Hello, I am requriing some help for the following: my need is to write some configuration parameters in a non volatile memory (parameters should not be lost after a power off of the µC). It's not a big amount of data, something like 25 or maybe 30 doubles, which is about 240 bytes. I was thinking of using the flash EEPROM to do this, as it is made for this from what I understood. So I tried the exemple shown in HalCogen , but it does not work: the code stay stuck in the first loop, because the Status is always UNINIT. Here is the exemple code below: void write_to_flash(void) { uint16 u16JobResult,Status; Std_ReturnType oResult=E_OK; unsigned char read_data[100]={0}; uint8 SpecialRamBlock[100]; unsigned char pattern; uint16 u16writecounter; unsigned int FeeVirtualSectorNumber; unsigned char VsState, u8EEPIndex; unsigned char u8VirtualSector; uint8 Test_Recovery; uint8 Test_Cancel; unsigned int BlockNumber; unsigned int BlockOffset, Length; unsigned char *Read_Ptr=read_data; unsigned int loop; /* Initialize RAM array.*/ for(loop=0;loop<100;loop++)SpecialRamBlock[loop] = loop; /* Initialize FEE. This will create Virtual sectors, initialize global variables etc.*/ TI_Fee_Init(); do { TI_Fee_MainFunction(); delay(); Status=TI_Fee_GetStatus(0 ); } while(Status!= IDLE); /* Write the block into EEP Asynchronously. Block size is configured in ti_fee_cfg.c file. Default Block size is 8 bytes */ BlockNumber=0x1; TI_Fee_WriteAsync(BlockNumber, &SpecialRamBlock[0]); do { TI_Fee_MainFunction(); delay(); Status=TI_Fee_GetStatus(0); } while(Status!=IDLE); /* Write the block into EEP Synchronously. Write will not happen since data is same. */ TI_Fee_WriteSync(BlockNumber, &SpecialRamBlock[0]); /* Read the block with unknown length */ BlockOffset = 0; Length = 0xFFFF; oResult=TI_Fee_Read(BlockNumber,BlockOffset,Read_Ptr,Length); do { TI_Fee_MainFunction(); delay(); Status=TI_Fee_GetStatus(0); } while(Status!=IDLE); /* Invalidate a written block */ TI_Fee_InvalidateBlock(BlockNumber); do { TI_Fee_MainFunction(); delay(); Status=TI_Fee_GetStatus(0); } while(Status!=IDLE); /* Format bank 7 */ TI_Fee_Format(0xA5A5A5A5U); } I have installed the flash API correctly I guess, and link the code with "C:\ti\Hercules\F021 Flash API\02.01.01\F021_API_CortexR4_BE_L2FMC_V3D16.lib" I have done nothing in HalCogen , except enable FEE drivers. And I am using FreeRTOS. Any clue would be helpful. I really read a lot of topic, but found no answer on how to make this work. The documentation is not very clear about it, and even if my need is really basic, I could not figure it out. Thanks Audry
↧