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add -DBEARSSL_SSL_BASIC

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When using TLS, this flag avoids loading all the Elliptic Curves algorithm, and saves ~45KB of flash. Anyways, Elliptic Curves are far too slow for ESP8266 and the handshake would take more the 5 seconds. With this flag we limit to RSA algorithms which are faster.
Thx for the tipp @s-hadinger
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Jason2866 2019-05-11 14:19:54 +02:00 committed by GitHub
parent bc211e8c78
commit 3d08514060
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1 changed files with 2 additions and 1 deletions
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platformio.ini
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@ -71,7 +71,8 @@ platform = espressif8266@~2.0.4
build_flags = ${esp82xx_defaults.build_flags} build_flags = ${esp82xx_defaults.build_flags}
-Wl,-Teagle.flash.1m.ld -Wl,-Teagle.flash.1m.ld
; Code optimization see https://github.com/esp8266/Arduino/issues/5790#issuecomment-475672473 ; Code optimization see https://github.com/esp8266/Arduino/issues/5790#issuecomment-475672473
-O2 -O2
-DBEARSSL_SSL_BASIC
; lwIP 1.4 ; lwIP 1.4
; -DPIO_FRAMEWORK_ARDUINO_LWIP_HIGHER_BANDWIDTH ; -DPIO_FRAMEWORK_ARDUINO_LWIP_HIGHER_BANDWIDTH
; lwIP 2 - Low Memory ; lwIP 2 - Low Memory