| ??? 07/11/07 12:47 Modified: 07/11/07 12:52 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#141752 - Explanations Responding to: ???'s previous message |
But with the SLK we cann't create synchronize the ADC with the clock pulses.
The ADC has two different clocking modes for serial communication - self-clocked (where it provides the serial clock) and externally clocked (where the partner must provide the serial clock). In the example given in the datasheet, external clocking is used, so the microcontroller provides the clock for the serial communication. But with the Microcontroller serial communication, In the Port P3.0 bidirectional is not possible. You either have a '51 that deviates quite a bit from a "standard" 8051, or think about the 8051 serial port as being a UART with TX and RX lines. In the example, the serial port is used in mode 0, in which it is not a UART, but a shift register. There are no TX and RX lines, but a bidirectional data line (P3.0) and a clock line. The corresponding chapter in the 8051 hardware documentation says: More About Mode 0 Serial data enters and exits through RxD. ... |
| Topic | Author | Date |
| How can we read 24bits on 8051 | 01/01/70 00:00 | |
| Same way that you'd eat a whole whale... | 01/01/70 00:00 | |
| Andy Neil | 01/01/70 00:00 | |
| One bit at a time. | 01/01/70 00:00 | |
| A few minutes ahead ! | 01/01/70 00:00 | |
| Already Studied that Datasheet | 01/01/70 00:00 | |
| Explanations | 01/01/70 00:00 | |
| why do so many use such CRAP | 01/01/70 00:00 | |
| Guess at an answer: | 01/01/70 00:00 | |
Manufacturers' websites | 01/01/70 00:00 | |
| Communication Protocol Doubt | 01/01/70 00:00 | |
| Read The Fine Manual - please | 01/01/70 00:00 | |
| Where to get the Datasheet | 01/01/70 00:00 | |
| Communication Protocol | 01/01/70 00:00 |