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Fixes to get STM32F3Discovery running

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5627 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2013-02-08 21:42:23 +00:00
parent 4a5abd43c1
commit a84cc993d4
2 changed files with 46 additions and 12 deletions
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56
arch/arm/src/stm32/stm32_lowputc.c
View File

@ -178,7 +178,18 @@
# define USART_CR1_PARITY_VALUE 0
#endif
#define USART_CR1_CLRBITS (USART_CR1_M|USART_CR1_PCE|USART_CR1_PS|USART_CR1_TE|USART_CR1_RE|USART_CR1_ALLINTS)
#ifdef CONFIG_STM32_STM32F30XX
# define USART_CR1_CLRBITS\
(USART_CR1_UESM | USART_CR1_RE | USART_CR1_TE | USART_CR1_PS |\
USART_CR1_PCE |USART_CR1_WAKE | USART_CR1_M | USART_CR1_MME |\
USART_CR1_OVER8 | USART_CR1_DEDT_MASK | USART_CR1_DEAT_MASK |\
USART_CR1_ALLINTS)
#else
# define USART_CR1_CLRBITS\
(USART_CR1_M | USART_CR1_PCE |USART_CR1_PS | USART_CR1_TE |\
USART_CR1_RE | USART_CR1_ALLINTS)
#endif
#define USART_CR1_SETBITS (USART_CR1_M_VALUE|USART_CR1_PARITY_VALUE)
/* CR2 settings */
@ -189,12 +200,34 @@
# define USART_CR2_STOP2_VALUE 0
#endif
#define USART_CR2_CLRBITS (USART_CR2_STOP_MASK|USART_CR2_CLKEN|USART_CR2_CPOL|USART_CR2_CPHA|USART_CR2_LBCL|USART_CR2_LBDIE)
#ifdef CONFIG_STM32_STM32F30XX
# define USART_CR2_CLRBITS \
(USART_CR2_ADDM7 | USART_CR2_LBDL | USART_CR2_LBDIE | USART_CR2_LBCL |\
USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_STOP_MASK |\
USART_CR2_LINEN | USART_CR2_RXINV | USART_CR2_TXINV | USART_CR2_DATAINV |\
USART_CR2_MSBFIRST | USART_CR2_ABREN | USART_CR2_ABRMOD_MASK |\
USART_CR2_RTOEN | USART_CR2_ADD8_MASK)
#else
# define USART_CR2_CLRBITS \
(USART_CR2_STOP_MASK|USART_CR2_CLKEN|USART_CR2_CPOL|USART_CR2_CPHA|\
USART_CR2_LBCL|USART_CR2_LBDIE)
#endif
#define USART_CR2_SETBITS USART_CR2_STOP2_VALUE
/* CR3 settings */
#define USART_CR3_CLRBITS (USART_CR3_CTSIE|USART_CR3_CTSE|USART_CR3_RTSE|USART_CR3_EIE)
#ifdef CONFIG_STM32_STM32F30XX
# define USART_CR3_CLRBITS \
(USART_CR3_EIE | USART_CR3_IREN | USART_CR3_IRLP | USART_CR3_HDSEL |\
USART_CR3_NACK | USART_CR3_SCEN | USART_CR3_DMAR | USART_CR3_DMAT |\
USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_CTSIE | USART_CR1_ONEBIT |\
USART_CR1_OVRDIS | USART_CR1_DDRE | USART_CR1_DEM | USART_CR1_DEP |\
USART_CR1_SCARCNT_MASK | USART_CR1_WUS_MASK | USART_CR1_WUFIE)
#else
# define USART_CR3_CLRBITS \
(USART_CR3_CTSIE|USART_CR3_CTSE|USART_CR3_RTSE|USART_CR3_EIE)
#endif
#define USART_CR3_SETBITS 0
/* Only the STM32 F3 supports oversampling by 8 */
@ -465,14 +498,6 @@ void stm32_lowsetup(void)
putreg32(STM32_BRR_VALUE, STM32_CONSOLE_BASE + STM32_USART_BRR_OFFSET);
/* Select oversampling by 8 */
#ifdef USE_OVER8
cr = getreg32(STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
cr |= USART_CR1_OVER8;
putreg32(cr, STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
#endif
/* Enable Rx, Tx, and the USART */
cr = getreg32(STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
@ -536,9 +561,16 @@ void stm32_lowsetup(void)
putreg32(STM32_BRR_VALUE, STM32_CONSOLE_BASE + STM32_USART_BRR_OFFSET);
/* Enable Rx, Tx, and the USART */
/* Select oversampling by 8 */
cr = getreg32(STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
#ifdef USE_OVER8
cr |= USART_CR1_OVER8;
putreg32(cr, STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
#endif
/* Enable Rx, Tx, and the USART */
cr |= (USART_CR1_UE|USART_CR1_TE|USART_CR1_RE);
putreg32(cr, STM32_CONSOLE_BASE + STM32_USART_CR1_OFFSET);
#endif

2
arch/arm/src/stm32/stm32f30xxx_rcc.c
View File

@ -90,6 +90,8 @@ static inline void rcc_reset(void)
RCC_CFGR2_ADC34PRES_MASK);
putreg32(regval, STM32_RCC_CFGR2);
putreg32(0, STM32_RCC_CFGR2); /* Reset fCK source for all U[S]ARTs to PCLK */
regval = getreg32(STM32_RCC_CR); /* Reset HSEON, CSSON and PLLON bits */
regval &= ~(RCC_CR_HSEON|RCC_CR_CSSON|RCC_CR_PLLON);
putreg32(regval, STM32_RCC_CR);