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README @ d5154d0f

Last change on this file since d5154d0f was d5154d0f, checked in by Aun-Ali Zaidi <admin@…>, on 12/23/15 at 20:44:02

api: Remove deprecated Notepads

Notepads where a feature of RTEMS' tasks that simply functioned in
the same way as POSIX keys or threaded local storage (TLS). They were
introduced well before per task variables, which are also deprecated,
and were barely used in favor of their POSIX alternatives.

In addition to their scarce usage, Notepads took up unnecessary memory.
For each task:

16 32-bit integers were allocated.
A total of 64 bytes per task per thread.

This is especially critical in low memory and safety-critical applications.

They are also defined as uint32_t, and therefore are not guaranteed to
hold a pointer.

Lastly, they are not portable solutions for SMP and uniprocessor systems,
like POSIX keys and TLS.

updates #2493.

Property mode set to 100644

File size: 14.5 KB

Line
1	Description: Motorola MCF5235EVB
2	============
3	CPU: MCF5235, 150MHz
4	RAM: 16M
5	ROM: 2M
6
7	This is a Motorola evaluation board that uses the MCF5235 Coldfire CPU.
8	This board is running at 150MHz scaled from a 25MHz oscillator.
9
10	By default the BSP creates an image file for use when loaded into the
11	RAM of the evaluation board. To create an image file to boot from flash
12	add the following command to the applications Makefile:
13	LDFLAGS += -qnolinkcmds -T linkcmdsflash
14
15	Note: This BSP has also been tested with the Freescale / Axiom Manufacturing
16	(M5235BCC Business Card Controller) evaluation board.
17
18	ACKNOWLEDGEMENTS:
19	=================
20	This BSP is heavily based on the work of:
21	D. Peter Siddons
22	Brett Swimley
23	Jay Monkman
24	Eric Norum
25	Mike Bertosh
26
27	BSP NAME: mcf5235
28	BOARD: Motorola MCF5235EVB
29	CPU FAMILY: ColdFire 5235
30	CPU: MCF5235
31	COPROCESSORS: N/A
32
33	DEBUG MONITOR: dBUG
34
35	PERIPHERALS
36	===========
37	TIMERS: Four PIT (RTEMS clock is PIT3), Four Timers
38	RESOLUTION: 10 microsecond
39	SERIAL PORTS: Internal UART 1, 2 and 3
40	REAL-TIME CLOCK: none
41	DMA: none
42	VIDEO: none
43	SCSI: none
44	NETWORKING: Internal 10/100MHz FEC
45
46	DRIVER INFORMATION
47	==================
48	CLOCK DRIVER: PIT3
49	IOSUPP DRIVER: none
50	SHMSUPP: none
51	TIMER DRIVER: TIMER3
52	TTY DRIVER: UART1, 2 and 3
53
54	STDIO
55	=====
56	PORT: UART0 Terminal
57	ELECTRICAL: RS-232
58	BAUD: 19200
59	BITS PER CHARACTER: 8
60	PARITY: None
61	STOP BITS: 1
62
63
64
65	Memory map as set up by dBUG bootstrap and BSP initialization
66
67	+--------------------------------------------------+
68	0000 0000 \| 16 MByte SDRAM \| 00FF FFFF
69	0100 0000 \| --------------------------------------------- \|
70	\| Address space for future SDRAM expansion \|
71	. .
72	. .
73	. .
74	\| \| 0FFF FFFF
75	+--------------------------------------------------+
76	1000 0000 \| \|
77	. .
78	. .
79	. .
80	\| \| 1FFF FFFF
81	+--------------------------------------------------+
82	2000 0000 \| 64 kByte on-chip SRAM (RAMBAR) \|
83	. .
84	. .
85	. .
86	\| \| 2FFF FFFF
87	+--------------------------------------------------+
88	3000 0000 \| \| 30FF FFFF
89	. .
90	. .
91	. .
92	. .
93	\| \| 3FFF FFFF
94	+--------------------------------------------------+
95	4000 0000 \| Internal peripheral system (IPSBAR) \|
96	. .
97	\| \|
98	. .
99	. .
100	. .
101	\| \| 4FFF FFFF
102	+--------------------------------------------------+
103	. .
104	. .
105	. .
106	+--------------------------------------------------+
107	FFE0 0000 \| External 4 MByte Flash \|
108	. .
