| ??? 11/20/14 11:35 Read: times |
#190380 - You can NOT write to ROM Responding to: ???'s previous message |
You can only write to the AT89S52 flash memory via an external programmer. e.g. in-circuit SPI or out-of-circuit HVPP.
Some devices, e.g. AT89S8253 have got on-chip EEPROM. you can write to EEPROM from your application. Other devices, e.g. AT89LP51xxx have on-chip bootloaders. You can write to Flash from your application (IAP) in-application-programming. Many modern 8051-type MCUs are able to do (IAP). The AT89S52 is not a modern MCU. You can always write to an unused area of Flash with your external programmer. David. |
| Topic | Author | Date |
| How to init a variable in ROM | 01/01/70 00:00 | |
| You can NOT write to ROM | 01/01/70 00:00 | |
| Hex file | 01/01/70 00:00 | |
| Initialize code | 01/01/70 00:00 | |
| toolchain? | 01/01/70 00:00 | |
| Using SDCC... | 01/01/70 00:00 | |
| that chip does not have any ROM | 01/01/70 00:00 | |
Here is the solution I was looking for | 01/01/70 00:00 |