topic PDM_eReadDataFromRecord results in a Bus Error in Wireless MCU

PDM_eReadDataFromRecord results in a Bus Error

jacco_bezemer — Mon, 21 Jun 2021 20:50:05 GMT

Hi,

I implemented PDM_eReadDataFromRecord in my JN-AN-1218-Zigbee-3-0-Light-Bulb based project. As an example i used app_power_on_counter.c.

This is my code:

typedef struct { uint8 u8MinDim; uint8 u8MaxDim; }tsMinMaxDim; PRIVATE tsMinMaxDim sMinMaxDim; PDM_teStatus eStatus; uint16 u16ByteRead; eStatus = PDM_eReadDataFromRecord(PDM_ID_APP_MIN_MAX_DIM, &sMinMaxDim, sizeof(tsMinMaxDim), &u16ByteRead);

Unfortunately it results in a bus error.

What am i doing wrong?

Re: PDM_eReadDataFromRecord results in a Bus Error

mario_castaneda — Tue, 22 Jun 2021 15:40:56 GMT

Hi @jacco_bezemer,

Are you sure that your identifier exists?

Please call the PDM_bDoesDataExist() in order
to determine whether a record with the specified identifier exists in the EEPROM.

Regards,

Mario

Re: PDM_eReadDataFromRecord results in a Bus Error

jacco_bezemer — Tue, 22 Jun 2021 16:03:35 GMT

Hi Mario,

Yes, the identifier exists, this is how my PDM_IDs.h looks like:

/* application ids start from 0Xa100 */ #define PDM_ID_APP_TL_ROUTER (0xA100) #define PDM_ID_APP_SCENES_DATA (0xA101) #define PDM_ID_OTA_DATA (0xA102) #define PDM_ID_APP_CLD_GP_TRANS_TABLE (0xA103) #define PDM_ID_APP_CLD_GP_SINK_PROXY_TABLE (0xA104) #define PDM_ID_APP_REPORTS 0xA105 #define PDM_ID_POWER_ON_COUNTER 0xA106 #define PDM_ID_ZCL_ATTRIB 0xA107 #define PDM_ID_APP_NTAG_NWK 0xA108 #define PDM_ID_APP_CONVERT 0xA109 #define PDM_ID_APP_NFC_NWK_NCI 0x30 #define PDM_ID_APP_NFC_ICODE 0x31 #define PDM_ID_APP_MIN_MAX_DIM (0xA10A)

and i tried PDM_bDoesDataExist(), but it also results in a bus error.

However this:

PDM_teStatus eStatus; eStatus = PDM_eSaveRecordData(PDM_ID_APP_MIN_MAX_DIM, &sMinMaxDim, sizeof(tsMinMaxDim)); DBG_vPrintf(TRACE_DRIVER, "\nDimmer: PDM_eSaveRecordData Status = %d", eStatus);

results in PDM_E_STATUS_OK.

So the record exists (i think).

Re: PDM_eReadDataFromRecord results in a Bus Error

jacco_bezemer — Tue, 22 Jun 2021 21:11:03 GMT

I called PDM_eReadDataFromRecord from within DriverBulb_vInit() which is before PDM_eInitialise(63) is called and that caused the Bus Error.

Now find a way to read settings from EEPROM in DriverBulb_vInit (or prior)