Other Parts Discussed in Thread: HALCOGEN
Hi,
To enable the EEPROM sectors, the MSB 16 bits of the register FSM sector located at 0xFFF872A4 is updated with ~(sectors to be enabled). So while assigning the value as below:
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Hi,
To enable the EEPROM sectors, the MSB 16 bits of the register FSM sector located at 0xFFF872A4 is updated with ~(sectors to be enabled). So while assigning the value as below:
Hi Tirumala,
It is not suggested to use this register. Please use the registers at 0x2C0 and 0x2C4 instead.
During a bank erase operation, those registers keep track of which sectors have been erased. A one indicates that the sector was erased and a zero mean not yet erased.
The lower 16-bit of register at 0x2A4 is mainly for debugging purpose, its upper 16-bit shows the erase status.
Please use FEE driver generated by HAlCoGen for EEPROM operation.
Thank you Wang!
Currently, we are trying to debug using the same register because we are trying to use the F021 library code modified as per our need. So we would like to understand if the register FSM sector located at 0xFFF872A4 is a read-only register? is it possible to write 0 to the lower 16 bits of the register? Request you to confirm.
Hi Tirumala,
A modified API which can potentially impact the flash must not be used in an application. For creating a flash programming solution, the flash API library must be used as provided by TI.
We provide the API source code only for certification purposes.
The register FSM sector located at 0xFFF872A4:
bit[31:16]: can be written in privileged mode. It shows the sector erased. As mentioned before, please use FSM_SECTOR1 register at 0x2c0 instead.
bit[15:0] is read only. bit[15:4] shows current sector used by the FSM. It is mainly used by the bank erase command and read_verify commands and should not be used outside of these commands.
The register FSM sector 1 located at 0xFFF872C0:
Bits[31:0] : sector erased, please use this field instead of the same field in the FSM_SECTOR register at 0xFFF872A4
The register FSM sector 2 located at 0xFFF872C4:
Bits[31:0]: Sector erased - Bank 7 only.
The default value of bit[15:0] of FSM Sector at 0xFFF872A4 is 0x0000
Bit[15:8]: sector extension bits when flash contains > 16 sectors
Bit[7:4]: the current sector used by the FSM. It is mainly used by the bank erase command and read_verify commands and should not be used outside of these commands.
Bit[3:0]: Sector output which is from the address decoder. It can be used to verify the validity of the device’s sector configuration. It become active during FSM commands that use addresses.