Due to severe limitations in the Arduino SPI API, the Catena_Mv25v8035f::program() routine not only takes a writable buffer as input, but actually modifies it with the data shifted in from the SPI bus while writing.
Change to use a bounce buffer. (Longer term, add an API like the bootloader's, which stuffs zeroes if TX buffer pointer is NULL and discards input if RX buffer pointer is NULL.)
Due to severe limitations in the Arduino SPI API, the
Catena_Mv25v8035f::program()routine not only takes a writable buffer as input, but actually modifies it with the data shifted in from the SPI bus while writing.Change to use a bounce buffer. (Longer term, add an API like the bootloader's, which stuffs zeroes if TX buffer pointer is NULL and discards input if RX buffer pointer is NULL.)