sd_ble_gatts_hvx error

[sam]

when i use sd_ble_gatts_hvx() to send data,it cause a HardFault error。 when i trace the sd_ble_gatts_hvx() function,it will run to 0x00016432,in there will be compare two data,which data at 0x00016478 (value is 0xDEADBEEF),and other data at 0x2000012c(value still 0x00000000)。

Is need i initial something solve the programe,made 0x2000012c value is 0xDEADBEEF?

Thanks!

[sam]

Unfortunately,sd_ble_gatts_hvx() do not return any code. while call sd_ble_gatts_hvx(),in this function body ,while it compare two data at 0x00016478（value is 0xDEADBEEF) and 0x2000012c(value is 0x00000000) is not equal,function will fetch HardFault_handler entry and directly goto HardFault_handler .

Thanks!