| ??? 10/07/06 16:33 Read: times |
#125962 - to generate tone of octave(8keys)with 89c51 Responding to: ???'s previous message |
Sir,
Could you assist me in developing a code(.asm) for tone generation with 8051/89C51 microcontroller well would be using the 8051 development board well th concept to generate tones of octaves i.e port0 would be the 8(just for 1 octave)push button Sir, Could you assist me in developing and sending a code(.asm) for tone generation with 8051/89C51 microcontroller well would be using the 8051 development board well th concept to generate tones of octaves i.e port0 would be the 8(just for 1 octave)push button keys as the input and port1 or port2 as o/p i.e the amplifier circuit to speaker..... once key is pressed and recognized its corresponding count (audio note frequency) is given to timer section of 8051 to give a square wave to speaker. octaves(combination of musical notes with 8 keys[not necessary a matrix]) program logic 1.look up table for mapping the count of audio freq's of keys 2.key debouncing 3.key pressed then map the count frm look up table 4.give to timer section of 8051 at 12mhz to get the o/p I would be grateful to the earnest reply..... sandy51 |
| Topic | Author | Date |
| problem with delays | 01/01/70 00:00 | |
| Omitted pull-ups at Port 0? | 01/01/70 00:00 | |
| No, it's pulled high | 01/01/70 00:00 | |
| You should see the connection... | 01/01/70 00:00 | |
| could it be your approach? | 01/01/70 00:00 | |
| p0 initialised as input port | 01/01/70 00:00 | |
| post the WHOLE code | 01/01/70 00:00 | |
| WHOLE code | 01/01/70 00:00 | |
| Try this | 01/01/70 00:00 | |
| WHOLE code | 01/01/70 00:00 | |
| Assuming that the external pullups are not working | 01/01/70 00:00 | |
| why is the delay not being excecuted? | 01/01/70 00:00 | |
| HOW DO YOU KNOW | 01/01/70 00:00 | |
| Through debugging | 01/01/70 00:00 | |
| I know nothing about keil debugger | 01/01/70 00:00 | |
| make code that resembles the flowchart and you wil | 01/01/70 00:00 | |
| whole? | 01/01/70 00:00 | |
| Ashwins stack handling is totally unsuited! | 01/01/70 00:00 | |
| to generate tone of octave(8keys)with 89c51 | 01/01/70 00:00 | |
sandy please start a new thread | 01/01/70 00:00 |