Ti网站买的开发板F28335 、在练习串口通信(SCI)第一个实验时,不知道如何接线,是不是只用usb,不用其他的?
接收软件:hercules_3-2-5.exe。
我只用usb做第一个实验时,接收软件没反应,不知道怎么设置,还是其他的原因
Jones Chen:
F28335芯片上没有USB接口啊?
TI上的F28335的USB口是用来供电和当成仿真器使用的,不是串口,如果需要串口,在板子上有个4个针的接口,那个口是串口。
Ti网站买的开发板F28335 、在练习串口通信(SCI)第一个实验时,不知道如何接线,是不是只用usb,不用其他的?
接收软件:hercules_3-2-5.exe。
我只用usb做第一个实验时,接收软件没反应,不知道怎么设置,还是其他的原因
god_like:
回复 Jones Chen:
需要串口,在板子上有个4个针的接口,那个口是串口
这个4个针的接口用什么线接,接在什么地方呢?
菜鸟一个,麻烦高手了。
原文是下面,dsp套装好像没有串口通信的线,要另外买?
Objective
The objective of this lab is to establish an SCI transmission between the F28338x and a serial
port of a PC.
The SCI-A communication channel is used to send data from F28335 to a host, using RS232
voltage levels. The F28335 controlCARD has an onboard RS232-transceiver and the signals
Tx and Rx are available at header J12 of the Peripheral E xplorer Board. Plug in the serial
cable provided to header J12 making sure the red wire aligns with the Rx pin on the
Peripheral Explorer Board.
A standard DB9 cable (1:1) with male and female connectors can be used to connect to the
host, for example to a COMx – interface of a PC. On the host side you need a terminal
program (e.g. Windows XP Hyper Terminal Program or a freeware tool for XP and Vista,
such as “ Hercules” ( www.HW-group.com). The setup for the communication is as follows:
• 9600 bit/second
• 8 characters
• odd parity
• 1 stop bit
• no protocol
The task for the F2833x is to transmit a text message, e.g. “ The F28335 – UART is fine! \n\r”
periodically. No interrupt services are used for this first and basic test.