Moderator: igrr
- Wed Aug 05, 2015 4:14 pm
#25118
Thanks for the reply. The strange thing is, I haven't changed anything with my setup, and I was able to use the serial monitor before.
I'm doing the serial connection using the same FTDI cable I program with, which has worked in the past.
I'll post the wiring details when I get home and can confirm them.
I'm doing the serial connection using the same FTDI cable I program with, which has worked in the past.
I'll post the wiring details when I get home and can confirm them.
- Wed Aug 05, 2015 8:58 pm
#25138
Here's a list of what pins are wired to what (I've left out any pins not connected to anything):
GPIO0 - ground
GPIO2 - 3.3v
GPIO15 - ground
GND - ground
REST - FTDI green wire
CH_PD - 3.3v
VCC - 3.3v
GPIO13 - a 51ohm resistor in series with a red led was connected to GPIO13
The power is supplied by a 5v power supply running to a 3.3v linear regular.
And here's a few photos (note that the resistor/led aren't hooked up in these photos because they're on my other test rig):
http://imgur.com/a/XctJ7
kolban wrote:Could you post a schematic of your setup and ideally a picture?
What are you using for serial connection? What pins are connected to what other pins as it relates to the serial connector?
Neil
Here's a list of what pins are wired to what (I've left out any pins not connected to anything):
GPIO0 - ground
GPIO2 - 3.3v
GPIO15 - ground
GND - ground
REST - FTDI green wire
CH_PD - 3.3v
VCC - 3.3v
GPIO13 - a 51ohm resistor in series with a red led was connected to GPIO13
The power is supplied by a 5v power supply running to a 3.3v linear regular.
And here's a few photos (note that the resistor/led aren't hooked up in these photos because they're on my other test rig):
http://imgur.com/a/XctJ7
- Wed Aug 05, 2015 9:04 pm
#25139
Howdy,
I wonder what the "FTDI green wire" is connected to? Why have you not connected the REST to +ve? My understanding is that when REST goes to ground, the device resets. When you activate your USB -> UART, that may be driving REST low and resetting the device. I didn't see TX and RX described as connected in your description. What do you believe that the connection to REST is doing for you?
Neil
I wonder what the "FTDI green wire" is connected to? Why have you not connected the REST to +ve? My understanding is that when REST goes to ground, the device resets. When you activate your USB -> UART, that may be driving REST low and resetting the device. I didn't see TX and RX described as connected in your description. What do you believe that the connection to REST is doing for you?
Neil
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