diff options
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/sparc/leon/README | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon/README b/c/src/lib/libbsp/sparc/leon/README new file mode 100644 index 0000000000..93f19bb383 --- /dev/null +++ b/c/src/lib/libbsp/sparc/leon/README @@ -0,0 +1,80 @@ +# +# Description of SIS as related to this BSP +# +# $Id$ +# + +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. + |