diff options
Diffstat (limited to 'libmaple')
| -rw-r--r-- | libmaple/stm32.h | 69 |
1 files changed, 49 insertions, 20 deletions
diff --git a/libmaple/stm32.h b/libmaple/stm32.h index 6cf5ba4..0d19ddb 100644 --- a/libmaple/stm32.h +++ b/libmaple/stm32.h @@ -32,6 +32,14 @@ #ifndef _STM32_H_ #define _STM32_H_ +/* + * User-specific configuration. + * + * The #defines here depend upon how libmaple is used. Because of the + * potential for a mismatch between them and the actual libmaple + * usage, you should try to keep their number to an absolute minimum. + */ + /** * \def PCLK1 * Clock speed of APB1 peripherals, in Hz. @@ -49,9 +57,17 @@ #define PCLK2 72000000U #endif +/* + * Density-specific configuration. + */ + /** * \def NR_INTERRUPTS - * Number of interrupts in the NVIC. + * + * Number of interrupts in the NVIC. This define is automatically + * generated whenever the proper density is defined (currently, this + * is restricted to defining one of STM32_MEDIUM_DENSITY and + * STM32_HIGH_DENSITY). */ #ifdef STM32_MEDIUM_DENSITY @@ -64,32 +80,18 @@ #endif #endif -/** - * \def NR_GPIO_PORTS - * Number of GPIO ports - */ - -/* SRAM_SIZE intentionally not part of Doxygen interface */ - -/** - * \def DELAY_US_MULT - * Multiplier to convert microseconds into loop iterations in delay_us(). +/* + * MCU-specific configuration. * - * @see delay_us() + * If you add something here, make sure to include documentation for + * it in the __DOXYGEN_PREDEFINED_HACK section, below. */ -/* MCU-specific configuration */ #if defined(MCU_STM32F103RB) /* e.g., LeafLabs Maple */ - /* Number of GPIO ports (GPIOA, GPIOB, etc.) */ #define NR_GPIO_PORTS 4 - - /* SRAM size, in bytes */ #define SRAM_SIZE 0x5000 - - /* Multiplier to convert microseconds into loop iterations in - * delay_us() (See delay.h) */ #define DELAY_US_MULT 12 #elif defined(MCU_STM32F103ZE) @@ -124,5 +126,32 @@ #endif -#endif +/* MCU-specific config documentation. + * + * Doxygen refuses to trust us when we \def something that it doesn't + * notice as a #define. To work around this, we put + * __DOXYGEN_PREDEFINED_HACK into our Doxyfile's PREDEFINED, so that + * this section is considered part of the code by doxygen, but not by + * an actual compile. */ + +#ifdef __DOXYGEN_PREDEFINED_HACK + + /** + * Number of GPIO ports + */ + #define NR_GPIO_PORTS + + /* SRAM_SIZE intentionally not documented as I'm not convinced + * it's a good idea [mbolivar]. */ + + /** + * @brief Multiplier to convert microseconds into loop iterations + * in delay_us(). + * + * @see delay_us() + */ + #define DELAY_US_MULT + +#endif /* __DOXYGEN_PREDEFINED_HACK */ +#endif /* _STM32_H_ */ |