NXP Semiconductors Kinetis KE1xZ256, Reference Manual

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Table 22-49. Possible status response
Value Constant Description
4 kStatus_InvalidArgument Config or backdoorKey pointers are NULL.
103 kStatus_FLASH_AccessError The following condition causes this return value:
1. An incorrect backdoor key is supplied
2. Backdoor key access has not been enabled.
0 kStatus_Success This function has performed successfully.
Example:
Assume that the flash range from 0x400 to 0x40c contains the following content after the
last reset, which means that the backdoor key is valid and the backdoor key access has
been enabled.
0x11 0x22 0x33 0x44 0x55 0x66 0x77 0x88 0xff 0xff 0xff 0xbf
uint8_t backdoorKey[] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88};
status_t status = FLASH_SecurityBypass (&flashInstance, & backdoorKey[0]);
22.4.5.8 FLASH_VerifyEraseAll
Checks if the entire flash has been erased to the specified read margin level.
To verify if the entire flash has been fully erased (after executing an FLASH_EraseAll),
call FLASH_VerifyEraseAll.
Prototype:
status_t FLASH_VerifyEraseAll(flash_config_t *config, flash_margin_value_t margin);
Table 22-50. Parameters
Parameter Description
Config Pointer to
flash_config_t
data structure in memory, to
store driver runtime state.
Margin1 Read margin choice:
• kFLASH_MarginValueNormal 0
• kFLASH_MarginValueUser 1
• kFLASH_MarginValueFactory 2
Table 22-51. Possible status response
Value Constant Description
4 kStatus_InvalidArgument Config or backdoorKey pointers are NULL.
Table continues on the next page...
Kinetis Flash Driver API
Kinetis KE1xZ256 Sub-Family Reference Manual, Rev. 3, 07/2018
510 NXP Semiconductors