| ??? 07/20/05 08:49 Read: times |
#97669 - IAP Responding to: ???'s previous message |
It depends on the particular model of microcontroller. For older and cheaper ones it is not possible at all. Where it is possible, this feature is usually referred to as IAP (in-application programming) and is usually accomplished by a sequence of writing into certain dedicated SFRs, or wrting the data into an internal buffer using MOVX while a certain bit in SFRs is set, and then triggering a full row write by writing a sequence o commands into certain SFRs. Sometimes the details are hidden for the user by a code in ROM, which provides for the user more convenient API calls. But the exact procedure changes from chip to chip, there is no standard. You need to read the dtasheet of the particular derivative you are planning to use. Jan Waclawek |
| Topic | Author | Date |
| About flash rom | 01/01/70 00:00 | |
| IAP | 01/01/70 00:00 | |
| IAP | 01/01/70 00:00 | |
| IAP, ISP | 01/01/70 00:00 | |
| terminology | 01/01/70 00:00 | |
| more | 01/01/70 00:00 | |
| There's always one... | 01/01/70 00:00 | |
| I disagree | 01/01/70 00:00 | |
| I disagree with your disagreement...! | 01/01/70 00:00 | |
| and I disagree that we disagree | 01/01/70 00:00 | |
| egg or chicken? | 01/01/70 00:00 | |
| You say Tomato, ... | 01/01/70 00:00 | |
| IAP | 01/01/70 00:00 | |
| do not forget | 01/01/70 00:00 | |
| Why you want to write to ROM??? | 01/01/70 00:00 | |
no, he don't | 01/01/70 00:00 |