Search found 90 matches
- Mon Jan 29, 2018 5:28 am
- Forum: Hardware
- Topic: ESP WROVER Flash Size
- Replies: 6
- Views: 9154
ESP WROVER Flash Size
Similar to the topic for WROOM-32, but for WROVER. We can add an external 1.8v flash, external 1.8v regulator (as VDD_SDIO is not exposed), but the issue is the CS line for external flash. Given that GPIO16 and GPIO17 (the last two remaining GPIOs in VDD_SDIO domain) are used for PSRAM inside the mo...
- Sat Jan 20, 2018 6:05 am
- Forum: General Discussion
- Topic: What would you like to see in The Next Chip?
- Replies: 426
- Views: 783375
Re: What would you like to see in The Next Chip?
Short list of top 5: More GPIO (in both 3.3v and VDD_SDIO domains). More internal RAM, or a way to move more to external PSRAM. A chip with 520KB RAM, bluetooth, and wifi is great; but how much of that RAM is available once Wifi and Bluetooth plus a reasonable set of functions are enabled? 20%? Modu...
- Sat Jan 20, 2018 5:35 am
- Forum: Hardware
- Topic: Need help to connect external 16 MB SPI Flash Memory on ESP32-WROVER Kit
- Replies: 34
- Views: 64909
Re: Need help to connect external 16 MB SPI Flash Memory on ESP32-WROVER Kit
We had finalized to use 1.8 v supported external memory and also finalized to change default memory as external memory instead of internal memory. So, with that we can use external memory as well as 4 MB PSRAM for more memory allocation purpose. Let me know if need any help regarding this as e had ...
- Sat Jan 20, 2018 5:22 am
- Forum: ESP-IDF
- Topic: Hash verification fails when I use ota feature, I need the bin file format。
- Replies: 5
- Views: 7674
Re: Hash verification fails when I use ota feature, I need the bin file format。
It would be helpful if you could explain the issue, and solution, to help others in the same situation.zhoupeng wrote:thank you,I have solved this problem
- Wed Jan 17, 2018 5:49 am
- Forum: General Discussion
- Topic: OTA -- How to Compute SHA256 of the running firmware?
- Replies: 4
- Views: 6631
Re: OTA -- How to Compute SHA256 of the running firmware?
That would be very useful. Is there any timeline for this? Or reference to the feature request (GitHub issue?)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.
- Fri Jan 12, 2018 1:03 am
- Forum: ESP-IDF
- Topic: Using SPI RAM from C++ programs
- Replies: 3
- Views: 5456
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 ...
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...
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 ...
- Tue Jan 09, 2018 5:21 am
- Forum: ESP-IDF
- Topic: More SDCARD issues
- Replies: 7
- Views: 10097
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.
- Tue Jan 09, 2018 5:20 am
- Forum: Hardware
- Topic: ESP-WROOM-32 Flash Size
- Replies: 15
- Views: 43539
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 (...