109	. .
110	. .
111	\| \| FFFF FFFF
112	+--------------------------------------------------+
113
114	============================================================================
115	Interrupt map
116
117	+-----+-----------------------------------------------------------------------+
118	\| \| PRIORITY \|
119	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
120	\|LEVEL\| 7 \| 6 \| 5 \| 4 \| 3 \| 2 \| 1 \| 0 \|
121	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
122	\| 7 \| \| \| \| \| \| \| \| \|
123	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
124	\| 6 \| \| \| \| \| \| \| \| \|
125	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
126	\| 5 \| \| \| \| \| \| \| \| \|
127	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
128	\| 4 \| FEC RX \| FEC TX \| \| \| \| \| \| PIT \|
129	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
130	\| 3 \| UART 0 \| UART 1 \| UART 2 \| \| \| \| \| \|
131	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
132	\| 2 \| \| \| \| \| \| \| \| \|
133	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
134	\| 1 \| \| \| \| \| \| \| \| \|
135	+-----+--------+--------+--------+--------+--------+--------+--------+--------+
136
137	============================================================================
138	TIMING TESTS
139	************************************
140	* TIME TEST 1 *
141	rtems_semaphore_create 12
142	rtems_semaphore_delete 11
143	rtems_semaphore_obtain: available 2
144	rtems_semaphore_obtain: not available -- NO_WAIT 3
145	rtems_semaphore_release: no waiting tasks 6
146	* END OF TEST 1 *
147
148	* TIME TEST 2 *
149	rtems_semaphore_obtain: not available -- caller blocks 18
150	* END OF TEST 2 *
151
152	* TIME TEST 3 *
153	rtems_semaphore_release: task readied -- preempts caller 12
154	* END OF TEST 3 *
155
156	* TIME TEST 4 *
157	rtems_task_restart: blocked task -- preempts caller 31
158	rtems_task_restart: ready task -- preempts caller 30
159	rtems_semaphore_release: task readied -- returns to caller 8
160	rtems_task_create 45
161	rtems_task_start 9
162	rtems_task_restart: suspended task -- returns to caller 14
163	rtems_task_delete: suspended task 32
164	rtems_task_restart: ready task -- returns to caller 14
165	rtems_task_restart: blocked task -- returns to caller 21
166	rtems_task_delete: blocked task 32
167	* END OF TEST 4 *
168
169	* TIME TEST 5 *
170	rtems_task_suspend: calling task 15
171	rtems_task_resume: task readied -- preempts caller 9
172	* END OF TEST 5 *
173
174	* TIME TEST 6 *
175	rtems_task_restart: calling task 12
176	rtems_task_suspend: returns to caller 5
177	rtems_task_resume: task readied -- returns to caller 6
178	rtems_task_delete: ready task 34
179	* END OF TEST 6 *
180
181	* TIME TEST 7 *
182	rtems_task_restart: suspended task -- preempts caller 22
183	* END OF TEST 7 *
184
185	* TIME TEST 9 *
186	rtems_message_queue_create 37
187	rtems_message_queue_send: no waiting tasks 11
188	rtems_message_queue_urgent: no waiting tasks 10
189	rtems_message_queue_receive: available 10
190	rtems_message_queue_flush: no messages flushed 3
191	rtems_message_queue_flush: messages flushed 5
192	rtems_message_queue_delete 17
193	* END OF TEST 9 *
194
195	* TIME TEST 10 *
196	rtems_message_queue_receive: not available -- NO_WAIT 6
197	rtems_message_queue_receive: not available -- caller blocks 20
198	* END OF TEST 10 *
199
200	* TIME TEST 11 *
201	rtems_message_queue_send: task readied -- preempts caller 17
202	* END OF TEST 11 *
203
204	* TIME TEST 12 *
205	rtems_message_queue_send: task readied -- returns to caller 12
206	* END OF TEST 12 *
207
