ROM
7.6.1.5
RMF_GET_DEVICE_INFO access/security policies
This function may be called at any time.
Example 7-4. RMF_GET_DEVICE_INFO
rmf_device_info_t device_data;
device_data = (call_trap(RMF_GET_NFO, NULL)).val;
7.6.2
7.6.2.1
RMF_FLASH_PROGRAM
Description
All user access to the flash-controller programming functions is via this function. Interrupts are disabled
when this function executes and STOP-mode operation is temporarily disabled. System clocks will remain
in their high-speed states (8 MHz) during program operations.
Because flash operations interfere with STOP-mode operation, their use is not consistent with normal
sensor operation as described in Chapter 4, “Operational Phases and Modes of Operation” . Frame
operation will need to be suspended during use of this function.
NOTE
The flash-controller hardware is not accessible outside of Supervisor mode.
Accessing flash-controller hardware by a Supervisor-mode method other
than this function (and companion functions, listed herein) is strongly
discouraged.
Primary input attributes are an array of values to be programmed and the address at which the first value
should be programmed in flash. Addresses are automatically incremented for each value in the input array.
7.6.2.2
RMF_FLASH_PROGRAM input structure
Example 7-5. Input structure syntax
typedef struct {
unsigned
unsigned
unsigned
unsigned
unsigned
unsigned
unsigned
long pw;
long addr; .
short num_lwords;
short reserved; // Write as 0x0000;
short reserved2; // Write as 0x0000;
short verify;
long *data;
} rmf_flash_prog_params_t;
MMA955xL Intelligent, Motion-Sensing Platform Hardware Reference Manual, Rev. 1.0
Freescale Semiconductor, Inc.
105
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