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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2159 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-10-18 21:36:25 +00:00
parent d754ee2caf
commit f924e30fbd
1 changed files with 7 additions and 7 deletions
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14
arch/arm/src/stm32/stm32_spi.c
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@ -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);
}
/************************************************************************************