| ??? 07/18/10 03:22 Read: times |
#177355 - Study the datasheets Responding to: ???'s previous message |
Nathan Spinuzzi said:
Thanks for the info.
I was asking because I wanted to use the best microcontroller in my "inventory", and I don't have any money worth talking about to buy one, much less an eval board. I have all the materials to build one, two, or even three SBCs, (LCDs, RAM, EEPROM, buffers, latches, breadboard, power supplies, crystals, etc) the problem is I don't have the knowledge for some of the specifics. Is it possible to program a regular microcontroller to be a slave microcontroller? I have one each: D87C52EBP, D80C31F-1, D80C49, 48, 39, and uPD7810. Which would be the most versatile for running programs from external memory, and ISP? Thanks again, Nate You'll probably bet the most flexibility from the 87C52 used with the nEA pin pulled low. It has an internal EPROM, but you may not have the equipment to program it. If you have the hardware with which to progrma the flash/EEPROM then you can use it as the external program memory. Study the datasheet for that part, and for the memory components you have. Once you've done that, it will become more easily understandable how you should proceed. RE |
| Topic | Author | Date |
| Is a PD78312A better than an 8051? | 01/01/70 00:00 | |
| yes it is if ... no it is not if... | 01/01/70 00:00 | |
| ROM Based | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Study the datasheets | 01/01/70 00:00 | |
| regular & slave | 01/01/70 00:00 | |
| ISP | 01/01/70 00:00 | |
| RD and PSEN | 01/01/70 00:00 | |
| Yes, that's the kind of trick... | 01/01/70 00:00 | |
| 1 M-bit memory | 01/01/70 00:00 | |
| One step at a time | 01/01/70 00:00 | |
| 17 address lines | 01/01/70 00:00 | |
| Wear | 01/01/70 00:00 | |
Maybe FRAM would solve that problem | 01/01/70 00:00 |