My enhancements to the WiShield tree #3
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If user code is also using strncmp_P() this could save 28 additional byes of code space from the elimination of linking strncmp()
…fdef DEBUG. Old DEBUG code moved to DEBUG_VERBOSE. Saves (bytes): 260 code, 132 data, 1 bss = 392 PROGMEM, 133 RAM
…he code size due to linking strncpy() but I want to use that function later and it will come free then.
…memcpy/memcpy_P to use strncpy/strncpy_P. Saves 90 bytes of code. Also removed security_passphrase_len because it is only used in one place, saves 1 byte of RAM but means one less thing in the WiFi config block
…eed to waste the space of storing four compiled-in keys when only one can be used.
… some code space if you had both defined. This is prep for adding precalculated WPA keys.
…G_VERBOSE defined
This is a 29% throughput increase and it shouldn't cause any overflow because I reduced the RAM usage by 133 in the DEBUG commit alone (7f035e1)
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Wow, I'm really excited about the precalc feature! |
Includes support for size_t print functions (not void) and changed program code suffix (.pde to .ino).
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I started these enhancements 9 months ago before the WiShield became unavailable. I've ported them from my svn tree to git.
-- Merges all the WEP / WPA into one variable, called security_data. This saves on code space and the user can only use one at a time anyway
-- Adds WPA / WPA2 Precalc as a security type. This is a 32 byte precalculated key so the g2100 doesn't have to do it on every boot. Reduces startup time from 35 seconds to 6 seconds.
-- Reduces RAM (~150 bytes) and PROGMEM (~300 bytes) by optimizing some functions and removing the runtime verbose flag. You can still compile with verbose but not change it at runtime.
-- Take back some of that RAM I freed by increasing the UIP buffer size by 100 bytes. Increases throughput by 29%.