Basic Timers (Tim6 And Tim7); Tim6 And Tim7 Introduction; Tim6 And Tim7 Main Features; Figure 182. Basic Timer Block Diagram - ST STM32F207 Series Reference Manual

Basic timers (TIM6 and TIM7)

16 Basic timers (TIM6 and TIM7)
This section applies to the whole STM32F20x and STM32F21x family, unless otherwise
specified.
16.1

TIM6 and TIM7 introduction

The basic timers TIM6 and TIM7 consist of a 16-bit auto-reload counter driven by a
programmable prescaler.
They may be used as generic timers for time-base generation but they are also specifically
used to drive the digital-to-analog converter (DAC). In fact, the timers are internally
connected to the DAC and are able to drive it through their trigger outputs.
The timers are completely independent, and do not share any resources.
16.2

TIM6 and TIM7 main features

Basic timer (TIM6 and TIM7) features include:
•
16-bit auto-reload upcounter
•
16-bit programmable prescaler used to divide (also "on the fly") the counter clock
frequency by any factor between 1 and 65536
•
Synchronization circuit to trigger the DAC
•
Interrupt/DMA generation on the update event: counter overflow
Flag
484/1381

Figure 182. Basic timer block diagram

TIMxCLK from RCC
CK_PSC
PSC
Prescaler
Preload registers transferred
to active registers on U event according to control bit
event
interrupt & DMA output
Internal clock (CK_INT)
Controller
U
Auto-reload Register
Stop, Clear or up
CK_CNT
CNT
±
COUNTER
RM0033 Rev 9
TRGO
Trigger
to DAC
controller
Reset, Enable, Count,
UI
U
RM0033
ai14749b