mstechca New Member May 17, 2006 #21 Connect the WR' pin to the WR' pin of the 8051, the RD' pin to the RD' pin of the 8051, and enable the RTC. On memory, there is a CE' pin which must be grounded in order for the chip to be enabled.
Connect the WR' pin to the WR' pin of the 8051, the RD' pin to the RD' pin of the 8051, and enable the RTC. On memory, there is a CE' pin which must be grounded in order for the chip to be enabled.
eblc1388 Active Member May 18, 2006 #22 esconele said: sir, thank you for helping me. but in your code you are not doing anything with RD WR AND ALE pins... Click to expand... I don't need to do anything because "the MCU is doing all that for me" when I use the MOVX A,@R0 instruction. You have to study the 8051 datasheet and familiar yourself with how the MOVX instruction works. The attached image would help you along. Attachments 8051_Timing.gif 18.6 KB · Views: 183
esconele said: sir, thank you for helping me. but in your code you are not doing anything with RD WR AND ALE pins... Click to expand... I don't need to do anything because "the MCU is doing all that for me" when I use the MOVX A,@R0 instruction. You have to study the 8051 datasheet and familiar yourself with how the MOVX instruction works. The attached image would help you along.