[−][src]Module tm4c129x_hal::sysctl
System Control
The SYSCTL peripheral controls clocks and power.
The TM4C129x can be clocked from the Main Oscillator or the PLL, through a divider. The Main Oscillator can be either the internal 16 MHz precision oscillator, a 4 MHz derivation of the same, or an external crystal.
SYSCTL includes the following registers:
- Device ID (class, major, minor, family, package, temperature range, )
- Brown-out reset control
- Brown-out/PLL interrupt control
- Reset cause
- Run-time clock configuration
- GPIO high-performance bus control
- System Properties
- Registers to indicate whether peripherals are present
- Registers to reset peripherals
- Registers to enable/disable clocking of peripherals
See the LM4F120 datasheet, page 228 for a full list.
Modules
| chip_id | This module is all about identifying the physical chip we're running on. |
| chip_id | This module is all about identifying the physical chip we're running on. |
Structs
| ClockSetup | Used to configure the clock generators. |
| Clocks | Frozen clock frequencies |
| PowerControl | Used to gate access to the run-time power control features of the chip. |
| Sysctl | Constrained SYSCTL peripheral. |
Enums
| CrystalFrequency | Selects which crystal is fitted to the XOSC pins. |
| Divider | Selects how much to divide the system oscillator down. |
| Domain | List of peripherals that can be enabled or disabled |
| Oscillator | Selects the system oscillator source |
| PllOutputFrequency | Selects what to divide the PLL's 400MHz down to. |
| PowerState | Select whether the peripheral should be on or off |
| RunMode | Select in which mode the peripheral should be affected |
| SystemClock | Selects the source for the system clock |
Traits
| SysctlExt | Extension trait that constrains the |
Functions
| control_power | Activate or De-Activate clocks and power to the given peripheral in the given run mode. |
| reset | Reset a peripheral |