at91sam9260_inc.h

针对at91系列的arm的启动代码的编写有一个整体的说明

// -------- PMC_SCER : (PMC Offset: 0x0) System Clock Enable Register --------
#define AT91C_PMC_PCK             (0x1 <<  0) // (PMC) Processor Clock
#define AT91C_PMC_UHP             (0x1 <<  6) // (PMC) USB Host Port Clock
#define AT91C_PMC_UDP             (0x1 <<  7) // (PMC) USB Device Port Clock
#define AT91C_PMC_PCK0            (0x1 <<  8) // (PMC) Programmable Clock Output
#define AT91C_PMC_PCK1            (0x1 <<  9) // (PMC) Programmable Clock Output
#define AT91C_PMC_HCK0            (0x1 << 16) // (PMC) AHB UHP Clock Output
#define AT91C_PMC_HCK1            (0x1 << 17) // (PMC) AHB LCDC Clock Output
// -------- PMC_SCDR : (PMC Offset: 0x4) System Clock Disable Register --------
// -------- PMC_SCSR : (PMC Offset: 0x8) System Clock Status Register --------
// -------- CKGR_MOR : (PMC Offset: 0x20) Main Oscillator Register --------
// -------- CKGR_MCFR : (PMC Offset: 0x24) Main Clock Frequency Register --------
// -------- CKGR_PLLAR : (PMC Offset: 0x28) PLL A Register --------
// -------- CKGR_PLLBR : (PMC Offset: 0x2c) PLL B Register --------
// -------- PMC_MCKR : (PMC Offset: 0x30) Master Clock Register --------
#define AT91C_PMC_CSS             (0x3 <<  0) // (PMC) Programmable Clock Selection
#define 	AT91C_PMC_CSS_SLOW_CLK             (0x0) // (PMC) Slow Clock is selected
#define 	AT91C_PMC_CSS_MAIN_CLK             (0x1) // (PMC) Main Clock is selected
#define 	AT91C_PMC_CSS_PLLA_CLK             (0x2) // (PMC) Clock from PLL A is selected
#define 	AT91C_PMC_CSS_PLLB_CLK             (0x3) // (PMC) Clock from PLL B is selected
#define AT91C_PMC_PRES            (0x7 <<  2) // (PMC) Programmable Clock Prescaler
#define 	AT91C_PMC_PRES_CLK                  (0x0 <<  2) // (PMC) Selected clock
#define 	AT91C_PMC_PRES_CLK_2                (0x1 <<  2) // (PMC) Selected clock divided by 2
#define 	AT91C_PMC_PRES_CLK_4                (0x2 <<  2) // (PMC) Selected clock divided by 4
#define 	AT91C_PMC_PRES_CLK_8                (0x3 <<  2) // (PMC) Selected clock divided by 8
#define 	AT91C_PMC_PRES_CLK_16               (0x4 <<  2) // (PMC) Selected clock divided by 16
#define 	AT91C_PMC_PRES_CLK_32               (0x5 <<  2) // (PMC) Selected clock divided by 32
#define 	AT91C_PMC_PRES_CLK_64               (0x6 <<  2) // (PMC) Selected clock divided by 64
#define AT91C_PMC_MDIV            (0x3 <<  8) // (PMC) Master Clock Division
#define 	AT91C_PMC_MDIV_1                    (0x0 <<  8) // (PMC) The master clock and the processor clock are the same
#define 	AT91C_PMC_MDIV_2                    (0x1 <<  8) // (PMC) The processor clock is twice as fast as the master clock
#define 	AT91C_PMC_MDIV_3                    (0x2 <<  8) // (PMC) The processor clock is four times faster than the master clock
// -------- PMC_PCKR : (PMC Offset: 0x40) Programmable Clock Register --------
// -------- PMC_IER : (PMC Offset: 0x60) PMC Interrupt Enable Register --------
#define AT91C_PMC_MOSCS           (0x1 <<  0) // (PMC) MOSC Status/Enable/Disable/Mask
#define AT91C_PMC_LOCKA           (0x1 <<  1) // (PMC) PLL A Status/Enable/Disable/Mask
#define AT91C_PMC_LOCKB           (0x1 <<  2) // (PMC) PLL B Status/Enable/Disable/Mask
#define AT91C_PMC_MCKRDY          (0x1 <<  3) // (PMC) Master Clock Status/Enable/Disable/Mask
#define AT91C_PMC_PCK0RDY         (0x1 <<  8) // (PMC) PCK0_RDY Status/Enable/Disable/Mask
#define AT91C_PMC_PCK1RDY         (0x1 <<  9) // (PMC) PCK1_RDY Status/Enable/Disable/Mask
// -------- PMC_IDR : (PMC Offset: 0x64) PMC Interrupt Disable Register --------
// -------- PMC_SR : (PMC Offset: 0x68) PMC Status Register --------
// -------- PMC_IMR : (PMC Offset: 0x6c) PMC Interrupt Mask Register --------

