Search found 27 matches

by sintech
Tue Dec 12, 2017 8:29 pm
Forum: General Discussion
Topic: RMT settings clarification
Replies: 3
Views: 6313

Re: RMT settings clarification

Thanks for sharing what you found out! the RMT_MEM_TX_WRAP_EN applies to all channels and loop around occurs at the end of transmission, i.e when any of the RMT channel buffers hits a 0 length transmission value the channel will loop back to the beginning. For some reason the interrupt that fires at...
by sintech
Mon Dec 11, 2017 3:20 pm
Forum: General Discussion
Topic: RMT settings clarification
Replies: 3
Views: 6313

RMT settings clarification

What is the diference between RMT_REG_TX_CONTI_MODE and RMT_MEM_TX_WRAP_EN mode? Should I activate both for continuous mode? Because enabling only RMT_REG_TX_CONTI_MODE in channel config, does not activate continuous sending, while RMT_MEM_TX_WRAP_EN does. As per my understanding, RMT_CHn_TX_THR_EVE...
by sintech
Mon Oct 09, 2017 5:33 am
Forum: ESP-IDF
Topic: PSRAM support status
Replies: 30
Views: 38259

Re: PSRAM support status

Yes, you are 100% right. It works now.
Perhaps I thought that direct writing to some memory regions does not influence allocations made by malloc.
by sintech
Sun Oct 08, 2017 9:30 pm
Forum: ESP-IDF
Topic: PSRAM support status
Replies: 30
Views: 38259

Re: PSRAM support status

Hello, I have some issues with SPI RAM on ALB-WROVER module. "SPI RAM config" in menuconfig is set to "Make RAM allocatable using heap_caps_malloc". But when I try to do "heap_caps_malloc" in my program I get the "Guru Meditation Error of type LoadStoreAlignment". My pretty simple code is based on s...
by sintech
Tue Sep 05, 2017 7:35 am
Forum: ESP-IDF
Topic: PSRAM support status
Replies: 30
Views: 38259

Re: PSRAM support status

Yesterday I compiled hello world example using latest esp-idf to run it on ALB-WROVER module. PSRAM was successfully initialized and tested by internal functions. I have noticed that currently PSRAM only mapped to ESP32 memory space but not available via heap to be malloced. Looking forward for new ...
by sintech
Tue Aug 01, 2017 12:19 pm
Forum: General Discussion
Topic: ESP32 with small PCB searched.
Replies: 13
Views: 17520

Re: ESP32 with small PCB searched.

rudi ;-) wrote: nice - you know, that the modul can't connect to a breadboard?
( double pinheader pins left and right are nice but they are different signals from neighboring pin)
You can solder two outer rows of pins on bottom side of board and two inner rows on top ;)
by sintech
Wed Jul 12, 2017 2:20 pm
Forum: ESP-IDF
Topic: SD card interface high speed mode
Replies: 12
Views: 37412

Re: SD card interface high speed mode

ESP_igrr, is there any performance improvement in 1 bit mode?
by sintech
Tue Jul 11, 2017 11:06 am
Forum: General Discussion
Topic: Favorite IDE for debugging -- Eclipse, Visual Studio, or other?
Replies: 14
Views: 25049

Re: Favorite IDE for debugging -- Eclipse, Visual Studio, or other?

If you could name three key things that make the trouble, what would it be?
Can I name one and only?
Inability to use JTAG and SDIO/HSPI at the same time due to intersection of pin functions.
by sintech
Mon Jun 26, 2017 8:49 am
Forum: General Discussion
Topic: ESP WROOM 32 newbie questions
Replies: 2
Views: 5156

Re: ESP WROOM 32 newbie questions

So, question 1: Yes, the same antenna. You can use BT and WIFI at the same time. 3: Its seems that the ESP32 has two cores. Can I program those cores to run totally different code with Arduino? If yes, can I exchange info (let's say simple serial data) between those cores internally? Any example? A...
by sintech
Wed Jun 07, 2017 7:53 am
Forum: ESP-IDF
Topic: Core board OK, naked wroom-32 bad - what am I missing?
Replies: 8
Views: 12780

Re: [resolved - bad power] Re: Core board OK, naked wroom-32 bad - what am I missing?

eyaleb wrote:It is fed directly by a USB<->TTL module that never had an issue.
That was my problem too. ;)
The peaks in power consumption that you observe might be caused by wifi calibration process.