| ??? 09/27/11 11:03 Read: times |
#183890 - So how do you drive RESET? Responding to: ???'s previous message |
David Area said:
I don't can drive the reset input. I force the reset disconnecting and connecting the power. This works also in the evaluation board (I put PSEN to GND and disconnect the power and connect again. The bootloader works). Your comment above would kind of indicate that the PSEN signal is the same as the reset. But they are two separate signals. Your schematics don't show that you have connected the RESET signal to any test point or pin header. So exactly how are you forcing the reset? And why do you feel a need to force the reset signal, instead of connecting it using a 3-pin reset supervisor or at the very least an external RC circuit? Does your processor have internal logic for delaying a reset after power-on? |
| Topic | Author | Date |
| ADUC 845 Bootloader | 01/01/70 00:00 | |
| TTL to 232 cable? | 01/01/70 00:00 | |
| RE:TTL to 232 cable? | 01/01/70 00:00 | |
| So how do you drive RESET? | 01/01/70 00:00 | |
| RE: So how do you drive RESET? | 01/01/70 00:00 | |
| 485 removed? | 01/01/70 00:00 | |
| RE:485 removed? | 01/01/70 00:00 | |
| yes, remove 485 | 01/01/70 00:00 | |
| RE:yes, remove 485 | 01/01/70 00:00 | |
| looks like a "throw together" | 01/01/70 00:00 | |
| RS485 removed... | 01/01/70 00:00 | |
| cable still working? | 01/01/70 00:00 | |
| RE:cable still working? | 01/01/70 00:00 | |
| Maybe I've missed something ... | 01/01/70 00:00 | |
| What? | 01/01/70 00:00 | |
| Sorry ... I hit "send" before I entered my message | 01/01/70 00:00 | |
| No more time today | 01/01/70 00:00 | |
| well, it seems you did it again | 01/01/70 00:00 | |
| It doesn't look that way from here ... | 01/01/70 00:00 | |
| ah an edit | 01/01/70 00:00 | |
| Yes ... I noticed a typo and it went from there. | 01/01/70 00:00 | |
| In studying the Data Sheet for this part | 01/01/70 00:00 | |
EA needs pull up | 01/01/70 00:00 |