208	* TIME TEST 13 *
209	rtems_message_queue_urgent: task readied -- preempts caller 20
210	* END OF TEST 13 *
211
212	* TIME TEST 14 *
213	rtems_message_queue_urgent: task readied -- returns to caller 14
214	* END OF TEST 14 *
215
216	* TIME TEST 15 *
217	rtems_event_receive: obtain current events 0
218	rtems_event_receive: not available -- NO_WAIT 3
219	rtems_event_receive: not available -- caller blocks 18
220	rtems_event_send: no task readied 3
221	rtems_event_receive: available 5
222	rtems_event_send: task readied -- returns to caller 7
223	* END OF TEST 15 *
224
225	* TIME TEST 16 *
226	rtems_event_send: task readied -- preempts caller 12
227	* END OF TEST 16 *
228
229	* TIME TEST 17 *
230	rtems_task_set_priority: preempts caller 21
231	* END OF TEST 17 *
232
233	* TIME TEST 18 *
234	rtems_task_delete: calling task 40
235	* END OF TEST 18 *
236
237	* TIME TEST 19 *
238	rtems_signal_catch 3
239	rtems_signal_send: returns to caller 6
240	rtems_signal_send: signal to self 11
241	exit ASR overhead: returns to calling task 8
242	exit ASR overhead: returns to preempting task 10
243	* END OF TEST 19 *
244
245	* TIME TEST 20 *
246	rtems_partition_create 13
247	rtems_region_create 24
248	rtems_partition_get_buffer: available 6
249	rtems_partition_get_buffer: not available 4
250	rtems_partition_return_buffer 6
251	rtems_partition_delete 6
252	rtems_region_get_segment: available 12
253	rtems_region_get_segment: not available -- NO_WAIT 13
254	rtems_region_return_segment: no waiting tasks 12
255	rtems_region_get_segment: not available -- caller blocks 30
256	rtems_region_return_segment: task readied -- preempts caller 40
257	rtems_region_return_segment: task readied -- returns to caller 25
258	rtems_region_delete 12
259	rtems_io_initialize 0
260	rtems_io_open 0
261	rtems_io_close 0
262	rtems_io_read 0
263	rtems_io_write 0
264	rtems_io_control 0
265	* END OF TEST 20 *
266
267	* TIME TEST 21 *
268	rtems_task_ident 31
269	rtems_message_queue_ident 30
270	rtems_semaphore_ident 34
271	rtems_partition_ident 30
272	rtems_region_ident 30
273	rtems_port_ident 29
274	rtems_timer_ident 30
275	rtems_rate_monotonic_ident 30
276	* END OF TEST 21 *
277
278	* TIME TEST 22 *
279	rtems_message_queue_broadcast: task readied -- returns to caller 19
280	rtems_message_queue_broadcast: no waiting tasks 6
281	rtems_message_queue_broadcast: task readied -- preempts caller 20
282	* END OF TEST 22 *
283
284	* TIME TEST 23 *
285	rtems_timer_create 4
286	rtems_timer_fire_after: inactive 6
287	rtems_timer_fire_after: active 6
288	rtems_timer_cancel: active 4
289	rtems_timer_cancel: inactive 3
290	rtems_timer_reset: inactive 6
291	rtems_timer_reset: active 6
292	rtems_timer_fire_when: inactive 8
293	rtems_timer_fire_when: active 8
294	rtems_timer_delete: active 5
295	rtems_timer_delete: inactive 5
296	rtems_task_wake_when 16
297	* END OF TEST 23 *
298
299	* TIME TEST 24 *
300	rtems_task_wake_after: yield -- returns to caller 2
301	rtems_task_wake_after: yields -- preempts caller 12
302	* END OF TEST 24 *
303
304	* TIME TEST 25 *
305	rtems_clock_tick 4
306	* END OF TEST 25 *
307
308	* TIME TEST 26 *
309	_ISR_Disable 0
310	_ISR_Flash 0
311	_ISR_Enable 0
312	_Thread_Disable_dispatch 0
313	_Thread_Enable_dispatch 1
314	_Thread_Set_state 4
315	_Thread_Disptach (NO FP) 9
316	context switch: no floating point contexts 7
317	context switch: self 1
318	context switch: to another task 1
319	fp context switch: restore 1st FP task 6
320	fp context switch: save idle, restore initialized 2
321	fp context switch: save idle, restore idle 6
322	fp context switch: save initialized, restore initialized 1
