| ??? 05/18/10 06:47 Read: times |
#175993 - did you read my remark above... Responding to: ???'s previous message |
... where I told that some of the Atmel chips (e.g. AT89S8253) do have the parallel programming specs published?
Actually, for the vast majority of FLASH-based chips, as all the critical items (FLASH programming timing, high voltage generation - the 12V you need to supply is only a logic level to trigger the programming mode) are on chip, so it's none the different from the serial (ISP) programming. In most of the cases, there are no longer the issues which made the bad flavour of homebrew parallel programmers in the EPROM era; this is just that the manufacturers don't want the amateurs to tinker around. JW |
| Topic | Author | Date |
| programing on chip flash? | 01/01/70 00:00 | |
| of course, you are, | 01/01/70 00:00 | |
| parallel programming | 01/01/70 00:00 | |
| thanks everyone | 01/01/70 00:00 | |
| Not exactly fair | 01/01/70 00:00 | |
| too deep | 01/01/70 00:00 | |
| Internal voltage doublers in some chips for IAP support | 01/01/70 00:00 | |
| hm | 01/01/70 00:00 | |
| actually ... | 01/01/70 00:00 | |
| why to do this? I cant understand :-( | 01/01/70 00:00 | |
| the Manzi book | 01/01/70 00:00 | |
| You mean, "Mazidi" | 01/01/70 00:00 | |
| agreed, and ... | 01/01/70 00:00 | |
| ISP before IAP? | 01/01/70 00:00 | |
| A question of driving force | 01/01/70 00:00 | |
| baloney | 01/01/70 00:00 | |
| programming on chip flash? | 01/01/70 00:00 | |
| If only it were that simple... | 01/01/70 00:00 | |
did you read my remark above... | 01/01/70 00:00 |