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Implemented support for HSI16 divider on STM32L0xx. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10223 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Giovanni Di Sirio 2017-05-29 08:18:50 +00:00
parent 685dc4e5f4
commit 0a80e007b0
10 changed files with 37 additions and 7 deletions
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1
demos/STM32/NIL-STM32L011K4-NUCLEO32/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED TRUE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED FALSE

1
demos/STM32/RT-STM32L031K6-NUCLEO32/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED TRUE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED FALSE

1
demos/STM32/RT-STM32L053-DISCOVERY/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED TRUE
#define STM32_HSE_ENABLED TRUE
#define STM32_LSE_ENABLED FALSE

1
demos/STM32/RT-STM32L053R8-NUCLEO64/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED TRUE

1
demos/STM32/RT-STM32L073RZ-NUCLEO64/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED TRUE

6
os/hal/ports/STM32/STM32L0xx/hal_lld.c
View File

@ -208,6 +208,12 @@ void stm32_clock_init(void) {
RCC->CR |= RCC_CR_HSION;
while ((RCC->CR & RCC_CR_HSIRDY) == 0)
; /* Waits until HSI16 is stable. */
#if STM32_HSI16_DIVIDER_ENABLED
RCC->CR |= RCC_CR_HSIDIVEN;
while ((RCC->CR & RCC_CR_HSIDIVF) == 0)
;
#endif
#endif
#if STM32_HSE_ENABLED

30
os/hal/ports/STM32/STM32L0xx/hal_lld.h
View File

@ -324,6 +324,13 @@
#define STM32_HSI16_ENABLED TRUE
#endif
/**
* @brief Enables or disables the HSI16 clock divider.
*/
#if !defined(STM32_HSI16_DIVIDER_ENABLED) || defined(__DOXYGEN__)
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#endif
/**
* @brief Enables or disables the LSI clock source.
*/
@ -675,6 +682,15 @@
#endif /* !STM32_HSI16_ENABLED */
/*
* @brief Divided HSI16 clock.
*/
#if STM32_HSI16_DIVIDER_ENABLED || defined(__DOXYGEN__)
#define STM32_HSI16DIVCLK (STM32_HSI16CLK / 4)
#else
#define STM32_HSI16DIVCLK STM32_HSI16CLK
#endif
/* HSE related checks.*/
#if STM32_HSE_ENABLED
#if STM32_HSECLK == 0
@ -798,7 +814,7 @@
#if (STM32_PLLSRC == STM32_PLLSRC_HSE) || defined(__DOXYGEN__)
#define STM32_PLLCLKIN STM32_HSECLK
#elif STM32_PLLSRC == STM32_PLLSRC_HSI16
#define STM32_PLLCLKIN STM32_HSI16CLK
#define STM32_PLLCLKIN STM32_HSI16DIVCLK
#else
#error "invalid STM32_PLLSRC value specified"
#endif
@ -954,7 +970,7 @@
#elif STM32_MCOSEL == STM32_MCOSEL_SYSCLK
#define STM32_MCODIVCLK STM32_SYSCLK
#elif STM32_MCOSEL == STM32_MCOSEL_HSI16
#define STM32_MCODIVCLK STM32_HSI16CLK
#define STM32_MCODIVCLK STM32_HSI16DIVCLK
#elif STM32_MCOSEL == STM32_MCOSEL_MSI
#define STM32_MCODIVCLK STM32_MSICLK
#elif STM32_MCOSEL == STM32_MCOSEL_HSE
@ -1026,7 +1042,7 @@
#elif STM32_USART1SEL == STM32_USART1SEL_SYSCLK
#define STM32_USART1CLK STM32_SYSCLK
#elif STM32_USART1SEL == STM32_USART1SEL_HSI16
#define STM32_USART1CLK STM32_HSI16CLK
#define STM32_USART1CLK STM32_HSI16DIVCLK
#elif STM32_USART1SEL == STM32_USART1SEL_LSE
#define STM32_USART1CLK STM32_LSECLK
#else
@ -1041,7 +1057,7 @@
#elif STM32_USART2SEL == STM32_USART2SEL_SYSCLK
#define STM32_USART2CLK STM32_SYSCLK
#elif STM32_USART2SEL == STM32_USART2SEL_HSI16
#define STM32_USART2CLK STM32_HSI16CLK
#define STM32_USART2CLK STM32_HSI16DIVCLK
#elif STM32_USART2SEL == STM32_USART2SEL_LSE
#define STM32_USART2CLK STM32_LSECLK
#else
@ -1066,7 +1082,7 @@
#elif STM32_LPUART1SEL == STM32_LPUART1SEL_SYSCLK
#define STM32_LPUART1CLK STM32_SYSCLK
#elif STM32_LPUART1SEL == STM32_LPUART1SEL_HSI16
#define STM32_LPUART1CLK STM32_HSI16CLK
#define STM32_LPUART1CLK STM32_HSI16DIVCLK
#elif STM32_LPUART1SEL == STM32_LPUART1SEL_LSE
#define STM32_LPUART1CLK STM32_LSECLK
#else
@ -1081,7 +1097,7 @@
#elif STM32_I2C1SEL == STM32_I2C1SEL_SYSCLK
#define STM32_I2C1CLK STM32_SYSCLK
#elif STM32_I2C1SEL == STM32_I2C1SEL_HSI16
#define STM32_I2C1CLK STM32_HSI16CLK
#define STM32_I2C1CLK STM32_HSI16DIVCLK
#else
#error "invalid source selected for I2C1 clock"
#endif
@ -1094,7 +1110,7 @@
#elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_LSI
#define STM32_LPTIM1CLK STM32_LSICLK
#elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_HSI16
#define STM32_LPTIM1CLK STM32_HSI16CLK
#define STM32_LPTIM1CLK STM32_HSI16DIVCLK
#elif STM32_LPTIM1SEL == STM32_LPTIM1SEL_LSE
#define STM32_LPTIM1CLK STM32_LSECLK
#else

1
testhal/STM32/STM32L0xx/ADC/mcuconf.h
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@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED TRUE

1
testhal/STM32/STM32L0xx/EXT/mcuconf.h
View File

@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED TRUE

1
testhal/STM32/STM32L0xx/SPI/mcuconf.h
View File

@ -41,6 +41,7 @@
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_DIVIDER_ENABLED FALSE
#define STM32_LSI_ENABLED FALSE
#define STM32_HSE_ENABLED FALSE
#define STM32_LSE_ENABLED TRUE