FLASH data cannot be read as expected using Memory Mapped Mode I would like to read external FLASH data using Memory Mapped mode, which is a function of OctoSPI.The environment is as follows.
Use Board : nucleo l4r5ziIDE : Atollic TrueSTUDIO® for STM32, Built on Eclipse Neon.1a.(Version: 9.3.0)FLASH : W25Q64JV
Currently, when FLASH data is read using Memory Mapped Mode, some data is unreadable.Specifically, 0xFF, 0xCC, and 0x88 are read.I have already confirmed that the data can be read as expected when read in indirection mode.
The procedure is as follows.
1. Set for Memory Mapped Mode Specifically, the register settings are as follows.
2. Reading FLASH data The offset from 0x9000_0000 is stored in argv[2], and the program reads 256 bytes of data from that location.
static void flash_mng_cmdt_mem_mapped_read(int argc, char *argv[])
{
uint8_t *base_addr = (uint8_t*)0x90000000;
uint32_t i, j, k;
uint8_t data;
ofst = atoi(argv[2]);
base_addr = base_addr + ofst;
for (i = 0; i < 16;
