Firmware User Manual (AE-step)
84
Revision 1.02
2019-04-24
TLE984x Firmware User Manual
Return Values
Remarks
It is not allowed to be called by NVM callback routines or any interrupt or multi-threaded environment in a re-
entrant context.
6.8.11
user_nvm_100tp_read
Description
This user API function reads data from the customer accessible configuration pages (100TP), the read address
is relative inside the configuration NVM area (8x one page, 1024 bytes). An invalid parameter setup (page
number out of range, offset plus count larger than page boundary, count is 0) returns an error, no read
operation is performed. In case of a checksum error, the function also returns an error.
A maximum number of 127 bytes can be read by this function (including the page counter, which is contained
in the last byte of the page).
Prototype
int32_t user_nvm_100tp_read (
uint32_t page_num
uint32_t offset
void * data
uint32_t count
)
Parameters
Data Type
Description
int32_t
ERR_LOG_SUCCESS in case of successful write operation, otherwise a negative
error code. Returned error code can be one of the following: ERR_LOG_SUCCESS,
ERR_LOG_CODE_USERAPI_CONFIG_SECTOR_WRITE_PROTECTED,
ERR_LOG_CODE_NVM_SEMAPHORE_RESERVED,
ERR_LOG_CODE_ACCESS_AB_MODE_ERROR,
ERR_LOG_CODE_NAD_VALUE_INVALID
Data Type
Name
Description
Dir
uint32_t
page_num
Page number where to read from. Valid range: 0 to 7
-
uint32_t
offset
Byte offset inside the selected page address, where to
start reading. Maximum is 127 bytes. If count plus offset is
larger than 127, an error code is returned.
-
