I'd like know if there are any constraints like address that it can read. The only known limitation is that the address has to by 4-Bytes aligned. Assuming that I should pass address starting at the beginning of the physical SPI chip (0x0);
The thing is that it returns a garbage while spi_flash_read() works correctly. But it still returns a zero = a success.
UINT32 SPIRead(uint32_t addr, UINT32 *dest, size_t size);
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