ESP8266 Community Forum

- Fri Sep 11, 2015 7:31 pm #28886 This is very nice. I am glad to see that basic is not a dead language and other people have been thinking about it.

Just to clarify this a compiler. The project I am working on is an interpreter.

Serial terminal in the chrome browser see https://serialTerminal.com

http://esp8266basic.com
A BASIC interpreter for your ESP

Working now on Autodrop3d. A 3d printer with automatic part ejection system. https://autodrop3d.com

- Fri Sep 11, 2015 8:03 pm #28888

How to find out the available disk space to save the maximum file?

I am not sure what you are asking. Can you explain in more detail what you are wanting to know?

ZBasic built-in programmer not check types of Flash on modules ESP8266?

That is correct. The default is 512KB of Flash. If you have a 2MB Flash you can use the compiler directive shown below near the beginning of the main .bas file as described in the manual.

Code: Select allOption DeviceParameter FlashSize "2M"

Last edited by dkinzer on Sat Sep 12, 2015 10:29 am, edited 1 time in total.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

- Sat Sep 12, 2015 6:58 am #28897

How to find out the available disk space to save the maximum file?

I am not sure what you are asking. Can you explain in more detail what you are wanting to know?

1) How to get free space Spiffs to save the file?
Example: The user sends a file/data by TCP. How to send in advance the maximum length of the receive data to record them on Spiffs?
2) What is the speed of writing data to the disk when SPIFFS 8MB of free space to 20%? Less than 1 KB / s? Opening a file more than a few seconds? Throw this Spiffs. SPIFFS = gruesome file system
PS: Standard recording speed flash (+ erase) on ESP8266 = 160...200 kilobytes per second. (WiFi - > HTTP -> Content-Type:multipart/form-data) https://www.youtube.com/watch?v=TOnhBxb8wsQ

ZBasic built-in programmer not check types of Flash on modules ESP8266?

That is correct. The default is 512KB of Flash. If you have a 2MB Flash you can use the compiler directive shown below near the beginning of the main .bas file as described in the manual.

Code: Select allOption FlashSize "2M"

Which option for W25Q128FV Flash? Option FlashSize "16M" ?

- Sat Sep 12, 2015 10:28 am #28913

How to find out the available disk space to save the maximum file?

There is no ZBasic System Library routine to get the SPIFFS free space. That is a good thing to add.

It is possible to add C code to a ZBasic app so one could add functionality as needed. However, the SPIFFS control structure currently isn't public - another good idea to add.

SPIFFS = gruesome file system

If you have a better one, you can add it to your ZBasic app and use it in place of SPIFFS. You would need to define your own interface to it but you can make external functions available to ZBasic by importing the definitions. This advanced topic is discussed in section 6.8 of the ZBasic Language Reference.

Which option for W25Q128FV Flash?

I misstated the option to specify the Flash size, it is actually "Option DeviceParameter FlashSize" and for the Flash chip you referred to it would be

Code: Select allOption DeviceParameter FlashSize "16M"

Other compiler directives are explained in the manuals.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net