ARM, RISC-V контроллеры

If flash address A0 is connected to the CPU bus address A1, A1->A2 etc. the code should be something like this: <c> #define NOR_FLASH_BASE_ADDR 0x80000000 #define make_flash_addr(addr) \ (volatile unsigned short *)(NOR_FLASH_BASE_ADDR | ((addr)<<1)) //---------------------------------------------------------------------------- int df_chk_flash_ic(void) { TN_INTSAVE_DATA unsigned short Vendor_ID; unsigned short Device_ID; unsigned long ReturnStatus; volatile int i; unsigned short * ptr; volatile unsigned short * addr; tn_disable_interrupt(); // Issue Software ID Entry command to SST39VF320X addr = make_flash_addr(0x5555); *addr = 0x00AA; // 1st write data 0x00AA to device addr 5555H addr = make_flash_addr(0x2AAA); *addr = 0x0055; // 2nd write data 0x0055 to device addr 2AAAH addr = make_flash_addr(0x5555); *addr = 0x0090; // 3rd write data 0x0090 to device addr 5555H for(i=0;i<70;i++); // delay for SST39VF320X addr = make_flash_addr(0); Vendor_ID = *addr; addr = make_flash_addr(1); Device_ID = *addr; ReturnStatus = (Vendor_ID << 16) | Device_ID; // Issue Software ID Exit command to put SST39VF320X into normal read mode. addr = make_flash_addr(0x5555); *addr = 0x00AA; // 1st write data 0x00AA to device addr 5555H addr = make_flash_addr(0x2AAA); *addr = 0x0055; // 2nd write data 0x0055 to device addr 2AAAH addr = make_flash_addr(0x5555); *addr = 0x00F0; // 3rd write data 0x00F0 to device addr 5555H tn_enable_interrupt(); for(i=0;i<70;i++); // delay for SST39VF320X if(ReturnStatus == 0x00BF235B) // 0x00BF235B for SST39VF3201 // 0x00BF235A SST39VF3202, return ERR_NO_ERR; return ERR_BAD_FLASH_INFO; } <c/> P.S: Sorry for the english - no russian keyboard at the moment.