| ??? 04/15/05 17:19 Read: times |
#91674 - TRIM Responding to: ???'s previous message |
1)how is the frequency of internal RC oscillator related to the content of TRIM register, what is the tuning step and the limits, 2)and what are the consequences of de-tuning the chip (will it write FLASH properly?).
1) I do not know the steps, but it is initialized to what gives the 7.xxx MHz that is specified. Anyhow since the datasheet states "much better than 1%" I would assume a step of something like .1% or 7kHz. 2) but for UART etc, it should be none since you can use an external crystal for 0-12MHz. Erik |
| Topic | Author | Date |
| P89LPC932A1 internal RC osc. TRIM | 01/01/70 00:00 | |
| TRIM | 01/01/70 00:00 | |
| TRIM range 6.5MHz to 12MHz | 01/01/70 00:00 | |
| completely confused now... | 01/01/70 00:00 | |
| warning | 01/01/70 00:00 | |
| more confusion | 01/01/70 00:00 | |
| who Knows | 01/01/70 00:00 | |
| Consider This... | 01/01/70 00:00 | |
| datasheets??? | 01/01/70 00:00 | |
That is not correct | 01/01/70 00:00 |