323	_Thread_Resume 4
324	_Thread_Unblock 3
325	_Thread_Ready 2
326	_Thread_Get 0
327	_Semaphore_Get 0
328	_Thread_Get: invalid id 0
329	* END OF TEST 26 *
330
331	* TIME TEST 27 *
332	interrupt entry overhead: returns to interrupted task 2
333	interrupt exit overhead: returns to interrupted task 1
334	interrupt entry overhead: returns to nested interrupt 1
335	interrupt exit overhead: returns to nested interrupt 1
336	interrupt entry overhead: returns to preempting task 2
337	interrupt exit overhead: returns to preempting task 12
338	* END OF TEST 27 *
339
340	* TIME TEST 28 *
341	rtems_port_create 8
342	rtems_port_external_to_internal 2
343	rtems_port_internal_to_external 3
344	rtems_port_delete 7
345	* END OF TEST 28 *
346
347	* TIME TEST 29 *
348	rtems_rate_monotonic_create 8
349	rtems_rate_monotonic_period: initiate period -- returns to caller 12
350	rtems_rate_monotonic_period: obtain status 5
351	rtems_rate_monotonic_cancel 7
352	rtems_rate_monotonic_delete: inactive 8
353	rtems_rate_monotonic_delete: active 7
354	rtems_rate_monotonic_period: conclude periods -- caller blocks 11
355	* END OF TEST 29 *
356
357	* TIME CHECKER *
358	Units may not be in microseconds for this test!!!
359	0 100000
360	Total time = 0
361	Average time = 0
362	<pause>
363	NULL timer stopped at 0
364	LOOP (1000) timer stopped at 94
365	LOOP (10000) timer stopped at 941
366	LOOP (50000) timer stopped at 4704
367	LOOP (100000) timer stopped at 9408
368	* END OF TIME CHECKER *
369
370	* TIME TEST OVERHEAD *
371	rtems_initialize_executive 0
372	rtems_shutdown_executive 0
373	rtems_task_create 0
374	rtems_task_ident 0
375	rtems_task_start 0
376	rtems_task_restart 0
377	rtems_task_delete 0
378	rtems_task_suspend 0
379	rtems_task_resume 0
380	rtems_task_set_priority 0
381	rtems_task_mode 0
382	rtems_task_wake_when 0
383	rtems_task_wake_after 0
384	rtems_interrupt_catch 0
385	rtems_clock_get 0
386	rtems_clock_set 0
387	rtems_clock_tick 0
388	<pause>
389	rtems_timer_create 0
390	rtems_timer_delete 0
391	rtems_timer_ident 0
392	rtems_timer_fire_after 0
393	rtems_timer_fire_when 0
394	rtems_timer_reset 0
395	rtems_timer_cancel 0
396	rtems_semaphore_create 0
397	rtems_semaphore_delete 0
398	rtems_semaphore_ident 0
399	rtems_semaphore_obtain 0
400	rtems_semaphore_release 0
401	rtems_message_queue_create 0
402	rtems_message_queue_ident 0
403	rtems_message_queue_delete 0
404	rtems_message_queue_send 0
405	rtems_message_queue_urgent 0
406	rtems_message_queue_broadcast 0
407	rtems_message_queue_receive 0
408	rtems_message_queue_flush 0
409	<pause>
410	rtems_event_send 0
411	rtems_event_receive 0
412	rtems_signal_catch 0
413	rtems_signal_send 0
414	rtems_partition_create 0
415	rtems_partition_ident 0
416	rtems_partition_delete 0
417	rtems_partition_get_buffer 0
418	rtems_partition_return_buffer 0
419	rtems_region_create 0
420	rtems_region_ident 0
421	rtems_region_delete 0
422	rtems_region_get_segment 0
423	rtems_region_return_segment 0
424	rtems_port_create 0
425	rtems_port_ident 0
426	rtems_port_delete 0
427	rtems_port_external_to_internal 0
428	rtems_port_internal_to_external 0
429	<pause>
430	rtems_io_initialize 0
431	rtems_io_open 0
432	rtems_io_close 0
433	rtems_io_read 0
434	rtems_io_write 0
435	rtems_io_control 0
436	rtems_fatal_error_occurred 0
437	rtems_rate_monotonic_create 0
438	rtems_rate_monotonic_ident 0
439	rtems_rate_monotonic_delete 0
440	rtems_rate_monotonic_cancel 0
441	rtems_rate_monotonic_period 0
442	rtems_multiprocessing_announce 0
443	* END OF TIME OVERHEAD *

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