just the maximum supported, or do I have to use that exact baud rate?
My goal is to send a very small amount of data (less than 100 bits) several times per day. The data will come from an FPGA's serial port, and at the receiver I need to interface to a parallel port on a Windows PC.
Here are the SFE TX and RX modules I'm using:
http://www.sparkfun.com/commerce/produc ... ts_id=8948
http://www.sparkfun.com/commerce/produc ... ts_id=8945
Also, when I searched the forums, I saw somebody mention a "RF-KLP-315 basics thread" - can anybody point me to that thread? I couldn't find it using the Search feature.
Thanks in advance.
I'm having issues interfacing my SFE TX/RX modules to my other circuitry. Can anybody tell me what type of interface the TX module's data pin expects, and what the RX module's data pin will put out? That is, does the TX module expect RS232 logic levels? Does the RX module output RS232 levels, or is it something else, such as TTL logic levels? Also, is the stated baud rate just the maximum supported, or do I have to use that exact baud rate?
My goal is to send a very small amount of data (less than 100 bits) several times per day. The data will come from an FPGA's serial port, and at the receiver I need to interface to a parallel port on a Windows PC.
Here are the SFE TX and RX modules I'm using:
http://www.sparkfun.com/commerce/produc ... ts_id=8948
http://www.sparkfun.com/commerce/produc ... ts_id=8945
Also, when I searched the forums, I saw somebody mention a "RF-KLP-315 basics thread" - can anybody point me to that thread? I couldn't find it using the Search feature.
Thanks in advance.