WEBENCH® Tools/TIDM-THREEPHASEMETER-F67641: Retain kWh

Hello,

I'm assuming the EEPROM communication works correctly on the EVM430-F67641 board, correct? It sounds like your design isn't communicating with the external EEPROM. Perhaps the EEPROM is from a different manufacture, the address is different, the connections are wrong, etc.

I would suggest monitoring the communication with a logic analyzer or scope to determine why the communication isn't working. Combining that information with where the code is hanging should give you a good idea what's wrong. You can power your board using a bench supply rather than high voltage for safer debugging.

Regards,

James

Hi James Evans 

I able to read and write to EEPROM from MSP430F67641 with Basic read and write program. But the problem is when I am using with http://www.ti.com/lit/zip/slaa621 

 if ((phase_state & PHASE_STATUS_NEW_LOG))
            {
                /* The background activity has informed us that it is time to
                   perform a block processing operation. */
                /* We can only do real power assessment in full operating mode */
                calculate_phase_readings(ph);
                x = active_power(ph);

                 *((uint64_t *) &ener[0]) = energy_consumed[FAKE_PHASE_TOTAL][APP_ACTIVE_ENERGY_IMPORTED]
                  EEPROM_PageWrite(address , ener , sizeof(ener));
               

Even I am not able to write to internal eeprom like flash_write_int32 in emeter-main.c

Thanks

KarthiG

Hello,

I found this note in the 'emeter-template.h' file. It seems to indicate that you'll need to implement the communication piece, specifically the store and retrieve (e.g. writes). I did find several EEPROM functions defined in the 'iiceeprom.c' file. You may need to search through the code and enable the appropriate defines to call some of these functions.

If the flow is hanging during EEPROM write and you're in debug mode, is it hanging in one of the 'iiceeprom.c' functions?

/* Many data logging requirements can be met by using only the MSP430's
info memory. If an external serial EEPROM is needed for more
complex requirements, this switch will enable an interface to
I2C type serial EEPROMs. Basic routines to driver these EEPROMs are
included in the toolkit. Routines to actually store and retrieve
information are left to the meter designer. */
#undef EXTERNAL_EEPROM_SUPPORT

Regards,

James