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SIOC 實驗 4 ： Embedded SRAM 實驗

SIOC 實驗 4 ： Embedded SRAM 實驗. 郭明聰 / 陳慶瀚 MIAT 實驗室. 實驗目的. 瞭解 ARM Cortex-M3 與 SRAM 連接的架構，實驗存取 SRAM ，並透過 VCP 傳送到超級 終端 機 顯示 結果. 系統架構圖. Embedded SRAM. 20KBytes of embedded SRAM accessed (read/write) at CPU clock speed with 0 wait states. Memory Mapping. Keil 環境設定. 實驗： SRAM 資料存取.

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SIOC 實驗 4 ： Embedded SRAM 實驗

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  1. SIOC 實驗4：Embedded SRAM 實驗 郭明聰/陳慶瀚 MIAT實驗室

  2. 實驗目的 • 瞭解ARM Cortex-M3與SRAM連接的架構，實驗存取SRAM，並透過VCP傳送到超級終端機顯示結果

  3. 系統架構圖

  4. Embedded SRAM • 20KBytesof embedded SRAM • accessed (read/write) at CPU clock speed with 0 waitstates

  5. Memory Mapping

  6. Keil環境設定

  7. 實驗：SRAM資料存取

  8. UART Protocol LSB MSB Data

  9. 實驗說明 u8 A[128],B[128]; u8 *temp1=&A[0],*temp2=&B[0]; u32 *temp3=(u32 *)A,*temp4=(u32 *)B; int i; printf("Matrix A= \r\n"); for(i=0;i<128;i++) { *(temp1+i)=i; printf("%4o",*(temp1+i)); }printf("\r\n"); printf("8bit \r\n"); for(i=0;i<128;i++) { *(temp2+i)=*(temp1+i); State_flag= 1; Stopwatch_counter(); }printf("\r\n"); printf("32bit \r\n"); for(i=0;i<32;i++) { *(temp4+i)=*(temp3+i); State_flag= 2; Stopwatch_counter(); }printf("\r\n"); printf("8bit \r\n"); for(i=0;i<128;i++) { printf(“%4o”,*(temp2+i) ); } printf("\r\n"); printf("32bit \r\n"); for(i=0;i<128;i++) { printf("%4o",*(((u8*)temp4)+i)); } printf("\r\n");

  10. 實驗結果

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