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Reset Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_RSTC structure ***
#define RSTC_RCR        ( 0) // Reset Control Register
#define RSTC_RSR        ( 4) // Reset Status Register
#define RSTC_RMR        ( 8) // Reset Mode Register
// -------- RSTC_RCR : (RSTC Offset: 0x0) Reset Control Register --------
#define AT91C_RSTC_PROCRST        (0x1 <<  0) // (RSTC) Processor Reset
#define AT91C_RSTC_ICERST         (0x1 <<  1) // (RSTC) ICE Interface Reset
#define AT91C_RSTC_PERRST         (0x1 <<  2) // (RSTC) Peripheral Reset
#define AT91C_RSTC_EXTRST         (0x1 <<  3) // (RSTC) External Reset
#define AT91C_RSTC_KEY            (0xFF << 24) // (RSTC) Password
// -------- RSTC_RSR : (RSTC Offset: 0x4) Reset Status Register --------
#define AT91C_RSTC_URSTS          (0x1 <<  0) // (RSTC) User Reset Status
#define AT91C_RSTC_RSTTYP         (0x7 <<  8) // (RSTC) Reset Type
#define 	AT91C_RSTC_RSTTYP_GENERAL              (0x0 <<  8) // (RSTC) General reset. Both VDDCORE and VDDBU rising.
#define 	AT91C_RSTC_RSTTYP_WAKEUP               (0x1 <<  8) // (RSTC) WakeUp Reset. VDDCORE rising.
#define 	AT91C_RSTC_RSTTYP_WATCHDOG             (0x2 <<  8) // (RSTC) Watchdog Reset. Watchdog overflow occured.
#define 	AT91C_RSTC_RSTTYP_SOFTWARE             (0x3 <<  8) // (RSTC) Software Reset. Processor reset required by the software.
#define 	AT91C_RSTC_RSTTYP_USER                 (0x4 <<  8) // (RSTC) User Reset. NRST pin detected low.
#define AT91C_RSTC_NRSTL          (0x1 << 16) // (RSTC) NRST pin level
#define AT91C_RSTC_SRCMP          (0x1 << 17) // (RSTC) Software Reset Command in Progress.
// -------- RSTC_RMR : (RSTC Offset: 0x8) Reset Mode Register --------
#define AT91C_RSTC_URSTEN         (0x1 <<  0) // (RSTC) User Reset Enable
#define AT91C_RSTC_URSTIEN        (0x1 <<  4) // (RSTC) User Reset Interrupt Enable
#define AT91C_RSTC_ERSTL          (0xF <<  8) // (RSTC) User Reset Enable

