| ??? 08/09/08 23:45 Read: times |
#157362 - Winbond / Nuvoton 8051s with ISP |
I am wondering if anyone has experience with RECENTLY manufactured 8051s from Winbond/Nuvoton that have In System / In Circuit programming capability. I had seen a post on another board from someone who claimed that all of their (Winbond/Nuvoton's) 8051s with this feature MUST first be programmed with a 'boot loader' in a parallel programmer because they are all shipped from the factory TOTALLY blank.
They have two areas of FLASH the regular 16/32/64/128K program space AND a separately addressable 4K FLASH space that is menat to hold the 'boot loader' download/programming code. Supposedly BOTH these FLASH areas are completely blnak in virgin devices. So, if you do not have a parallel programmer, you can not program it. I know this seems whacky. The person says he had pointed this out to the companies tech support, and supposedly was later told that they would begin shipping units with a default loader. I do not want to buy any until I know that this is now being done. Yes, contact the company. If they would just return my emails. I am mainly referring to the following parts, as they have the features I am looking for. W78E516B W78E365A W78ERD2A W78E516A / W78L516A W78L365A W79E632A / W79L632A W77E516A W77E532A / W77L532A Thank you ! |
| Topic | Author | Date |
| Winbond / Nuvoton 8051s with ISP | 01/01/70 00:00 | |
| still dosnt exist... | 01/01/70 00:00 | |
| Winbond Bootloader | 01/01/70 00:00 | |
| one side of the coin | 01/01/70 00:00 | |
| Erik - you miss the point | 01/01/70 00:00 | |
| DIY or change vendor | 01/01/70 00:00 | |
| Can you clarify ? | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
| My point was: | 01/01/70 00:00 | |
| not just winbond | 01/01/70 00:00 | |
| naah - and a SILabs promo | 01/01/70 00:00 | |
It's not personal then! | 01/01/70 00:00 |