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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-10-18 21:36:25 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2009-10-18 21:36:25 +0000 |
| commit | 523d0fb5427ceccbff2b9a8ef812fff8596ee3dc (patch) | |
| tree | 0fa86d6fdfbd6f453479d5d1a48cf34fed20d296 /nuttx/arch/arm/src/stm32/stm32_spi.c | |
| parent | dbaa783ef42ef49c436a116436a17e7b34553ccb (diff) | |
| download | px4-nuttx-523d0fb5427ceccbff2b9a8ef812fff8596ee3dc.tar.gz px4-nuttx-523d0fb5427ceccbff2b9a8ef812fff8596ee3dc.tar.bz2 px4-nuttx-523d0fb5427ceccbff2b9a8ef812fff8596ee3dc.zip | |
Wait conditions backward
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2159 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32_spi.c')
| -rwxr-xr-x | nuttx/arch/arm/src/stm32/stm32_spi.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_spi.c b/nuttx/arch/arm/src/stm32/stm32_spi.c index 68f3f729b..ef7c5f307 100755 --- a/nuttx/arch/arm/src/stm32/stm32_spi.c +++ b/nuttx/arch/arm/src/stm32/stm32_spi.c @@ -354,7 +354,7 @@ static inline uint16 spi_readword(FAR struct stm32_spidev_s *priv) { /* Wait until the receive buffer is not empty */ - while ((spi_getreg(priv, STM32_SPI_SR_OFFSET) & SPI_SR_RXNE) != 0); + while ((spi_getreg(priv, STM32_SPI_SR_OFFSET) & SPI_SR_RXNE) == 0); /* Then return the received byte */ @@ -380,7 +380,7 @@ static inline void spi_writeword(FAR struct stm32_spidev_s *priv, uint16 word) { /* Wait until the transmit buffer is empty */ - while ((spi_getreg(priv, STM32_SPI_SR_OFFSET) & SPI_SR_TXE) != 0); + while ((spi_getreg(priv, STM32_SPI_SR_OFFSET) & SPI_SR_TXE) == 0); /* Then send the byte */ @@ -657,11 +657,11 @@ static inline void spi_dmatxstart(FAR struct stm32_spidev_s *priv) static void spi_modifycr1(FAR struct stm32_spidev_s *priv, uint16 setbits, uint16 clrbits) { - uint16 cr1; - cr1 = spi_getreg(priv, STM32_SPI_CR1_OFFSET); - cr1 &= ~clrbits; - cr1 |= setbits; - spi_putreg(priv, STM32_SPI_CR1_OFFSET, cr1); + uint16 cr1; + cr1 = spi_getreg(priv, STM32_SPI_CR1_OFFSET); + cr1 &= ~clrbits; + cr1 |= setbits; + spi_putreg(priv, STM32_SPI_CR1_OFFSET, cr1); } /************************************************************************************ |