| ??? 03/12/10 19:35 Read: times |
#174080 - Why would you want do this?? Responding to: ???'s previous message |
Chris said:
The boot program will then copy program data from a serial EEPROM into the xdata space before clearing P1.0 to 0 in order to start using the external RAM as the code space. Why would you want to do this? The AT89S52 has ISP, which is way more comfortable than exchanging EEPROMs. If you want to alter the code, do it via ISP... Kai Klaas |
| Topic | Author | Date |
| Controlling /EA with a port pin? | 01/01/70 00:00 | |
| Why would you want do this?? | 01/01/70 00:00 | |
| Allowing system upgrades via MIDI sysex in the field | 01/01/70 00:00 | |
| So why on an 8051? | 01/01/70 00:00 | |
| Challenge?? | 01/01/70 00:00 | |
| Old fashioned 8031 dev boards | 01/01/70 00:00 | |
| Helpful points | 01/01/70 00:00 | |
| Good match | 01/01/70 00:00 | |
Budget | 01/01/70 00:00 | |
| See value to an extent... | 01/01/70 00:00 | |
| Internal XDATA addresable as XCODE? | 01/01/70 00:00 | |
| Executing code from XRAM | 01/01/70 00:00 | |
| Code in OnBoard XRAM | 01/01/70 00:00 | |
| Don't overlook other options ... | 01/01/70 00:00 | |
| FX2 | 01/01/70 00:00 | |
| I bet you can't | 01/01/70 00:00 | |
| Ideally a single chip design | 01/01/70 00:00 |