How use external trigger SDADC correctly of STM32F3 ?

[BarcaM]

Hi everyone ! I want configure external trigger of sdadc in stm32373c-eval. Trigger external is TIM13 configured at 1700Hz (purple signal), when HAL_SDADC_InjectedConvCpltCallback execute i did that toggle LED and the toggle is doing 16's in one period of 1700Hz (blue signal).

I adjunt an image of this.