Utilizar memoria flash para tabela de CRC #38
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Como a tabela de CRC consome muita memoria SRAM, sendo apenas leitura eu fiz modificações para que ela salve esta tabela na flash, poupando 20% de memória SRAM de um ATmega328P <Arduino UNO>. Interessantemente também poupa memória FLASH. Para mais informações https://www.nongnu.org/avr-libc/user-manual/group__avr__pgmspace.html https://www.arduino.cc/reference/pt/language/variables/utilities/progmem/
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Como a tabela de CRC consome muita memoria SRAM, sendo apenas leitura eu fiz modificações para que ela salve esta tabela na flash, poupando 20% de memória SRAM de um ATmega328P . Interessantemente também poupa memória FLASH.
Para mais informações
https://www.nongnu.org/avr-libc/user-manual/group__avr__pgmspace.html
https://www.arduino.cc/reference/pt/language/variables/utilities/progmem/