moo / Mbed 2 deprecated bit-band

bit-band test

Dependencies:   mbed

Fork of bit-band by vics66@...

main.cpp

Committer:
moo
Date:
2014-06-02
Revision:
0:cd40794dcbe8
Child:
1:95cec43280f9

File content as of revision 0:cd40794dcbe8:

#include "mbed.h"

DigitalOut  led1(LED1);

extern "C" void HardFault_Handler() {__nop();}

int main() 
{
    volatile uint8_t *a1 = (uint8_t*)(0x10000000);  // SRAM先頭アドレス
    *a1 = (uint8_t)0x1;     // Memory windowsにて0x1になることを確認

    volatile uint8_t *a2 = (uint8_t*)(0x22000000);  // SRAM先頭アドレスをbit-bandで指定
    *a2 = (uint8_t)0x0;     // Memory windowsにて0x01になることを確認出来ない

    led1 = *a1;     // この行を実行するとHardFault_Handler()が実行される
    while (1);
}