forked from Imagelibrary/rtems
a899cdd57d
Removed all uses and implementations of set_vector() function across ERC32, LEON2, and LEON3 BSPs. Replaced with rtems_interrupt_handler_install() and rtems_interrupt_entry_install(). - Added ERC32_Clear_and_unmask_interrupt() and LEON_Clear_and_unmask_interrupt() for unmasking logic previously in set_vector(). - Deleted set_vector() definitions and implementations in each BSP. - Updated related obj.yml files. - Replaced set_vector() with rtems_interrupt_catch() in shared/gnatcommon.c.
erc32
Description of SIS as related to this BSP
BSP NAME: sis
BOARD: any based on the European Space Agency's ERC32
BUS: N/A
CPU FAMILY: sparc
CPU: ERC32 (SPARC V7 + on-CPU peripherals)
based on Cypress 601/602
COPROCESSORS: on-chip 602 compatible FPU
MODE: 32 bit mode
DEBUG MONITOR: none
PERIPHERALS
TIMERS:
NAME: General Purpose Timer
RESOLUTION: 50 nanoseconds - 12.8 microseconds
NAME: Real Time Clock Timer
RESOLUTION: 50 nanoseconds - 3.2768 milliseconds
NAME: Watchdog Timer
RESOLUTION: XXX
SERIAL PORTS: 2 using on-chip UART
REAL-TIME CLOCK: none
DMA: on-chip
VIDEO: none
SCSI: none
NETWORKING: none
DRIVER INFORMATION
CLOCK DRIVER: ERC32 internal Real Time Clock Timer
IOSUPP DRIVER: N/A
SHMSUPP: N/A
TIMER DRIVER: ERC32 internal General Purpose Timer
CONSOLE DRIVER: ERC32 internal UART
STDIO
PORT: Channel A
ELECTRICAL: na since using simulator
BAUD: na
BITS PER CHARACTER: na
PARITY: na
STOP BITS: na
Notes
ERC32 BSP only supports single processor operations.
A nice feature of this BSP is that the RAM and PROM size are set in the linkcmds file and the startup code programs the Memory Configuration Register based on those sizes.
The Watchdog Timer is disabled.
This code was developed and tested entirely using the SPARC Instruction Simulator (SIS) for the ERC32. All tests were known to run correctly against sis v1.7.
Memory Map
0x00000000 - 0x00000000 + _PROM_SIZE code and initialized data
0x01f80000 on chip peripherals
0x00000000 - 0x02000000 + _RAM_SIZE destination for initialized data
BSS (i.e. unitialized data)
C Heap (i.e. malloc area)
RTEMS Workspace
The C heap is assigned all memory between the end of the BSS and the
RTEMS Workspace. The size of the RTEMS Workspace is based on that
specified in the application's configuration table.