Differences

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--- stm32:peripherals:timer_base [2021/10/08 14:05] – frtt
+++ stm32:peripherals:timer_base [2023/10/19 09:49] (current) – frtt
@@ Line 2: / Line 2: @@
 \\ {{timer_base.svg}} \\ \\
-===== Programming Example =====
-The code snippet bellow shows how to configure and use a GPIO pin as input.
-<code c>
-#include "reg_stm32f4xx.h"
-RCC->APB1ENR |= (0x1 << 0u);          /* Enable TIM2 clock. */
-/* configure timer */
-TIM2->PSC = 84000u - 1u;              /* Counting with f = 84MHz / 84000 = 1kHz */
-TIM2->ARR = 512u;                     /* Count to 512 */
-TIM2->CR1 |= (0x1 << 0u);             /* Start timer */
-</code>
-\\
-> {{logo_hal.svg?72px |}} **Hardware Abstraction Layer**
-> [[https://ennis.zhaw.ch/hal/structreg__tim__t.html | Register Types]]
-> [[https://ennis.zhaw.ch/hal/hal__timer_8h.html | InES Timer HAL Interface]]
-\\
 ===== Configuration Registers =====
-==== CR1 ====
+==== TIMx_CR1 - Configuration register 1 ====
-Configuration register 1
 \\ {{timer_reg_cr1.svg}} \\ \\
@@ Line 41: / Line 17: @@
 |:::|1|Counter enabled|
 //*This bit is readonly in center-aligned or encoder mode// \\
-==== DIER ====
-DMA / Interrupt enable register
+==== TIMx_DIER - DMA / Interrupt enable register ====
 \\ {{timer_reg_dier.svg}} \\ \\
@@ Line 55: / Line 30: @@
 |:::|1|Update interrupt enabled|
-==== SMCR ====
+==== TIMx_SMCR - Slave mode control register ====
-Slave mode control register
 \\ {{timer_reg_smcr.svg}} \\ \\
@@ Line 72: / Line 45: @@
 |:::|0110|f<sub>sampling</sub> => f<sub>DTS</sub> / 4, N=6|1110|f<sub>sampling</sub> => f<sub>DTS</sub> / 32, N=6|
 |:::|0111|f<sub>sampling</sub> => f<sub>DTS</sub> / 4, N=8|1111|f<sub>sampling</sub> => f<sub>DTS</sub> / 32, N=8|
+|TS |000|Internal Trigger 0 (ITR0) (reset state)|100| TI1 Edge Detector (TI1F_ED)|
+|:::|001|Internal Trigger 1 (ITR1)|101|Filtered Timer Input 1 (TI1FP1)|
+|:::|010|Internal Trigger 2 (ITR2)|110| Filtered Timer Input 2 (TI2FP2)|
+|:::|011|Internal Trigger 3 (ITR3)|111|External Trigger input (ETRF)|
 |SMS|000|Slave mode disabled (reset state)|100|Reset mode|
 |:::|001|Encoder mode 1|101|Gated mode|
@@ Line 77: / Line 54: @@
 |:::|011|Encoder mode 3|111|External clock mode 1|
-==== PSC ====
+==== TIMx_PSC - Prescaler register ====
-Prescaler register
 \\ {{timer_reg_psc.svg}} \\ \\
-==== ARR ====
+==== TIMx_ARR - Auto reload register ====
-Auto reload register
 \\ {{timer_reg_arr.svg}} \\ \\
@@ Line 91: / Line 64: @@
 ===== Data Registers =====
-==== CNT ====
+==== TIMx_CNT - Count register ====
-Count register
 \\ {{timer_reg_cnt.svg}} \\ \\
-===== Legend =====
+===== Programming Example =====
-\\ {{legende.svg}} \\ \\
+The code snippet below shows how to configure and use a timer.
+<code c>
+#include "reg_stm32f4xx.h"
+RCC->APB1ENR |= (0x1 << 0u);          /* Enable TIM2 clock. */
+/* configure timer */
+TIM2->PSC = 0u;              /* Counting with f = 84MHz / 1 = 84MHz */
+TIM2->ARR = 84000u - 1u;                     /* Count to 84000 */
+TIM2->CR1 |= (0x1 << 0u);             /* Start timer */
+</code>
+\\