RE: External SPI flash read skipping one byte every two

Edvin — Tue, 12 Jun 2018 12:29:12 GMT

Hello,

I can't see any obvious errors from the snippets that you have sent.

I can't see anything wrong in your read_data() function. It seems to run through fluently.

However, I don't know what's going on inside MX25_READ(...);

Could you please give the functions that you didn't describe, such as IsFlash4Byte() (what does it return), CS_Low(), CS_High(), SPI_TRANSFER(), SendFlashAddr(),SPI_READ, and what value does byte_length have?

If the case is actually that the application can't handle the SPI fast enough, can you try to read more than one byte at the time?

SPI_READ(0xFFFF, 2);

Best regards,

Edvin