Search found 87 matches

by markwj
Sat Jan 20, 2018 5:22 am
Forum: ESP32 IDF
Topic: Hash verification fails when I use ota feature, I need the bin file format。
Replies: 4
Views: 1665

Re: Hash verification fails when I use ota feature, I need the bin file format。

zhoupeng wrote:thank you,I have solved this problem
It would be helpful if you could explain the issue, and solution, to help others in the same situation.
by markwj
Wed Jan 17, 2018 5:49 am
Forum: General Discussion
Topic: OTA -- How to Compute SHA256 of the running firmware?
Replies: 4
Views: 1962

Re: OTA -- How to Compute SHA256 of the running firmware?

ESP_Angus wrote:I've added a feature request to add a function to read this SHA-256, as this will allow easy identification of the running image.
That would be very useful. Is there any timeline for this? Or reference to the feature request (GitHub issue?)
by markwj
Fri Jan 12, 2018 1:03 am
Forum: ESP32 IDF
Topic: Using SPI RAM from C++ programs
Replies: 1
Views: 1115

Using SPI RAM from C++ programs

Any suggestions for the best way to use SPI RAM from C++ programs? I tried setting the "SPI RAM access method" to "Make RAM allocatable using malloc() as well", and reducing "Maximum malloc() size, in bytes, to always put in internal memory" to 32 bytes, but get this crash on startup: #0 0x4008dfbc ...
by markwj
Wed Jan 10, 2018 11:50 pm
Forum: Hardware
Topic: WROOM-32
Replies: 6
Views: 3048

Re: WROOM-32

AnalogLamb also sells the ALB-WROOM – ESP32 , without psRAM with 4/8/16 MB Flash ($3.49–$4.69). Unfortunately uncertified and open top design, so not really suited to larger scale projects. The WROOM-32 module with PSRAM is interesting, but long lead time and just under US$10/module makes it too ex...
by markwj
Tue Jan 09, 2018 5:24 am
Forum: Hardware
Topic: WROOM-32
Replies: 6
Views: 3048

Re: WROOM-32

The lack of VDD_SDIO exposed on the WROVER modules, along with limited GPIOs, makes adding external flash troublesome. I really hope that Espressif can release WROOM-32 and WROVER modules with 16MB flash as a standard product. Given the difference in flash price (<$1), and OTA arrangements (factory ...
by markwj
Tue Jan 09, 2018 5:21 am
Forum: ESP32 IDF
Topic: More SDCARD issues
Replies: 7
Views: 3003

Re: More SDCARD issues

Resolved for me in ESP IDF 3.0b1 (or later). The issue seems to have been fixed by Espressif within the last month or two.
by markwj
Tue Jan 09, 2018 5:20 am
Forum: Hardware
Topic: ESP-WROOM-32 Flash Size
Replies: 15
Views: 19191

Re: ESP-WROOM-32 Flash Size

From what I can tell, this arrangement breaks SD CARD support. I ca't get any reply from Espressif on my other issues raised regarding this, but SDCARD works fine with default WROOM-32 module, but breaks when this external flash arrangement is used. Issue is actually caused by ANY flash size >4MB (...
by markwj
Fri Dec 15, 2017 2:31 am
Forum: General Discussion
Topic: ESP32 roam behaviour
Replies: 6
Views: 2286

Re: ESP32 roam behaviour

Maybe this is relevant:

https://github.com/espressif/esp-idf/releases
Support for all-channel scan, which can find best AP out of APs with same SSID
by markwj
Tue Dec 12, 2017 12:47 pm
Forum: Showcase
Topic: ESP32 with GSM modem - PPP over Serial (PPPoS) client example
Replies: 32
Views: 43070

Re: ESP32 with GSM modem - PPP over Serial (PPPoS) client example

Is it possible to put the PPPoS connection in "Hold" while I send AT commands to the modem? I know I can escape the PPP interface with the <pause>+++<pause> sequence, but I'd like to be able to send the AT command and resume the PPPoS stack. We're using SIM5360 and the GSM MUX functionality. This a...
by markwj
Wed Nov 29, 2017 1:07 am
Forum: ESP32 IDF
Topic: esp_log_set_vprintf not redirecting system_api, phy, event, ...
Replies: 5
Views: 2551

Re: esp_log_set_vprintf not redirecting system_api, phy, event, ...

ESP_igrr wrote:Indeed, there was such a bug, it was fixed in https://github.com/espressif/esp-idf/co ... 3869176c30.
It would be good if that could be applied to the 2.1 stable release, as it is impacting stable production builds.

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