Search found 15 matches

by JimmyPedersen
Sat Jan 05, 2019 9:53 am
Forum: ESP32 IDF
Topic: AWS IoT and HTTPS are mutually failed
Replies: 16
Views: 2573

Re: AWS IoT and HTTPS are mutually failed

I finally found the final answer. It was caused by the stack overflow. Which stack? I don't know. But when I reduced the size of each my stacks, it worked. I used stack high water mark to check some stacks, including the system stacks, I could reach out but found none. Anyway, it works now. Samson ...
by JimmyPedersen
Mon Dec 24, 2018 11:41 am
Forum: ESP32 Arduino
Topic: BUG: ESP32 dev board and reading sd card's (high power consumption + ESP32 hangs)
Replies: 3
Views: 966

Re: BUG: ESP32 dev board and reading sd card's (high power consumption + ESP32 hangs)

Could it be that the esp8266 powers up the SD card on init while the ESP32 powers it up on first access? The 18mA extra draw after using the SD card is probably from it being powered. If you want to stop that I would assume that you need to power down the SD card and then do a re-init the next time ...
by JimmyPedersen
Thu Mar 15, 2018 2:51 pm
Forum: General Discussion
Topic: Wifi / Bluetooth Problems with custom Board
Replies: 6
Views: 2030

Re: Wifi / Bluetooth Problems with custom Board

Just guessing but can it be a power supply issue?
Takes a lot more power to connect to an AP than to just scan for them.
Are you sure you can supply enough power to the ESP? Do you have sufficient decoupling next to the power pins?
Good luck
Jimmy
by JimmyPedersen
Sat Jan 20, 2018 9:58 pm
Forum: Report Bugs
Topic: ESP_LOGD crashes when a %s parameter is NULL
Replies: 1
Views: 1114

Re: ESP_LOGD crashes when a %s parameter is NULL

The following code snipplet results in a program crash: char *string = NULL; ESP_LOGD( TAG, "*** crash here %s", string ); Since the ESP_LOG * functions are often used for debugging, it is more than annoying when these functions themselves crash, because the parameters are not well defined. I would...
by JimmyPedersen
Sat Dec 30, 2017 1:35 pm
Forum: General Discussion
Topic: Happy Holidays! (W/ binary for your ESP32!)
Replies: 19
Views: 6602

Re: Happy Holidays! (W/ binary for your ESP32!)

Hi Tried it with an LOLIN32 v.1.0.0 board but I got no signal on the outputs (Checked with oscilloscope). Here's the output from the flashing: c:\Users\Jimmy\OneDrive\holidays2017>python c:\esp-idf\components\esptool_py\esptool\esptool.py --port com7 --baud 230400 write_flash 0 holidays2017.bin espt...
by JimmyPedersen
Thu Sep 28, 2017 8:07 pm
Forum: Showcase
Topic: ELLO 3M 'TROLL' computer
Replies: 11
Views: 4359

Re: ELLO 3M 'TROLL' computer

An alternative to Python you might want to check out is Mongoose-OS. https://mongoose-os.com Then you could write your code in, a somewhat reduced, Javascript (or c++) . Mongoose-os also has a lot of cool functionality like extendable RPC support, built in webserver, FOTA and tools to easily connect...
by JimmyPedersen
Fri Sep 22, 2017 3:34 pm
Forum: General Discussion
Topic: HWCrypto VS MbedTLS
Replies: 18
Views: 9360

Re: HWCrypto VS MbedTLS

Could it be that there is some over head associated with setting up the hw crypto unit that causes these poor numbers. What happens if you use bigger input and output blocks? For example En/De-crypt 256 bytes instead of 16.
by JimmyPedersen
Tue Aug 22, 2017 8:13 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 311
Views: 100652

Re: What would you like to see in The Next Chip?

* Better debugging functionality with more hardware breakpoints (For RAM as well as Flash(cache)). It would be great if some of these https://sysprogs.com/w/limitations-of-the-esp32-debugging/ limitations could be fixed, either in OpenOCD or in hardware if required. * A way to use the bluetooth (LE)...
by JimmyPedersen
Tue Jun 27, 2017 8:49 pm
Forum: General Discussion
Topic: gdb COM13: No such file or directory.
Replies: 8
Views: 4327

Re: gdb COM13: No such file or directory.

From my experience, i am using putty to monitor program and see when and where it crash. Then i am running gdb in msys window with xtensa-esp32-elf-gdb ./build/app-template.elf -b 115200 -ex 'target remote COM3' and can debug it. 13!=3 In your comments you write COM13 but in your working example yo...

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