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added some notes on EEPROM speed

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This commit is contained in:
Andrew Tridgell 2012-02-12 19:21:49 +11:00
parent e7174bc649
commit 81e52e43c1
1 changed files with 10 additions and 0 deletions
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10
Tools/CPUInfo/output.txt
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@ -39,3 +39,13 @@ idiv32 37.71 usec/call
memcpy128 56.76 usec/call
memset128 49.71 usec/call
delay(1) 1005.14 usec/call
Additional notes:
eeprom_read_byte: 2 usec/call
eeprom_write_byte: first call costs 5 usec, each subsequent byte
costs 3480 usec as it waits for the EEPROM to be
ready from the previous byte
pgm_read_byte: 0.5 usec per byte