stm32f4: refactor GPIO, in prep for adding SPI, I2C, PWM etc

2026-08-16 10:43:29 +00:00 · 2020-03-07 08:34:42 -06:00
parent 3aaa029c70
commit c8a4994feb
6 changed files with 306 additions and 145 deletions
@@ -0,0 +1,26 @@
+// These are the supported alternate function numberings on the stm32f407
+// +build stm32,stm32f407
+
+// Alternate function settings on the stm32f4xx series
+
+package stm32
+
+const (
+	// Alternative peripheral pin functions
+	// AF0_SYSTEM is defined im the common bitfields package
+	AF1_TIM1_2                AltFunc = 1
+	AF2_TIM3_4_5                      = 2
+	AF3_TIM8_9_10_11                  = 3
+	AF4_I2C1_2_3                      = 4
+	AF5_SPI1_SPI2                     = 5
+	AF6_SPI3                          = 6
+	AF7_USART1_2_3                    = 7
+	AF8_USART4_5_6                    = 8
+	AF9_CAN1_CAN2_TIM12_13_14         = 9
+	AF10_OTG_FS_OTG_HS                = 10
+	AF11_ETH                          = 11
+	AF12_FSMC_SDIO_OTG_HS_1           = 12
+	AF13_DCMI                         = 13
+	AF14                              = 14
+	AF15_EVENTOUT                     = 15
+)