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stm32: support i2c3 properly

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I2C3 is on many parts, but wasn't properly supported with the register
definitions.  Declare them centrally, just depending on the memorymap
defining them. On some parts, the rcc bits were defined, but not the
base registers.

Fixes: https://github.com/libopencm3/libopencm3/issues/820
This commit is contained in:
Karl Palsson
2018-07-29 20:53:38 +00:00
parent b8ede60d9d
commit 0e58ee2f65
7 changed files with 34 additions and 6 deletions
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include/libopencm3/stm32/l0/memorymap.h
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@@ -51,6 +51,7 @@
#define CRS_BASE (PERIPH_BASE_APB1 + 0x6C00)
#define POWER_CONTROL_BASE (PERIPH_BASE_APB1 + 0x7000)
#define DAC_BASE (PERIPH_BASE_APB1 + 0x7400)
#define I2C3_BASE (PERIPH_BASE_APB1 + 0x7800)
#define LPTIM1_BASE (PERIPH_BASE_APB1 + 0x7c00)