Search found 4 matches
- Tue Sep 06, 2022 2:01 am
- Forum: ESP-AT
- Topic: No "ready" message when using SPI AT
- Replies: 1
- Views: 3019
No "ready" message when using SPI AT
Hi, I see that after the ESP-AT (UART) firmware starts up and is ready for normal operation it emits a "ready" message out the UART. But I am using the ESP32-C3 AT SPI build, which is mostly working, but I don't seem to ever get a ready message, not after power up and not after issuing the AT+RST co...
- Tue Sep 06, 2022 1:42 am
- Forum: ESP-AT
- Topic: ESP AT SPI on C3
- Replies: 4
- Views: 5125
Re: ESP AT SPI on C3
Hi banjoluck You've probably figured this out by now but the handshake is positive edge triggered, not level triggered. So, the slave status should be read only when you see the handshake line transition from low to high. Check the source code for how it works. In the AT project search for the file ...
- Fri May 24, 2019 11:30 pm
- Forum: General Discussion
- Topic: UART hardware flow control
- Replies: 2
- Views: 5339
Re: UART hardware flow control
Thanks Helen, that's all I needed to know.
I couldn't try it because our custom board is yet to be manufactured and was checking if we should add any pull resistors on cts, but obviously not required.
Cheers.
I couldn't try it because our custom board is yet to be manufactured and was checking if we should add any pull resistors on cts, but obviously not required.
Cheers.
- Fri May 24, 2019 9:04 am
- Forum: General Discussion
- Topic: UART hardware flow control
- Replies: 2
- Views: 5339
UART hardware flow control
Hi, I plan on using the AT command firmware in an ESP32-WROOM-32D. It appears to have hardware flow control (RTS/CTS) enabled by default. I'm not using flow control and have left pins GPIO14 & 15 unconnected. My question is what is the default state of the CTS pin (GPIO15) and what is the sense of C...