Search found 217 matches

by snahmad75
Thu Sep 20, 2018 8:56 am
Forum: General Discussion
Topic: Store static file in flash
Replies: 24
Views: 13088

Re: Store static file in flash

Hello sir, Can Any one give me example to uploading/ writing any data file or write key value on nvs partition after I do make flash to upload my code into OTA partition using any command line program. I saw before some one was uploading into fatfs flash partition web files using command line. Can e...
by snahmad75
Thu Sep 20, 2018 8:51 am
Forum: ESP32 IDF
Topic: External RAM enabled and performance tuning
Replies: 2
Views: 50

Re: External RAM enabled and performance tuning

Can anyone reply to me on this thread about usage of external ram. Does option 1 and option 2 effects remaining internal/external ram used by ESP32 system libraries ( WIFI, drivers). Can anyone explain to me. what are these options means CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=8192 CONFIG_SPIRAM_MALLOC_...
by snahmad75
Wed Sep 19, 2018 8:45 pm
Forum: ESP32 IDF
Topic: External RAM enabled and performance tuning
Replies: 2
Views: 50

External RAM enabled and performance tuning

I set my menuconfig. CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL = 4096 CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=50768 CONFIG_SPIRAM_USE_MALLOC=y Once internal ram free is less than 50768 than all allocation using new/alloc will start happening from external ram. As I understood. I need to keep 50-60 k interna...
by snahmad75
Wed Sep 19, 2018 7:57 pm
Forum: General Discussion
Topic: Store static file in flash
Replies: 24
Views: 13088

Re: Store static file in flash

Yes sir. The following tool from igrr can be used to build a "SPIFFS" image from a local file system: https://github.com/igrr/mkspiffs Once built, this can then be "flashed" using esptool.py to the flash space that we are using for SPIFFs storage. For example, I am using 1MByte ...
by snahmad75
Tue Sep 18, 2018 9:53 am
Forum: ESP32 Arduino
Topic: esp32 wifi ssid and password change wile fist time use
Replies: 3
Views: 688

Re: esp32 wifi ssid and password change wile fist time use

Is this Wifi manager for arduino or I can use for esp32 esp-idf
by snahmad75
Tue Sep 18, 2018 9:00 am
Forum: ESP32 IDF
Topic: Using a linker script in GCC to locate functions at specific memory regions
Replies: 3
Views: 104

Re: Using a linker script in GCC to locate functions at specific memory regions

Hi Angus, We have a need for an application to open and read an ESP32 BIN file to extract various data values, including the firmware version number. To achieve this, the application needs to look in a defined (external) Flash ROM address to find this table of values. We defined a MEMORY block (in e...
by snahmad75
Mon Sep 17, 2018 11:00 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 288

Re: Enable Time stamp on FatFs SD card

Thanks for reply. I will double check my f_utime function call in few days. sorry busy with other tasks.
by snahmad75
Mon Sep 17, 2018 9:13 pm
Forum: ESP32 IDF
Topic: Using a linker script in GCC to locate functions at specific memory regions
Replies: 3
Views: 104

Using a linker script in GCC to locate functions at specific memory regions

Hi, I did try to follow this example. https://www.silabs.com/community/mcu/32-bit/knowledge-base.entry.html/2016/03/07/using_a_linker_scrip-s5bu no luck. I just need to define my structure at specified RAM location ( fix address) on Esp32. Is it possible. how can i do it. kindly give me full example...
by snahmad75
Sun Sep 16, 2018 6:47 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 288

Re: Enable Time stamp on FatFs SD card

I am sure my file path is correct. Can you try yourself. Also I used this fatfs library. I manged to override get_fattime function and return my own date and time. but i cannot do on esp32. esp32 fatfs does not allow. compilers says it is already define. http://elm-chan.org/fsw/ff/doc/fattime.html k...
by snahmad75
Sun Sep 16, 2018 12:23 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 288

Re: Enable Time stamp on FatFs SD card

I am trying f_utime to st time stamp for file.

http://www.elm-chan.org/fsw/ff/doc/utime.html


not working for me.

I am getting FR_NO_PATH error.


Any idea?

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