From 28a1ff7abe23cca5e0a4a228fe8002e0d29f7cb1 Mon Sep 17 00:00:00 2001
From: Daniel Fekete <danieleff@gmail.com>
Date: Mon, 26 Jun 2017 18:21:11 +0200
Subject: [PATCH] gpio: use default high speed for peripheral gpio

---
 STM32/cores/arduino/stm32/stm32_gpio_af.c                  | 5 +++++
 STM32/cores/arduino/stm32/stm32_gpio_af.h                  | 7 ++++++-
 STM32/cores/arduino/stm32/stm32_gpio_af_F0F2F3F4F7L0L1L4.c | 4 ++--
 STM32/cores/arduino/stm32/stm32_gpio_af_F1.c               | 4 ++--
 4 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/STM32/cores/arduino/stm32/stm32_gpio_af.c b/STM32/cores/arduino/stm32/stm32_gpio_af.c
index 0050355..18d2b83 100644
--- a/STM32/cores/arduino/stm32/stm32_gpio_af.c
+++ b/STM32/cores/arduino/stm32/stm32_gpio_af.c
@@ -30,6 +30,11 @@
 #endif
 #include CHIP_PERIPHERAL_INCLUDE
 
+void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull) {
+    stm32AfInitSpeed(list, size, instance, port, pin, mode, pull, GPIO_SPEED_FREQ_VERY_HIGH);
+}
+
+
 GPIO_TypeDef *stm32AfGetDefault(const stm32_af_pin_list_type list[], int size, const void *instance, uint32_t *pin) {
     for(int i=0; i<size; i++) {
         if (instance == list[i].instance) {
diff --git a/STM32/cores/arduino/stm32/stm32_gpio_af.h b/STM32/cores/arduino/stm32/stm32_gpio_af.h
index da3a597..46c131f 100644
--- a/STM32/cores/arduino/stm32/stm32_gpio_af.h
+++ b/STM32/cores/arduino/stm32/stm32_gpio_af.h
@@ -133,10 +133,15 @@ uint32_t stm32GetClockFrequency(void *instance);
 uint8_t stm32ADC1GetChannel(GPIO_TypeDef *port, uint32_t pin_mask);
 
 /**
- * Internal: set the AF function for the selected peripheral on the selected pin
+ * Internal: set the AF function for the selected peripheral on the selected pin, with GPIO_SPEED_FREQ_VERY_HIGH speed
  */
 void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull);
 
+/**
+ * Internal: set the AF function for the selected peripheral on the selected pin, with the specified GPIO speed
+ */
+void stm32AfInitSpeed(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull, uint32_t speed);
+
 /**
  * Internal: get the default pin for the given peripheral
  */
diff --git a/STM32/cores/arduino/stm32/stm32_gpio_af_F0F2F3F4F7L0L1L4.c b/STM32/cores/arduino/stm32/stm32_gpio_af_F0F2F3F4F7L0L1L4.c
index 6ef85b9..d6937bb 100644
--- a/STM32/cores/arduino/stm32/stm32_gpio_af_F0F2F3F4F7L0L1L4.c
+++ b/STM32/cores/arduino/stm32/stm32_gpio_af_F0F2F3F4F7L0L1L4.c
@@ -37,7 +37,7 @@ int8_t stm32AfGet(const stm32_af_pin_list_type list[], int size, const void *ins
     return 0;
 }
 
-void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull) {
+void stm32AfInitSpeed(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull, uint32_t speed) {
     if (stm32_pwm_disable_callback != NULL) {
         (*stm32_pwm_disable_callback)(port, pin);
     }
@@ -50,7 +50,7 @@ void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *inst
     GPIO_InitStruct.Pin = pin;
     GPIO_InitStruct.Mode = mode;
     GPIO_InitStruct.Pull = pull;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM; // Slow signal slew rate to keep noise to minimum
+    GPIO_InitStruct.Speed = speed;
     GPIO_InitStruct.Alternate = stm32AfGet(list, size, instance, port, pin);
     HAL_GPIO_Init(port, &GPIO_InitStruct);
 }
diff --git a/STM32/cores/arduino/stm32/stm32_gpio_af_F1.c b/STM32/cores/arduino/stm32/stm32_gpio_af_F1.c
index 0a4f056..73852cd 100644
--- a/STM32/cores/arduino/stm32/stm32_gpio_af_F1.c
+++ b/STM32/cores/arduino/stm32/stm32_gpio_af_F1.c
@@ -36,7 +36,7 @@ stm32_af_callback stm32AfGet(const stm32_af_pin_list_type list[], int size, cons
     return 0;
 }
 
-void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull) {
+void stm32AfInitSpeed(const stm32_af_pin_list_type list[], int size, const void *instance, GPIO_TypeDef *port, uint32_t pin, uint32_t mode, uint32_t pull, uint32_t speed) {
     if (stm32_pwm_disable_callback != NULL) {
         (*stm32_pwm_disable_callback)(port, pin);
     }
@@ -49,7 +49,7 @@ void stm32AfInit(const stm32_af_pin_list_type list[], int size, const void *inst
     GPIO_InitStruct.Pin = pin;
     GPIO_InitStruct.Mode = mode;
     GPIO_InitStruct.Pull = pull;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM; // Slow signal slew rate to keep noise to minimum
+    GPIO_InitStruct.Speed = speed;
     HAL_GPIO_Init(port, &GPIO_InitStruct);
     
     stm32AfGet(list, size, instance, port, pin)();