liuzhifu 1e9fc9f8f1 components: lwip - modify HEAP_HIGHWAT from 6K to 20K ... Since esp32 has much more memory than esp31B, modify the HEAP_HIGHWAT from 6K to 20K. Notes: HEAP_HIGHWAT is used for tcp/udp tx flow control, if socket task detects that the free heap memory is less than HEAP_HIGHWAT, it stops to trasmitting until the free heap memory is greater than HEAP_HIGHWAT		2016-09-01 15:17:50 +08:00
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lwip	components: lwip - modify HEAP_HIGHWAT from 6K to 20K	2016-09-01 15:17:50 +08:00