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while simulating in Keil its a prob with sbuf that u dont any value ovr thr…so only ‘0’ is displayed at evry disp with huge flikering….n i guess..for communication it has to be worked out on hardware itself …i guess…
for now jus tell me what is to be done to keep a digit diaplayed at resp display …i.e refrehing diaplay aftr prescribed timer timeout..
i am stuck with how to write a code for timer for 5msec refresh
ofcourse data received is from LSB.
Herein,first of all i hav to communicate with dial guage through rs-232. the reading on dial guage is received at Rxd which is supposed to be stored at sbuf. As received data is ASCII.first convert it to HEx by anding with 0x7Fh & comparing fo carriage return i.e CJNE 0x0D& store it at some memoy location.
later division is to be carried out so as to separate each digit by dividing d 4-digit data with 1000,100,10 respectivly.after evry DIV opration data in A is sent to disp being selcted by transistor selection & the remainder stored in B is carried to next DIV instruction by sending it to Acc.
i hav also stoed a look-up table at dptr with 0-9 hex values.
n virtual terminal connected is supposed to be dial guage just to carry out simulation
code for d complete circuit as in to cary out serial communication also….m coding in assembly….the task is jus to receive a 4-digit data from a dial guage & diaplay on 7-seg.
The data i continuosly varying depending on to load variation at d dial gauge.
