| ??? 10/31/07 10:00 Read: times |
#146404 - More info required Responding to: ???'s previous message |
As others have noted, it would be helpful to have more info; in particular, how much of this is under your control?
Jeroen Wilbers said:
the biggerst problem is that the CD-players themselves broadcast data at "any given time" (the tracktime and so on) Can this information also be requested "on demand"? If so, the "master" would just need to detect that the slave had sent "something" - which could be a simple interrupt on the leading edge of the start bit; The master would then switch the RS232 link to that "slave" and ask it to report its state. Note that the devices suggested by Ap Charles have 64-byte FIFOs - would that be sufficient to capture an entire "message" from a "slave", for the "master" to read at its leisure? If not, maybe a variation on my suggestion above: the "master" sees the FIFO overflow state, and requests the "slave" to report its state.. |
| Topic | Author | Date |
| Tripple UART | 01/01/70 00:00 | |
| External UARTs ? | 01/01/70 00:00 | |
| software UART | 01/01/70 00:00 | |
| Different options | 01/01/70 00:00 | |
| much of this follows from the fact... | 01/01/70 00:00 | |
| simplified software UART | 01/01/70 00:00 | |
| processing? | 01/01/70 00:00 | |
| And if this is designed in-house | 01/01/70 00:00 | |
| Master/slave | 01/01/70 00:00 | |
| How much control do you have ? | 01/01/70 00:00 | |
| who write/wrote the firmware for the "slave"s? | 01/01/70 00:00 | |
| Raw code by leo lau | 01/01/70 00:00 | |
| So why the 3rd 8051? | 01/01/70 00:00 | |
| 3rd 8051 | 01/01/70 00:00 | |
| More info required | 01/01/70 00:00 | |
| SC16IS752/SC16IS762 | 01/01/70 00:00 | |
| Dual UART with I2C-bus/SPI interface | 01/01/70 00:00 | |
| Possible tripple UART solution | 01/01/70 00:00 | |
| the easy way | 01/01/70 00:00 | |
| What's a LPC?? | 01/01/70 00:00 | |
LPC - Good question... | 01/01/70 00:00 |