RM48L952: Stalling Fapi_doMarginReadByByte() in F021 API

Oleksii Horielov

Part Number: RM48L952
Other Parts Discussed in Thread: HALCOGEN

Hi, I faced with a problem to read data from EEPROM while I bring up F021 library for my project. I initialize FLASH during to recommended state machine description in "F021 FLASH API Version 2.01.01 (page 41)". Here piece of my code:

/************************************************************************************/

uint8_t *flash_addr = F021_EEPROM_MAP_BEGIN; // 0xF0200000U

Fapi_StatusType status;

status = Fapi_isAddressEEPROM(F021_EEPROMECC_MAP_BEGIN);

status = Fapi_initializeFlashBanks(160);

status = Fapi_setActiveFlashBank(7);
status = Fapi_enableEepromBankSectors(1, 0); // write data to sector #0
status = Fapi_issueProgrammingCommand(flash_addr, (uint8_t*)buff, (uint8_t)(8), F021_EEPROMECC_MAP_BEGIN, (uint8_t)(8), Fapi_DataOnly);

//For this functions calls return value is always "Fapi_Status_Success". After that I want to read written by me data from EEPROM to be sure that write operation is correct.

status = Fapi_initializeFlashBanks(160);
status = Fapi_doMarginReadByByte(flash_addr, (uint8_t*)buff, (uint32_t)(8), Fapi_NormalRead);

/************************************************************************************/

But function Fapi_doMarginReadByByte() stalls execution of my program (Some error inside function calls error handler in RTOS). I'm not deep into assembler, but execution crashes in _Fapi_enterMarginMode function in assembler debug.

Also I watch code example from this issue and write the same sequence of calls: https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1036826/rm48l952-f021-flash-api-usage-examples

Please, help me what's going wrong here.

over 3 years ago

0 jagadish gundavarapu over 3 years ago

TI__Guru* 77756 points

Hi,

I started working on your issue and i will get back to you soon.

Thanks,

Jagadish.

0 jagadish gundavarapu over 3 years ago in reply to jagadish gundavarapu

TI__Guru* 77756 points

Hi,

If you use bank 7 as EEPROM to store block of data, you can use TI FEE driver to write data to and read data from the EEPROM . The FEE driver is generated by HALCoGen if FEE is checked, because it was already tested and it is reliable

The TI FEE Driver provides the following functional services:

Initialization:

• TI_Fee_Init

Operations:

• TI_Fee_WriteAsync

• TI_Fee_WriteSync

• TI_Fee_Read

• TI_Fee_ReadSync

• TI_Fee_EraseImmediateBlock

• TI_Fee_InvalidateBlock

• TI_Fee_Shutdown

• TI_Fee_Cancel

• TI_Fee_Format

Information:

• TI_Fee_GetStatus

• TI_Fee_GetJobResult

• TI_Fee_GetVersionInfo

You can refer below user guide

0535.TI FEE User Guide.pdf

Also HALCoGen providing example project, you can find it in Help window

Thanks,

Jagadish.

0 Oleksii Horielov over 3 years ago

Prodigy 50 points

Hi, I generate a source code from HALCoGen and add it in my project. I use code from FEE read/write example project and also I stalled in TI_Fee_Init() function (Fapi_doBlankCheck in ti_fee_uil.c:903). Init function takes no parameters, so I expected that it not depends from me. As error occurred I think some troubles happens in my code in initialization and etc. May be this functions from FEE library mush run from RAM, in critical code section or some other stuff?

0 jagadish gundavarapu over 3 years ago in reply to Oleksii Horielov

TI__Guru* 77756 points

Hi,

It might be due to using of wrong version of the F021_API library.

We should configure "F021_API_CortexR4_LE_L2FMC.lib"

Thanks,

Jagadish.

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RM48L952: Stalling Fapi_doMarginReadByByte() in F021 API