Search found 1571 matches

by ESP_Sprite
Sun May 27, 2018 2:04 am
Forum: ESP32 IDF
Topic: how to redirect Debug LOGs to UART1 of ESP32
Replies: 1
Views: 25

Re: how to redirect Debug LOGs to UART1 of ESP32

make menuconfig -> component config -> ESP32-specific -> UART for console output
by ESP_Sprite
Sun May 27, 2018 1:58 am
Forum: Hardware
Topic: Current Limits
Replies: 7
Views: 150

Re: Current Limits

:lol: esp32 keeps us guessing. Do you have to Max out the drive strength setting to get there and what is the max current per domain? And what about rtc I/o mode? Yes, as the datasheet specifies, this is at max drive strength. RTC I/O is the same, I presume. We indeed also need to specify the curre...
by ESP_Sprite
Sat May 26, 2018 3:59 am
Forum: ESP32 IDF
Topic: LWIP- mulitple client example
Replies: 12
Views: 3769

Re: LWIP- mulitple client example

To be somewhat nitpicky: you'd still use the RTOS as the socket layer and the WiFi stack are depending on it. But if you're asking on how to do this without creating tasks for each client: you'd use something like select() to block until there's activity on any of the clients, then handle them appro...
by ESP_Sprite
Sat May 26, 2018 3:56 am
Forum: ESP32 IDF
Topic: ESP32 crashes if UART pins are changed in ble_spp_client example
Replies: 1
Views: 21

Re: ESP32 crashes if UART pins are changed in ble_spp_client example

What hardware do you use, and did you make sure the hardware doesn't already use GPIO4 and/or 5 for the flash? Rerouting a flash pin would cause the software to crash like this.
by ESP_Sprite
Sat May 26, 2018 3:40 am
Forum: Hardware
Topic: Current Limits
Replies: 7
Views: 150

Re: Current Limits

Actually, no. There was some fuzz about the output current handling capacity for a while, but as far as I know, the 40mA number is correct: the 12mA number we used initially was a holdover from the ESP8266, but for the ESP32 we improved the IO-pads, so they can handle a larger current now.
by ESP_Sprite
Wed May 23, 2018 8:32 am
Forum: Hardware
Topic: Maximum addressable memory expansion available
Replies: 2
Views: 111

Re: Maximum addressable memory expansion available

You are more-or-less right. If I recall correctly, we can actually have some more psram (up to 8MiB or so) but it cannot all be mapped into memory at the same time, and as it'd become quite difficult to use, we have no plans to add functionality for this to esp-idf.
by ESP_Sprite
Wed May 16, 2018 6:46 am
Forum: ESP32 IDF
Topic: What's the current state of drivers for the MMU?
Replies: 1
Views: 127

Re: What's the current state of drivers for the MMU?

No, sorry, the PID system is more-or-less untested at the moment.
by ESP_Sprite
Mon May 14, 2018 6:41 am
Forum: General Discussion
Topic: how to transmit video via tcp/ip
Replies: 4
Views: 211

Re: how to transmit video via tcp/ip

Hmm, 320*480*30fps*16bit is almost 80MBit/second... that's a fairly hefty data stream. I'm actually not even sure if the SPI bus is fast enough to handle this (unless you go for quad-spi) and I'm pretty sure you will not be able to maintain an 80MBit/sec stream in real WiFi circumstances.
by ESP_Sprite
Mon May 14, 2018 6:30 am
Forum: ESP32 IDF
Topic: How to measure pulse width on an HC-SR04
Replies: 2
Views: 117

Re: How to measure pulse width on an HC-SR04

I'm pretty sure you can use the RMT peripheral for that. The MCPWM block may also have a capture mode that allows you to capture pulse lengths, but I'm not 100% sure on that.

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