Search found 29 matches

by jimbob
Sun Nov 13, 2016 1:50 pm
Forum: Showcase
Topic: [Info] GPS decoding on the ESP32
Replies: 2
Views: 13035

Re: GPS decoding on the ESP32

Thanks -- I want to put an ESP32 and a GPS in my car so it can sync when it comes to my home/office WiFi so I can use it to track mileage etc. I think this will definitely get used!
by jimbob
Thu Nov 03, 2016 5:04 pm
Forum: ESP-IDF
Topic: [Solved] Using the RMT peripheral ...
Replies: 18
Views: 23027

Re: Using the RMT peripheral ...

Thanks, I'd seen the list -- I was trying to finish my hardware design and qualify the ESP32 to sign off as a suitable part and wondered if I could save some time! It's also a very big list which I'd be impressed if all of it came out by end of Nov! -- Though what Espressif are doing and have achiev...
by jimbob
Tue Nov 01, 2016 9:46 am
Forum: ESP-IDF
Topic: [Solved] Using the RMT peripheral ...
Replies: 18
Views: 23027

Re: Using the RMT peripheral ...

Did you (or anyone one else) make any progress on this? I was thinking of picking it up. Do we need to fiddle with these bits to make the state machine work? DPORT_RMT_CLK_EN DPORT_RMT_CLK_RST Specifically to those who have access to the detailed docs of the internals, can you tell us if there is an...
by jimbob
Thu Oct 27, 2016 10:06 pm
Forum: ESP-IDF
Topic: I2C example wanted
Replies: 9
Views: 15175

Re: I2C example wanted

thanks -- that's where I was looking. I foolishly believed that when I read the line that set pins as output they were set just as outputs... ;) The following two lines in https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/esp32-hal-gpio.c make the magic difference! and enable inputs...
by jimbob
Mon Oct 24, 2016 11:15 am
Forum: ESP-IDF
Topic: I2C example wanted
Replies: 9
Views: 15175

Re: I2C example wanted

I'm trying to get I2C up and running and struggling. I'm trying to send various sequences, but basically for my attempts I just get a pulse on scl followed by a pulse on sda and then both lines stay low. Firstly, what should I be setting my pins as? Even though I2C lines can be considered bi-directi...
by jimbob
Thu Oct 20, 2016 7:50 am
Forum: ESP-IDF
Topic: How to use gpio_isr_register?
Replies: 46
Views: 32273

Re: How to use gpio_isr_register?

Thanks @rudi for the example. Just a note of caution, I haven't triple checked yet but I think the example will only work for certain GPIO pins. I think the first argument of gpio_isr_register lists the interrupt number -- and from the listing from soc.h, some of them are already used. In the exampl...
by jimbob
Fri Oct 07, 2016 5:40 pm
Forum: Hardware
Topic: strapping Pin clarification
Replies: 14
Views: 15882

Re: strapping Pin clarification

Thanks -- that's a great help.
by jimbob
Thu Oct 06, 2016 1:56 pm
Forum: Hardware
Topic: strapping Pin clarification
Replies: 14
Views: 15882

Re: strapping Pin clarification

Thanks, So just to check we don't have to worry about the mention of GPIO4 at the top of page 9? However, I'm now puzzled how does the ESP32 get set to boot in SDIO slave mode? Basically, I'm creating a design and want to know that states of IO pins connected to other devices aren't going to cause t...
by jimbob
Tue Oct 04, 2016 4:47 pm
Forum: Hardware
Topic: strapping Pin clarification
Replies: 14
Views: 15882

strapping Pin clarification

In table 2: Strapping pins on page 9 of https://espressif.com/sites/default/fil ... eet_en.pdf is MTDO duplicated rather than a GPIO4 entry? If so,which does MTDO really effect, the U0TX log or the SDIO slave config?

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