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Shut Down Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_SHDWC structure ***
#define SHDWC_SHCR      ( 0) // Shut Down Control Register
#define SHDWC_SHMR      ( 4) // Shut Down Mode Register
#define SHDWC_SHSR      ( 8) // Shut Down Status Register
// -------- SHDWC_SHCR : (SHDWC Offset: 0x0) Shut Down Control Register --------
#define AT91C_SHDWC_SHDW          (0x1 <<  0) // (SHDWC) Processor Reset
#define AT91C_SHDWC_KEY           (0xFF << 24) // (SHDWC) Shut down KEY Password
// -------- SHDWC_SHMR : (SHDWC Offset: 0x4) Shut Down Mode Register --------
#define AT91C_SHDWC_WKMODE0       (0x3 <<  0) // (SHDWC) Wake Up 0 Mode Selection
#define 	AT91C_SHDWC_WKMODE0_NONE                 (0x0) // (SHDWC) None. No detection is performed on the wake up input.
#define 	AT91C_SHDWC_WKMODE0_HIGH                 (0x1) // (SHDWC) High Level.
#define 	AT91C_SHDWC_WKMODE0_LOW                  (0x2) // (SHDWC) Low Level.
#define 	AT91C_SHDWC_WKMODE0_ANYLEVEL             (0x3) // (SHDWC) Any level change.
#define AT91C_SHDWC_CPTWK0        (0xF <<  4) // (SHDWC) Counter On Wake Up 0
#define AT91C_SHDWC_WKMODE1       (0x3 <<  8) // (SHDWC) Wake Up 1 Mode Selection
#define 	AT91C_SHDWC_WKMODE1_NONE                 (0x0 <<  8) // (SHDWC) None. No detection is performed on the wake up input.
#define 	AT91C_SHDWC_WKMODE1_HIGH                 (0x1 <<  8) // (SHDWC) High Level.
#define 	AT91C_SHDWC_WKMODE1_LOW                  (0x2 <<  8) // (SHDWC) Low Level.
#define 	AT91C_SHDWC_WKMODE1_ANYLEVEL             (0x3 <<  8) // (SHDWC) Any level change.
#define AT91C_SHDWC_CPTWK1        (0xF << 12) // (SHDWC) Counter On Wake Up 1
#define AT91C_SHDWC_RTTWKEN       (0x1 << 16) // (SHDWC) Real Time Timer Wake Up Enable
#define AT91C_SHDWC_RTCWKEN       (0x1 << 17) // (SHDWC) Real Time Clock Wake Up Enable
// -------- SHDWC_SHSR : (SHDWC Offset: 0x8) Shut Down Status Register --------
#define AT91C_SHDWC_WAKEUP0       (0x1 <<  0) // (SHDWC) Wake Up 0 Status
#define AT91C_SHDWC_WAKEUP1       (0x1 <<  1) // (SHDWC) Wake Up 1 Status
#define AT91C_SHDWC_FWKUP         (0x1 <<  2) // (SHDWC) Force Wake Up Status
#define AT91C_SHDWC_RTTWK         (0x1 << 16) // (SHDWC) Real Time Timer wake Up
#define AT91C_SHDWC_RTCWK         (0x1 << 17) // (SHDWC) Real Time Clock wake Up

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Real Time Timer Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_RTTC structure ***
#define RTTC_RTMR       ( 0) // Real-time Mode Register
#define RTTC_RTAR       ( 4) // Real-time Alarm Register
#define RTTC_RTVR       ( 8) // Real-time Value Register
#define RTTC_RTSR       (12) // Real-time Status Register
// -------- RTTC_RTMR : (RTTC Offset: 0x0) Real-time Mode Register --------
#define AT91C_RTTC_RTPRES         (0xFFFF <<  0) // (RTTC) Real-time Timer Prescaler Value
#define AT91C_RTTC_ALMIEN         (0x1 << 16) // (RTTC) Alarm Interrupt Enable
#define AT91C_RTTC_RTTINCIEN      (0x1 << 17) // (RTTC) Real Time Timer Increment Interrupt Enable
#define AT91C_RTTC_RTTRST         (0x1 << 18) // (RTTC) Real Time Timer Restart
// -------- RTTC_RTAR : (RTTC Offset: 0x4) Real-time Alarm Register --------
#define AT91C_RTTC_ALMV           (0x0 <<  0) // (RTTC) Alarm Value
// -------- RTTC_RTVR : (RTTC Offset: 0x8) Current Real-time Value Register --------
#define AT91C_RTTC_CRTV           (0x0 <<  0) // (RTTC) Current Real-time Value
// -------- RTTC_RTSR : (RTTC Offset: 0xc) Real-time Status Register --------
#define AT91C_RTTC_ALMS           (0x1 <<  0) // (RTTC) Real-time Alarm Status
#define AT91C_RTTC_RTTINC         (0x1 <<  1) // (RTTC) Real-time Timer Increment

