Differences

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--- stm32:peripherals:pwr_stop [2016/10/13 12:45] – created feur
+++ stm32:peripherals:pwr_stop [2022/12/27 19:00] (current) – [STOP Mode] ruan
@@ Line 5: / Line 5: @@
 === Enter STOP mode ===
-  * WFI (wait for interrupt) instuction enters SLEEP mode.
+  * WFI (wait for interrupt) instruction with SLEEPDEEP bit set enters STOP mode.
 \\
@@ Line 16: / Line 16: @@
 ===== Programming Example =====
-The code snippet bellow shows how to enter (and exit) SLEEP mode.
+The code snippet bellow shows how to enter (and exit) STOP mode.
 <code c>
 #include "reg_stm32f4xx.h"
-RCC->AHBENR[0] |= (0x1 <<  0u);       /* Enable GPIOA clock */
+RCC->AHB1ENR |= (0x1 <<  0u);       /* Enable GPIOA clock */
-RCC->APBENR[1] |= (0x1 << 14u);       /* Enable SYSCFG clock */
+RCC->APB2ENR |= (0x1 << 14u);       /* Enable SYSCFG clock */
 /* Configure wake up pin (PA.0). */
@@ Line 31: / Line 31: @@
 /* Configure interrupt. */
-SYSCFG->EXTICR[0] |= (0u << 0u);      /* Set EXTI0 to GPIOA. */
+SYSCFG->EXTICR1 |= (0u << 0u);      /* Set EXTI0 to GPIOA. */
 EXTI->RTSR |= (0x1 << 0u);            /* Trigger on rising edge. */
 EXTI->IMR |= (0x1 << 0u);             /* Unmask interrupt line. */
-NVIC->ISER[0] |= (0x1 << 6u);         /* Enable EXTI0 interrupt. */
+NVIC->ISER0 |= (0x1 << 6u);         /* Enable EXTI0 interrupt. */
@@ Line 56: / Line 56: @@
-/* -------------------- Enter STOP mode -------------------- */
+/* -------------------- Exit STOP mode --------------------- */
 /* Since all registers and the SRAM are untouched by the STOP mode,