4/24/2021 0 Comments Ms Access Read Serial Port
This is then inserted into the connector of the serial port to be tested.I am interested in electronics, and building small one-off circuits around tiny chips (the electronic kind).I shall walk you through the process of setting up a serial port and hyperterminal on a computer running windows XP.
Ms Access Read Serial Port Serial Port ToMs Access Read Serial Port Download Step 1Add Tip Ask Question Comment Download Step 1: Find Your Serial Port In order to set it up, first you have to find it on your computer. Long long ago, almost all computers had two serial ports, called COM1 and COM2, one a with a nine pin and the other with a 25 pin connector. ![]() It is usually a dongle which plugs into a USB port, with a nine pin male connecter at the other end. The third seial port, here labelled COM4, belongs to the USB to serial adapter I have plugged in. If you find a nine pin male connector (two rows, five and four, pins sticking out inside a metal shell) it has a serial port built in. Right click on My Computer and select properties (at the bottom of the list that pops up). Click on the Device Manager button and a something similiar to this picture should appear. The list of printer and Serial ports available will be shown. Make a note of those, you will need them in the steps that follow. Add Tip Ask Question Comment Download Step 2: Open Up Hyperterminal Hyperterminal is a communication program that comes along with windows. You get it by clicking on all programs, moving on to Accessories, Communications and then there you have it. Add Tip Ask Question Comment Download Step 3: Enter the Serial Port Info You can select the serial port to use for connecting. You set up a serial connection by specifying a name (anything goes) an icon (select one) and then you come to this screen which lets you specify the exact serial port to use. If you are unsure, try each in turn until you stumble on the right one. Add Tip Ask Question Comment Download Step 4: Set Connection Parameters Next, you will have to set up the connection speed, number of bits, parity and stop bit settings. You have to use the same settings at both the ends or the link will not work. Add Tip Ask Question Comment Download Step 5: The Serial Connection - Signals To connect to the serial port, a minimum of three lines are needed - the transmitted data TxD(pin3), the received data RxD(pin2), and Ground(pin5). This voltage would be somewhere in the fifteen to twelve volt range. At least three volts would be required for the computer to get the data without error. Add Tip Ask Question Comment Download Step 6: Loopback Test When hyperterminal has been correctly setup, whatever you type into its window gets sent out to the wild yonder through the TxD pin. Whatever gets in through the RxD pin gets displayed on the screen.
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