Search found 27 matches

by i_am_mrp
Sat Oct 28, 2017 4:26 am
Forum: General Discussion
Topic: JTAG needed pins MTDI and MTDO are also strapping pins
Replies: 1
Views: 5569

JTAG needed pins MTDI and MTDO are also strapping pins

Won't using these pins with JTAG interfere with their strapping functions? Per documentation the MTDI controls the flash voltage VDD_SDIO which seems pretty important to not interfere with. Also MTDI is internally pulled-up and MTDO is internally pulled-down. This also seems to potentially cause tro...
by i_am_mrp
Fri Oct 27, 2017 9:05 am
Forum: General Discussion
Topic: uSD card using SPI and fwrite() consistently fails after short operating period
Replies: 6
Views: 11287

uSD card using SPI and fwrite() consistently fails after short operating period

IDF: pull/update of latest on: Oct 25, 2017 -- 5pm EST Code: Modified IDF example Board: Adafruit ESP32 Huzzah Feather - silicon rev: 1 SD Breakout: Adafruit MicroSD card breakboard+ pid: 254 (2 test boards) SD Cards: SanDisk 8GB Class-4 SDHC (2 test cards) All breakout-board & SD-card physical test...
by i_am_mrp
Thu Oct 19, 2017 6:09 am
Forum: General Discussion
Topic: gpio_get_level() always returns 0 if pin mode is GPIO_MODE_OUTPUT?
Replies: 2
Views: 13304

gpio_get_level() always returns 0 if pin mode is GPIO_MODE_OUTPUT?

When a pins mode is GPIO_MODE_OUTPUT and you call gpio_set_level(pin, 1), gpio_get_level(pin) always returns 0. Reading a pins value should not require it to be input or input-output mode, correct? I have verified the output pins voltage does go high when set, but gpio_get_level(pin) says it is 0. N...
by i_am_mrp
Sun Oct 01, 2017 2:41 am
Forum: General Discussion
Topic: WiFi can't connect to network with hidden SSID
Replies: 2
Views: 7100

Re: WiFi can't connect to network with hidden SSID

Ok, thank you for quick response and recommendation.

I will enter it as a bug as suggested.

MrP
by i_am_mrp
Sun Oct 01, 2017 2:26 am
Forum: General Discussion
Topic: WiFi can't connect to network with hidden SSID
Replies: 2
Views: 7100

WiFi can't connect to network with hidden SSID

I am using ESP-IDF v2.1 and Espressif ESP32 Development Board - Developer Edition I am unable to WiFi connect to an AP with hidden SSID. When I change the router to advertise the SSID, then the code works. Is there some option/configuration of the code that allows for this? Note I am not talking abo...
by i_am_mrp
Fri Sep 29, 2017 7:47 am
Forum: General Discussion
Topic: phy: logging randomly emits garbage for timestamp portion
Replies: 2
Views: 4046

Re: phy: logging randomly emits garbage for timestamp portion

Thank you for quick reply. I am using the SparkFun ESP32 Thing board silicon v 0. I have it properly powered (metered power supply, the uUSB cable and sometimes by battery). I will follow up your hunch on a power issue. I have successfully used these boards for over a dozen other examples/tests (GPI...
by i_am_mrp
Thu Sep 28, 2017 9:45 am
Forum: General Discussion
Topic: phy: logging randomly emits garbage for timestamp portion
Replies: 2
Views: 4046

phy: logging randomly emits garbage for timestamp portion

The "phy" logging activity randomly (almost always) emits garbage for what appears to be formatting of the time-portion of the reported timestamp.I have the output from the monitor below. This is very problematic since those junk characters often disrupt/stop the output. I am using "screen" as well ...