Tk A
/
Nucleo_Hello_Encoder
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Nucleo_Hello_Encoder
by 
David Lowe
Diff: Encoder/EncoderMspInitL0.cpp
- Revision:
- 0:ee5cb967aa17
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Encoder/EncoderMspInitL0.cpp Sat Jan 10 20:06:07 2015 +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