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Sending large amounts of data over SPWF01SA

Question asked by Matti Sillanpää on Apr 26, 2017
Latest reply on May 3, 2017 by Gerardo Gallucci

Hi.

 

 

So I'm trying to send large amount of data to server (~200kB). I can send and receive smallish amounts ok (<2k), however at 3k the send fails. I'm sending data in 1000byte blobs to respect the 1021byte limit in the socket code.

 

I've added delays and tried smaller sends also, but no luck so far. I coudn't find any applicaple callback to syncronize fe 2k transfers.

 

How should I handle this sort of situation?

+WIND:1:Poweron (170111-665d284-SPWF01S)
+WIND:13:ST SPWF01SA1 IWM: Copyright (c) 2012-2016 STMicroelectronics, Inc. Al.
+WIND:3:Watchdog Running
+WIND:0:Console active
+WIND:32:WiFi Hardware Started

+WIND:2:Reset
+WIND:1:Poweron (170111-665d284-SPWF01S)
+WIND:13:ST SPWF01SA1 IWM: Copyright (c) 2012-2016 STMicroelectronics, Inc. Al.
+WIND:3:Watchdog Running
+WIND:0:Console active
+WIND:46:WPA: Crunching PSK...

+WIND:32:WiFi Hardware Started
+WIND:21:WiFi Scanning
+WIND:35:WiFi Scan Complete (0x0)
+WIND:19:WiFi Join:xx.xx.xx.xx.xx.xx
+WIND:25:WiFi Association with 'XXXX' successful
+WIND:51:WPA Handshake Complete
+WIND:24:WiFi Up:192.168.0.100

>>Socket Open OK
>>Socket ID: 0

Writing 1000 bytes to socket, left 128825
<<OK
>>Socket Write OK
Writing 1000 bytes to socket, left 127825
<<OK
>>Socket Write OK
Writing 1000 bytes to socket, left 126825
>>Socket Write FAIL
+WIND:55:Pending Data:0:ENC
+WIND:58:Socket Closed:0

Reached SockON_Data_Length

Data Receive Callback...
AT+S.SOCKR=0,313
HTTP/1.1 400 Bad Request
Server: Server
Date: Wed, 26 Apr 2017 12:29:29 GMT
Content-Type: text/html
Content-Length: 167
Connection: close

As the server reponds with the bad request something is sent.

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