cortex-m3 ROM direct call

driverlib 용량이 적진 않아 많이 줄을줄 알았더니..

gcc - 129KB

rvmdk - -1714 KB

ewarm - 945 KB

개노가다 한거 치고는.. 의외로 감소량이 적네... 2KB..

노력대비로는 크다면 클 수 있는 용량이지만 내가 필요로 하는 용량을 충족하진 못하니.. ㅠㅠ

Program Size: Code=64900 RO-data=35872 RW-data=1372 ZI-data=16028  적용전

Program Size: Code=62764 RO-data=35684 RW-data=1372 ZI-data=16028  적용후

감소량

Code      2136 byte

RO-data   188 byte

일단.. 함수들을 ROM_ 접두를 붙이고

#include "driverlib/rom.h"

#define TARGET_IS_DUSTDEVIL_RA0

타겟을 define 해주면 되고

driverlib 에서 누락된 소스들 끌어와주고 그러면 된다(어?)

TARGET_IS_DUSTDEVIL_RA0 The application is being built to run on a DustDevil-class device, silicon revision A0. TARGET_IS_TEMPEST_RB1 The application is being built to run on a Tempest-class device, silicon revision B1. TARGET_IS_TEMPEST_RC1 The application is being built to run on a Tempest-class device, silicon revision C1. TARGET_IS_TEMPEST_RC3 The application is being built to run on a Tempest-class device, silicon revision C3. TARGET_IS_TEMPEST_RC5 The application is being built to run on a Tempest-class device, silicon revision C5. TARGET_IS_FIRESTORM_RA2 The application is being built to run on a Firestorm-class device, silicon revision A2. TARGET_IS_BLIZZARD_RA1 The application is being built to run on a Blizzard-class device, silicon revision A1. [링크 : http://www.ti.com/lit/ug/spmu019p/spmu019p.pdf]

그리고는 ROM_ 접두를 붙여주면 끝

단, target class나 함수에 따라 지원하지 않는 녀석들도 있으니 주의