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cpu stm32f1 periph spi: simplify condition

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This commit is contained in:
Oleg Hahm 2015-12-03 17:41:21 +01:00
parent 6f0d05e725
commit aa3ef774d0
2 changed files with 3 additions and 3 deletions
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2
boards/spark-core/system_stm32f1.c
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@ -41,7 +41,7 @@ static void set_system_clock(void)
} }
while ((HSE_status == 0) && (startup_counter != HSE_STARTUP_TIMEOUT)); while ((HSE_status == 0) && (startup_counter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET) { if (!(RCC->CR & RCC_CR_HSERDY)) {
HSE_status = (uint32_t)0x01; HSE_status = (uint32_t)0x01;
} }
else { else {

4
cpu/stm32f1/periph/spi.c
View File

@ -207,11 +207,11 @@ int spi_transfer_byte(spi_t dev, char out, char *in)
return -1; return -1;
} }
while ((spi->SR & SPI_SR_TXE) == RESET); while (!(spi->SR & SPI_SR_TXE));
spi->DR = out; spi->DR = out;
transferred++; transferred++;
while ((spi->SR & SPI_SR_RXNE) == RESET); while (!(spi->SR & SPI_SR_RXNE));
if (in != NULL) { if (in != NULL) {
*in = spi->DR; *in = spi->DR;
transferred++; transferred++;