Diff: EncoderMspInitL0.cpp

Revision:

0:ebd170807e11

diff -r 000000000000 -r ebd170807e11 EncoderMspInitL0.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EncoderMspInitL0.cpp	Sun May 22 19:59:18 2016 +0000
@@ -0,0 +1,28 @@
+#include "mbed.h"
+/*
+ * HAL_TIM_Encoder_MspInit()
+ * Overrides the __weak function stub in stm32f4xx_hal_tim.h
+ *
+ * Edit the below for your preferred pin wiring & pullup/down
+ * I have encoder common at 3V3, using GPIO_PULLDOWN on inputs.
+ * Encoder A&B outputs connected directly to GPIOs.
+ *
+ */
+
+#ifdef TARGET_STM32L0
+void HAL_TIM_Encoder_MspInit(TIM_HandleTypeDef *htim)
+{
+    GPIO_InitTypeDef GPIO_InitStruct;
+
+    if (htim->Instance == TIM2) { //PA0 PA1 = Nucleo A0 A1
+        __TIM2_CLK_ENABLE();
+        __GPIOA_CLK_ENABLE();
+        GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1;
+        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+        GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+        GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+        GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
+        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+    }
+}
+#endif
\ No newline at end of file