HAL_UARTInterruptEnable (changes)
Showing changes from revision #1 to #2:
Added | Removed | Changed
Hardware Abstraction Layer
HAL entry points from RISC OS
ยป HAL_UARTInterruptEnable
HAL_UARTInterruptEnable
(HAL entry #72)
int HAL_UARTInterruptEnable(int port, int eor, int mask)
| Entry | |
|---|---|
| port | Port number to modify |
| eor | EOR mask |
| mask | AND mask |
| Exit | |
|---|---|
| - | Returns previous interrupt state |
Use
This is an internal call for use by the DualSerial module and should not be used by user code. Instead of calling the HAL directly, user code should interact with the Serial* entries that DualSerial creates in DeviceFS.
Enables/disables interrupts for the specified port. Interrupts are modified in the following manner:
new_state = (old_state AND mask) EOR eor
The meaning of each interrupt bit is as follows:
| Bit | Meaning |
|---|---|
| 0 | Receiver Data Available (and Character Timeout) |
| 1 | Transmitter Holding Register Empty |
| 2 | Received Line Status |
| 3 | Modem Status |
See also
Information source: Kernel.Docs.HAL.Serial in CVS
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.