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[F0] Update CRCto be compatible wih RM0091 Rev. 5

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This commit is contained in:
Frantisek Burian
2014-02-05 23:48:33 +01:00
parent fc9a7260c2
commit 9c0ca88c2e
2 changed files with 35 additions and 2 deletions
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17
include/libopencm3/stm32/f0/crc.h
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@@ -45,11 +45,18 @@
/* Register definitions */
/*****************************************************************************/
/* Initial CRC Value */
#define CRC_INIT MMIO32(CRC_BASE + 0x10)
/* CRC Polynomial */
#define CRC_POL MMIO32(CRC_BASE + 0x14)
/*****************************************************************************/
/* Register values */
/*****************************************************************************/
#define CRC_CR_REV_OUT (1 << 7)
#define CRC_CR_REV_IN_SHIFT 5
#define CRC_CR_REV_IN (3 << CRC_CR_REV_IN_SHIFT)
#define CRC_CR_REV_IN_NONE (0 << CRC_CR_REV_IN_SHIFT)
@@ -57,6 +64,16 @@
#define CRC_CR_REV_IN_HALF (2 << CRC_CR_REV_IN_SHIFT)
#define CRC_CR_REV_IN_WORD (3 << CRC_CR_REV_IN_SHIFT)
#define CRC_CR_POLYSIZE_SHIFT 3
#define CRC_CR_POLYSIZE (3 << CRC_CR_POLYSIZE_SHIFT)
#define CRC_CR_POLYSIZE_32BIT (0 << CRC_CR_POLYSIZE_SHIFT)
#define CRC_CR_POLYSIZE_16BIT (1 << CRC_CR_POLYSIZE_SHIFT)
#define CRC_CR_POLYSIZE_8BIT (2 << CRC_CR_POLYSIZE_SHIFT)
#define CRC_CR_POLYSIZE_7BIT (3 << CRC_CR_POLYSIZE_SHIFT)
/* Default polynomial */
#define CRC_POL_DEFAULT 0x04C11DB7
/*****************************************************************************/
/* API definitions */
/*****************************************************************************/