Wi-Fi Combo

[NiMc_1688136]

SDK 6.2.0

CYW43907

FreeRTOS + lwIP

I have been using wiced_tcp_send_packet without any issues until i tried to send larger packets. I then switched to wiced_tcp_send_buffer and it works great in an example application with no TLS but once TLS is added and the packet is large enough to be fragmented, I run into a data_abort exception. The best that I can tell, the problem occurs in wiced_tcpip_common.c, at line 213, during the free call.

        if (enc_buf_allocated == WICED_TRUE)
        {
            free(enc_output_buf);
            enc_output_buf = NULL;
        }

Has anyone seen this?

The packet i was attempting to send was between 1800 and 1900 bytes.

[PriyaM_16 · Accepted solution]

Have you tried increasing the packet pool size:

GLOBAL_DEFINES += TX_PACKET_POOL_SIZE=xx \

                     RX_PACKET_POOL_SIZE=xx \

                     WICED_TCP_TX_DEPTH_QUEUE=xx \

                     WICED_TCP_RX_DEPTH_QUEUE=xx

Choose xx to be a value greater then your current value.

[NiMc_1688136]

Thanks for the response Priya. I have not made the queues/pools larger through my makefile so the application is using the default values.

This is simple enough for me to test it today. I will follow up with the results.

[PriyaM_16]

Hello,

Were you able to send large packets by increasing the packet pool size?