msp430_regs_common.h File Reference

Cortex CMSIS style definition of MSP430 registers. More...

Detailed Description

Cortex CMSIS style definition of MSP430 registers.

Todo:
This file is incomplete, not all registers are listed. Further There are probably some inconsistencies throughout the MSP430 family which need to be addressed.
Author
Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file msp430_regs_common.h.

#include <stdint.h>
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Data Structures

struct  msp430_port_t
 Common MSP GPIO Port Registers. More...
 
struct  msp430_port_p3_p6_t
 GPIO Port 3..6 (without interrupt functionality) More...
 
struct  msp430_timer_t
 Timer peripheral registers. More...
 
#define REG8   volatile uint8_t
 Shortcut to specify 8-bit wide registers.
 
#define REG16   volatile uint16_t
 Shortcut to specify 16-bit wide registers.
 

Timer SSEL Values

When using the macros in the vendor header files such as TASSEL_0 the actually used clock is non-obvious. Hence, provide aliases with obvious names.

#define TXSSEL_TXCLK   TASSEL_0
 External TxCLK as clock source.
 
#define TXSSEL_ACLK   TASSEL_1
 Auxiliary clock as clock source.
 
#define TXSSEL_SMCLK   TASSEL_2
 Sub-system master clock as clock source.
 
#define TXSSEL_INCLK   TASSEL_3
 External INCLK as clock source.
 

Timer Input Divider Values

The vendor header macros are again non-obvious in their naming, so provide better alias names.

#define TXID_DIV_1   ID_0
 Input Divider: Divide by 1.
 
#define TXID_DIV_2   ID_1
 Input Divider: Divide by 2.
 
#define TXID_DIV_4   ID_2
 Input Divider: Divide by 4.
 
#define TXID_DIV_8   ID_3
 Input Divider: Divide by 8.
 
#define TXID_DIV_Msk   ID_3
 Mask to get the TXID field.
 
#define TXID_DIV_Pos   6U
 Position of the TXID field.
 
#define TXID_DIV_MAX   3
 Maximum configuration value in the TXID field.
 

Timer Mode Control Values

The vendor header macros are again non-obvious in their naming, so provide better alies names.

#define TXMC_STOP   MC_0
 Stop Mode.
 
#define TXMC_UP   MC_1
 Up to CCR0 Mode.
 
#define TXMC_CONT   MC_2
 Continuous Mode.
 
#define TXMC_UP_DOWN   MC_3
 Up/Down Mode.
 
#define TXMC_MASK   MC_3
 Bitmask to retrieve MC field.