/* I2C CR1 */
-#define CR1_POS 11
+#define CR1_POS_SET ((uint16_t)0x800)
+#define CR1_POS_RESET (~CR1_POS_SET)
/* I2C Status */
#define SR1_PECERR 12
#define SR1_ARLO 9
#define SR1_BERR 8
#define SR1_TXE 7
-#define SR1_RXE 6
+#define SR1_RXNE 6
#define SR1_ADDR 1
#define SR1_BTF 2
#define SR1_SB 0
BV(SR1_ARLO) | \
BV(SR1_BERR))
-
-
struct stm32_i2c
{
reg16_t CR1;