Other Parts Discussed in Thread: AM2432
Hi there,
We encounter a problem in a TCP based communication using mcu_plus_sdk_am243x_08_05_00_24.
We implement a Modbus TCP Server above an AM2432 based custom board.
The Modbus TCP Server answers TCP segments with null payload (instead of the right Modbus TCP application data):
Only after some Modbus TCP queries, the Modbus TCP Server starts to send correct Modbus TCP responses. However, these responses belong to the first Modbus TCP queries, as if the Modbus TCP Server responds late.
Using the writeback of cache before send the TCP segment (a fix identical to that suggested for UDP datagram in the thread AM2432: Lwip concatenated pbuf isn't trasmitted complete), the Modbus TCP Server works fine, that means it responses with correct Modbus TCP responses from the first Modbus TCP query.
We want to know if this is a known bug from TI side and if it will be fixed in SDK 8.6.
Thanks.
Regards,
Matteo