STM32FX_SPI_SR_OVR
sr &= ~(STM32FX_SPI_SR_OVR | STM32FX_SPI_SR_RXNE);
mask |= STM32FX_SPI_SR_RXNE | STM32FX_SPI_SR_OVR;
if (sr & STM32FX_SPI_SR_OVR) {