| ??? 04/23/10 09:00 Read: times |
#175314 - why You worry? Responding to: ???'s previous message |
The ISP feature allows for a wide range of baud rates to be used in your application,independent of the oscillator frequency. It is also adaptable to a wide range ofoscillator frequencies. This is accomplished by measuring the bit-time of a single bit in a received character. This information is then used to program the baud rate in terms of timer counts based on the oscillator frequency. This is from NXP datasheet. I never used this chip, but did You tryed to do IAP with 40 MHz , or 20Mhz, or 16MHz. Yes - its not clear from this datasheet what resources IAP firmware uses, but i think prgramming can be done with any Xtal (in allowed range) . Just setup lower baud rate. How You calculated % error ? regards |
| Topic | Author | Date |
| To Set Baud Rate at 9600 | 01/01/70 00:00 | |
| why You worry? | 01/01/70 00:00 | |
| Baud rate errors | 01/01/70 00:00 | |
| Ok..!! | 01/01/70 00:00 | |
| It's not that demanding | 01/01/70 00:00 | |
| it's even less demanding .... | 01/01/70 00:00 | |
| erm... | 01/01/70 00:00 | |
| Sorry?? | 01/01/70 00:00 | |
| well | 01/01/70 00:00 | |
| mistype?? | 01/01/70 00:00 | |
| Is it Fine ? | 01/01/70 00:00 | |
in 6 clock mode the max freq is 20MHz | 01/01/70 00:00 |