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ROM
Table 7-44. rmf_flash_erase_params_t input parameters
Parameter
pw
mask
verify
reserved
reserved2
Description
Password
This is a constant password required to enable program operation. It is used only to limit the possibility of
runaway code accidentally enabling this function. If any other value than
RMF_ENABLE_FLASH_ERASE 1 is used as the value for this parameter, the function will return with a
failed status code.
Erase/Protect Mask
Bit 0 corresponds to the page beginning at address 0x(00)00_0000. Bit 31 corresponds to the page
beginning at 0x(00)00_3E00. Set each bit to “0” to protect it from erase or to “1” to erase.
The mask parameter must be 0xFFFFFFFF for all mass-erase requests.
The mask value is ANDed with the PRR to determine what pages can be legally erased. If the ANDed value
is anything less than 0xFFFFFFFF (the normal case in most applications), the request will be converted to
a series of page-erase operations.
TRUE = Once program operation is complete, run a verification of the erased area is “all 1s”.
FALSE = Do not run verify check.
Write as 0x0.
Write as 0x0.
1
Defined in rom_functions.h for this device
7.6.3.3
RMF_FLASH_ERASE output structure
Example 7-9. Output structure syntax
typedef struct {
unsigned short coco;
unsigned short err;
unsigned long *first_err;
// Command complete (TRUE/FALSE)
// Error code, if any
// address of first error found in any verify operations
} rmf_flash_op_sts_t;
Table 7-45. rmf_flash_erase_params_t output parameters
Parameter
COCO
err
first_error
Description
Command Complete
TRUE if command completed without errors.
FALSE if command did not complete and/or errors were found. Check “err” field for details.
Error Code
0x0000 if no errors encountered. See Table 7-40 for additional values.
Address of first error found in any verify operations
MMA955xL Intelligent, Motion-Sensing Platform Hardware Reference Manual, Rev. 1.0
Freescale Semiconductor, Inc.
109
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