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-rw-r--r--libmaple/stm32f1/include/series/stm32.h100
1 files changed, 69 insertions, 31 deletions
diff --git a/libmaple/stm32f1/include/series/stm32.h b/libmaple/stm32f1/include/series/stm32.h
index c122df0..eaf9287 100644
--- a/libmaple/stm32f1/include/series/stm32.h
+++ b/libmaple/stm32f1/include/series/stm32.h
@@ -38,6 +38,17 @@ extern "C" {
#define STM32_MCU_SERIES STM32_SERIES_F1
+/* The STM32F1 series is subdivided into "lines". libmaple currently
+ * officially supports STM32F103 performance line MCUs (see the
+ * MCU-specific value section below).
+ *
+ * You can use these F1 line defines if porting libmaple to support
+ * MCUs on other lines. */
+#define STM32_F1_LINE_PERFORMANCE 0
+#define STM32_F1_LINE_VALUE 1
+#define STM32_F1_LINE_ACCESS 2
+#define STM32_F1_LINE_CONNECTIVITY 3
+
/*
* MCU-specific values.
*
@@ -48,23 +59,31 @@ extern "C" {
*/
#if defined(MCU_STM32F103RB)
+# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE
# define STM32_NR_GPIO_PORTS 4
# define STM32_SRAM_END ((void*)0x20005000)
+# define STM32_MEDIUM_DENSITY
#elif defined(MCU_STM32F103ZE)
+# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE
# define STM32_NR_GPIO_PORTS 7
# define STM32_SRAM_END ((void*)0x20010000)
+# define STM32_HIGH_DENSITY
#elif defined(MCU_STM32F103CB)
+# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE
/* This STM32_NR_GPIO_PORTS is not strictly true, but only pins 0
* and exist, and they're used for OSC (e.g. on e.g. LeafLabs
* Maple Mini), so we'll live with this for now. */
# define STM32_NR_GPIO_PORTS 3
# define STM32_SRAM_END ((void*)0x20005000)
+# define STM32_MEDIUM_DENSITY
#elif defined(MCU_STM32F103RE)
+# define STM32_F1_LINE STM32_F1_LINE_PERFORMANCE
# define STM32_NR_GPIO_PORTS 4
# define STM32_SRAM_END ((void*)0x20010000)
+# define STM32_HIGH_DENSITY
#else
#error "Unrecognized STM32F1 MCU, or no MCU specified. Add something like " \
@@ -72,46 +91,65 @@ extern "C" {
#endif
/*
- * Clock configuration.
+ * Derived values.
*/
-#ifndef STM32_PCLK1
-#define STM32_PCLK1 36000000U
-#endif
+#if STM32_F1_LINE == STM32_F1_LINE_PERFORMANCE
+ /* All supported performance line MCUs have a USB peripheral */
+# define STM32_HAVE_USB 1
+
+# ifdef STM32_MEDIUM_DENSITY
+# define STM32_NR_INTERRUPTS 43
+# define STM32_HAVE_FSMC 0
+# elif defined(STM32_HIGH_DENSITY)
+# define STM32_NR_INTERRUPTS 60
+# define STM32_HAVE_FSMC 1
+# endif
+
+#elif STM32_F1_LINE == STM32_F1_LINE_VALUE
+ /* Value line MCUs don't have USB peripherals. */
+# define STM32_HAVE_USB 0
+
+# ifdef STM32_MEDIUM_DENSITY
+# define STM32_NR_INTERRUPTS 56
+# define STM32_HAVE_FSMC 0
+# elif defined(STM32_HIGH_DENSITY)
+ /* 61 interrupts here counts the possibility for a remapped
+ * DMA2 channel 5 IRQ occurring at NVIC index 60. */
+# define STM32_NR_INTERRUPTS 61
+# define STM32_HAVE_FSMC 1
+# endif
-#ifndef STM32_PCLK2
-#define STM32_PCLK2 72000000U
-#endif
-
-#ifndef STM32_DELAY_US_MULT
-#define STM32_DELAY_US_MULT 12 /* FIXME: value is incorrect. */
#endif
/*
- * Density-specific values.
+ * Clock configuration.
+ *
+ * We've currently got values for F103 MCUs operating at the fastest
+ * possible speeds.
+ *
+ * You can patch these for your line, MCU, clock configuration,
+ * etc. here or by setting cflags when compiling libmaple.
*/
-#ifdef STM32_MEDIUM_DENSITY
-# ifndef STM32_NR_INTERRUPTS
-# define STM32_NR_INTERRUPTS 43
-# endif
-
-# ifndef STM32_HAVE_FSMC
-# define STM32_HAVE_FSMC 0
-# endif
-
-#elif defined(STM32_HIGH_DENSITY)
-# ifndef STM32_NR_INTERRUPTS
-# define STM32_NR_INTERRUPTS 60
-# endif
-
-# ifndef STM32_HAVE_FSMC
-# define STM32_HAVE_FSMC 1
-# endif
+#if STM32_F1_LINE == STM32_F1_LINE_PERFORMANCE
+# ifndef STM32_PCLK1
+# define STM32_PCLK1 36000000U
+# endif
+# ifndef STM32_PCLK2
+# define STM32_PCLK2 72000000U
+# endif
+# ifndef STM32_DELAY_US_MULT
+# define STM32_DELAY_US_MULT 12 /* FIXME: value is incorrect. */
+# endif
+#elif STM32_F1_LINE == STM32_F1_LINE_VALUE /* TODO */
+#elif STM32_F1_LINE == STM32_F1_LINE_ACCESS /* TODO */
+#elif STM32_F1_LINE == STM32_F1_LINE_CONNECTIVITY /* TODO */
+#endif
-#else
-#error "Unsupported STM32F1 density, or no density specified. Add something " \
- "like -DSTM32_MEDIUM_DENSITY to your compiler arguments."
+/* Make sure we have the F1-specific defines we need. */
+#if !defined(STM32_F1_LINE)
+#error "Bad STM32F1 configuration. Check STM32F1 <series/stm32.h> header."
#endif
#ifdef __cplusplus