NXP Semiconductors K32 L2A Series, Reference Manual, Page: 306 / 1379

• Flash-erase-all: This command can erase all SPI flash devices defined in the QCB.
For example, if “flash-erase-all 1”, the 1 represents the source of the erasure
command is QuadSPI memory.
• Flash-erase-region: This command can erase a specified range of flash within
connected SPI flash devices. For example “flash-erase-region 0x68000000
0x10000”.
• Write-memory: The Kinetis Bootloader calls the Write-memory command to
program specified data to a given region of connected SPI flash devices. For
example, “write-memory 0x68001000 led_demo.bin”.
• Read-memory: The Kinetis Bootloader calls the Read-memory command to read
data from a given region of connected SPI flash devices. For example, “read-memory
0x68000000 1024 temp.bin”.
These commands return error codes.
Table 14-56. Status Error Codes for accessing QuadSPI memory
Error Code Value Description
kStatus_Success 0 Operation succeeded without error
kStatus_QspiFlashSizeError 400 Size of external SPI flash is invalid
kStatus_QspiFlashAlignmentError 401 Start Address for program is not page-aligned
kStatus_QspiFlashAddressError 402 The address is invalid
kStatus_QspiFlashCommandFailure 403 The operation failed
kStatus_QspiNotConfigured 405 QSPI module is not successfully configured
kStatus_QspiCommandNotSupported 406 The command is not supported under certain modes
kStatus_QspiCommandTimeout 407 The time that the external SPI device is busy more than the
timeout value (timeout_milliseconds).
kStatus_QspiWriteFailure 408 QSPI module cannot perform a program command at the
current clock frequency
14.4.3.5 Boot directly from QuadSPI
The Kinetis Bootloader supports booting directly from QuadSPI. To boot directly from
QuadSPI, the following conditions must be met:
• The bootFlags field in BCA is set to 0xFE, which means "boot directly from
QuadSPI".
• The BOOTSRC_SEL field (bits [7:6]) in the FOPT register at address 0x40D is set to
“0’b10”, which means "boot from ROM with QuadSPI configured".
• User application is valid.
• QuadSPI configuration block (QCB) is valid
• CRC check passed if the CRC check feature is enabled.
Peripherals Supported
K32 L2A Reference Manual, Rev. 2, 01/2020
306 NXP Semiconductors