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Periodic Interval Timer Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_PITC structure ***
#define PITC_PIMR       ( 0) // Period Interval Mode Register
#define PITC_PISR       ( 4) // Period Interval Status Register
#define PITC_PIVR       ( 8) // Period Interval Value Register
#define PITC_PIIR       (12) // Period Interval Image Register
// -------- PITC_PIMR : (PITC Offset: 0x0) Periodic Interval Mode Register --------
#define AT91C_PITC_PIV            (0xFFFFF <<  0) // (PITC) Periodic Interval Value
#define AT91C_PITC_PITEN          (0x1 << 24) // (PITC) Periodic Interval Timer Enabled
#define AT91C_PITC_PITIEN         (0x1 << 25) // (PITC) Periodic Interval Timer Interrupt Enable
// -------- PITC_PISR : (PITC Offset: 0x4) Periodic Interval Status Register --------
#define AT91C_PITC_PITS           (0x1 <<  0) // (PITC) Periodic Interval Timer Status
// -------- PITC_PIVR : (PITC Offset: 0x8) Periodic Interval Value Register --------
#define AT91C_PITC_CPIV           (0xFFFFF <<  0) // (PITC) Current Periodic Interval Value
#define AT91C_PITC_PICNT          (0xFFF << 20) // (PITC) Periodic Interval Counter
// -------- PITC_PIIR : (PITC Offset: 0xc) Periodic Interval Image Register --------

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Watchdog Timer Controller Interface
// *****************************************************************************
// *** Register offset in AT91S_WDTC structure ***
#define WDTC_WDCR       ( 0) // Watchdog Control Register
#define WDTC_WDMR       ( 4) // Watchdog Mode Register
#define WDTC_WDSR       ( 8) // Watchdog Status Register
// -------- WDTC_WDCR : (WDTC Offset: 0x0) Periodic Interval Image Register --------
#define AT91C_WDTC_WDRSTT         (0x1 <<  0) // (WDTC) Watchdog Restart
#define AT91C_WDTC_KEY            (0xFF << 24) // (WDTC) Watchdog KEY Password
// -------- WDTC_WDMR : (WDTC Offset: 0x4) Watchdog Mode Register --------
#define AT91C_WDTC_WDV            (0xFFF <<  0) // (WDTC) Watchdog Timer Restart
#define AT91C_WDTC_WDFIEN         (0x1 << 12) // (WDTC) Watchdog Fault Interrupt Enable
#define AT91C_WDTC_WDRSTEN        (0x1 << 13) // (WDTC) Watchdog Reset Enable
#define AT91C_WDTC_WDRPROC        (0x1 << 14) // (WDTC) Watchdog Timer Restart
#define AT91C_WDTC_WDDIS          (0x1 << 15) // (WDTC) Watchdog Disable
#define AT91C_WDTC_WDD            (0xFFF << 16) // (WDTC) Watchdog Delta Value
#define AT91C_WDTC_WDDBGHLT       (0x1 << 28) // (WDTC) Watchdog Debug Halt
#define AT91C_WDTC_WDIDLEHLT      (0x1 << 29) // (WDTC) Watchdog Idle Halt
// -------- WDTC_WDSR : (WDTC Offset: 0x8) Watchdog Status Register --------
#define AT91C_WDTC_WDUNF          (0x1 <<  0) // (WDTC) Watchdog Underflow
#define AT91C_WDTC_WDERR          (0x1 <<  1) // (WDTC) Watchdog Error

// *****************************************************************************
//              SOFTWARE API DEFINITION  FOR Time