cpu/stm_common: Refactor and fix implementation for i2c_2

Refactors i2c_2 to match the structure of i2c_1 better. Corrects functionality issues. Allows the common implementation of read_regs and write_regs. Documents constraints of hardware. Matches error messages with API.
RIOT-OS · Dec 19, 2018 · 8a5069c · 8a5069c
1 parent 5c4b398
commit 8a5069c
Show file tree

Hide file tree

Showing 2 changed files with 139 additions and 245 deletions.
diff --git a/cpu/stm32_common/include/periph_cpu_common.h b/cpu/stm32_common/include/periph_cpu_common.h
@@ -156,6 +156,11 @@ typedef uint32_t gpio_t;
 #define PERIPH_I2C_NEED_READ_REG
 /** Use write reg function from periph common */
 #define PERIPH_I2C_NEED_WRITE_REG
+#if defined(CPU_FAM_STM32F1) || defined(CPU_FAM_STM32F2) || \
+    defined(CPU_FAM_STM32L1) || defined(CPU_FAM_STM32F4)
+#define PERIPH_I2C_NEED_READ_REGS
+#define PERIPH_I2C_NEED_WRITE_REGS
+#endif
 /** @} */
 
 /**