??? 09/27/11 11:32 Read: times |
#183892 - 485 removed? Responding to: ???'s previous message |
David Area said:
In the Eval board the reset pin is connected to a pushbutton and from the pushbutton to VDD. But I can reset the uC without use this pin. I only power off and on the power supply and it works... Is there not even a pulldown resistor? And do you remove the 485 chip or do you let it drive its RO line on RxD while your cable also tries to fight its way in? |
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 |