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Original question:
TMS320F28335: 两个cmd文件区别
在自己做bootloader时，需要在APP程序的开头和结尾写固定指纹信息，这个怎么通过CMD文件配置写入呢
你好，抱歉没有接触过这方面的操作。
不知道你的指纹信息是在程序运行过程中进行写入的，还是在boot的时候就要写入？
我是想通过APP程序，写一个CONST 数据在一个特定地址，比如如果是ARM 处理器就可以在程序中这么写
const APP_FingerStartPrintType SW_Infor __attribute__((at(0x08008100))) ={ .Version[0] = 0x01, .Version[1] = 0x01, .ConstantVal1 = Fingerprint_Constant1, .APPFigerEndAddr = 0x08014800};
这个结构体数据就会放在0x8008100的Flash地址下
问题解决了 使用
#pragma DATA_SECTION(AppSt_Infor,"FingerPrint");const APP_FingerStartPrintType AppSt_Infor ={ .Version[0] = 0x01, .Version[1] = 0x01, .ConstantVal1 = Fingerprint_Constant1, .APPFigerEndAddr = 0x00327f00};
实际感觉const不用也没问题 cmd PAGE 0 增加
PAGE 0: /* Program Memory */
FLASHD : origin = 0x320000, length = 0x007F00 /* APP */ FLASHC : origin = 0x328030, length = 0x007FD0 /* APP */ FLASHA : origin = 0x338000, length = 0x007F80 /* reserved for boot */
BEGIN : origin = 0x328020, length = 0x000002 /* APP ENTRY. */ START_FINGER : origin = 0x328000, length = 0x000020 /* App StartFinger */ END_FINGER : origin = 0x327f00, length = 0x000060 /* App EndFinger */
SECTIONS 增加
FingerPrint : > START_FINGER, PAGE = 0 FingerPrint_ed : > END_FINGER, PAGE = 0
开始编译有问题 是#pragma DATA_SECTION(AppSt_Infor,"FingerPrint");
FingerPrint必须用引号
