diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-11 17:37:47 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-11 17:37:47 +0000 |
commit | 6877a8efaf6edad7dcff6412c1eb03973d080247 (patch) | |
tree | 700904d10859106a5fe5d49650d3ff89d9e5ea94 /nuttx/arch/pjrc-8051/src | |
parent | 8404d53e7285cad8c64992658a84a3d6809cef27 (diff) | |
download | px4-nuttx-6877a8efaf6edad7dcff6412c1eb03973d080247.tar.gz px4-nuttx-6877a8efaf6edad7dcff6412c1eb03973d080247.tar.bz2 px4-nuttx-6877a8efaf6edad7dcff6412c1eb03973d080247.zip |
task_create now accepts variable number of arguments; 8051 bringup changes
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@56 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/pjrc-8051/src')
-rw-r--r-- | nuttx/arch/pjrc-8051/src/Makefile | 68 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/pjrc.h | 218 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_allocateheap.c | 1 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_assert.c | 59 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_delay.c | 92 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_head.S | 20 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_initialize.c | 2 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_internal.h | 124 | ||||
-rw-r--r-- | nuttx/arch/pjrc-8051/src/up_leds.c | 105 |
9 files changed, 556 insertions, 133 deletions
diff --git a/nuttx/arch/pjrc-8051/src/Makefile b/nuttx/arch/pjrc-8051/src/Makefile index b05d231f9..628d239a2 100644 --- a/nuttx/arch/pjrc-8051/src/Makefile +++ b/nuttx/arch/pjrc-8051/src/Makefile @@ -48,7 +48,8 @@ CSRCS = up_initialize.c up_idle.c up_interruptcontext.c \ up_releasepending.c up_reprioritizertr.c \ up_exit.c up_assert.c up_allocateheap.c \ up_irq.c up_savecontext.c up_restorecontext.c \ - up_timerisr.c up_putc.c up_debug.c + up_timerisr.c up_putc.c up_debug.c up_leds.c \ + up_delay.c COBJS = $(CSRCS:.c=$(OBJEXT)) SRCS = $(SSRCS) $(CSRCS) OBJS = $(AOBJS) $(COBJS) @@ -64,16 +65,40 @@ LINKLIBS = LDPATHES = $(addprefix -L$(TOPDIR)/,$(dir $(LINKLIBS))) LDLIBS = $(addprefix -l,$(notdir $(LINKLIBS))) +IRAM_SIZE = 0x100 +DEF_STACK_BASE = 0x24 LDFLAGS = --model-large --nostdlib \ - --data-loc 0x30 --iram-size 0x100 \ + --data-loc $(DEF_STACK_BASE) --iram-size $(IRAM_SIZE) \ --code-loc 0x2100 --code-size 0x5f40 \ - --xram-loc 0x0100 --xram-size 0x1f00 + --xram-loc $(IRAM_SIZE) --xram-size 0x1f00 DEPSRCS = $(SRCS) $(LINKSSRCS) -HEAP1_BASE = ${shell cat pass1.mem | grep "EXTERNAL RAM" | sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f5} -HEAP2_BASE = ${shell cat pass1.mem | grep "ROM/EPROM/FLASH" | sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f4} -STACK_BASE = ${shell cat pass1.mem | grep "Stack starts" | cut -d' ' -f4} +HEAP1_BASE = ${shell \ + if [ -e pass1.mem ]; then \ + cat pass1.mem | grep "EXTERNAL RAM" | \ + sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f5 ; \ + else \ + echo $(IRAM_SIZE) ; \ + fi \ + } +DEF_HEAP2_BASE = 0x6000 +HEAP2_BASE = ${shell \ + if [ -e pass1.mem ]; then \ + cat pass1.mem | grep "ROM/EPROM/FLASH" | \ + sed -e "s/[ ][ ]*/ /g" | cut -d' ' -f4 ; \ + else \ + echo $(DEF_HEAP2_BASE) ; \ + fi \ + } +STACK_BASE = ${shell \ + if [ -e pass1.mem ]; then \ + cat pass1.mem | grep "Stack starts" | \ + cut -d' ' -f4 ; \ + else \ + echo $(DEF_STACK_BASE) ; \ + fi \ + } all: up_head$(OBJEXT) libarch$(LIBEXT) @@ -93,19 +118,24 @@ pass1.mem: up_mem.h: pass1.mem @echo "#ifndef __ARCH_MEM_H" >up_mem.h @echo "#define __ARCH_MEM_H" >>up_mem.h - @if [ -e pass1.mem ]; then \ - echo "#define UP_STACK_BASE $(STACK_BASE)" >>up_mem.h ; \ - echo "#define UP_HEAP1_BASE $(HEAP1_BASE)" >> up_mem.h ; \ - echo "#define UP_HEAP1_END 0x2000" >> up_mem.h ; \ - echo "#define UP_HEAP2_BASE $(HEAP2_BASE)" >> up_mem.h ; \ - echo "#define UP_HEAP2_END 0x8000" >> up_mem.h ; \ - else \ - echo "#define UP_STACK_BASE 0x30" >>up_mem.h ; \ - echo "#define UP_HEAP1_BASE 0x0100" >> up_mem.h ; \ - echo "#define UP_HEAP1_END 0x2000" >> up_mem.h ; \ - echo "#define UP_HEAP2_BASE 0x6000" >> up_mem.h ; \ - echo "#define UP_HEAP2_END 0x8000" >> up_mem.h ; \ - fi + @echo "" >>up_mem.h + @echo "#define UP_DEFAULT_STACK_BASE $(DEF_STACK_BASE)" >>up_mem.h + @echo "#define UP_DEFAULT_HEAP1_BASE $(IRAM_SIZE)" >> up_mem.h + @echo "#define UP_DEFAULT_HEAP2_BASE $(DEF_HEAP2_BASE)" >> up_mem.h + @echo "" >>up_mem.h + @echo "#define UP_STACK_BASE $(STACK_BASE)" >>up_mem.h + @echo "#if UP_STACK_BASE > UP_DEFAULT_STACK_BASE" >>up_mem.h + @echo "# error \"Stack overlap: $(DEF_STACK_BASE) < $(STACK_BASE)\"" >>up_mem.h + @echo "#elif UP_STACK_BASE < UP_DEFAULT_STACK_BASE" >>up_mem.h + @echo "# warning \"Wasted stack: $(DEF_STACK_BASE) > $(STACK_BASE)\"" >>up_mem.h + @echo "#endif" >>up_mem.h + @echo "" >>up_mem.h + @echo "#define UP_HEAP1_BASE $(HEAP1_BASE)" >> up_mem.h + @echo "#define UP_HEAP1_END 0x2000" >> up_mem.h + @echo "" >>up_mem.h + @echo "#define UP_HEAP2_BASE $(HEAP2_BASE)" >> up_mem.h + @echo "#define UP_HEAP2_END 0x8000" >> up_mem.h + @echo "" >>up_mem.h @echo "#endif /* __ARCH_MEM_H */" >>up_mem.h # Combine all objects in this directory into a library diff --git a/nuttx/arch/pjrc-8051/src/pjrc.h b/nuttx/arch/pjrc-8051/src/pjrc.h new file mode 100644 index 000000000..41f5a7e21 --- /dev/null +++ b/nuttx/arch/pjrc-8051/src/pjrc.h @@ -0,0 +1,218 @@ +/************************************************************************** + * pjrc.h + * + * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + **************************************************************************/ + +#ifndef __PJRC_H +#define __PJRC_H + +/************************************************************************** + * Included Files + **************************************************************************/ + +#include <sys/types.h> + +/************************************************************************** + * Public Definitions + **************************************************************************/ + +/************************************************************************** + * Public Types + **************************************************************************/ + +/************************************************************************** + * Public Variables + **************************************************************************/ + +/* Memory Map + * + * BEGIN END DESCRIPTION + * 0x0000 0x1fff CODE: ROM containg PAULMON2 + * DATA: RAM for program variables + * 0x2000 0x7fff COMMON: RAM for program code or + * variables + * 0x8000 0xf7ff COMMON: FLASH for program code + * 0xf800 0xfeff COMMON: Peripherals + * 0xff00 0xffff COMMON: unused + * + * Program code may be loaded at the RAM location 0x2000-0x7fff + * for testing. If loaded into the FLASH location at + * 0x8000-0xf7ff, PAULMON2 will automatically write the program + * into flash. The program is configured in the RAM-based test + * configuration: + */ + +#define RAM_BLOCK_START IRAM_SIZE +#define RAM_BLOCK_END 0x1fff + +#define PROGRAM_BASE 0x2000 +#define PROGRAM_END 0x7fff + +#define FLASH_BASE 0x8000 +#define FLASH_END 0xf7ff + +/* Well-known entry points to access PAULMON2's built-in functions */ + +#define PM2_ENTRY_PHEX1 0x002e +#define PM2_ENTRY_COUT 0x0030 +#define PM2_ENTRY_CIN 0x0032 +#define PM2_ENTRY_PHEX 0x0034 +#define PM2_ENTRY_PHEX16 0x0036 +#define PM2_ENTRY_PSTR 0x0038 +#define PM2_ENTRY_ESC 0x003e +#define PM2_ENTRY_UPPER 0x0040 +#define PM2_ENTRY_PINT8U 0x004D +#define PM2_ENTRY_PINT8 0x0050 +#define PM2_ENTRY_PINT16U 0x0053 +#define PM2_ENTRY_NEWLINE 0x0048 +#define PM2_ENTRY_PRGM 0x0059 +#define PM2_ENTRY_ERBLOCK 0x0067 + +/* PAULMON2 captures all interrupt vectors in ROM but relays them + * through the following RAM addresses: + */ + +#define PM2_VECTOR_BASE PROGRAM_BASE +#define PM2_VECTOR_EXTINT0 (PM2_VECTOR_BASE + 3) +#define PM2_VECTOR_TIMER0 (PM2_VECTOR_BASE + 11) +#define PM2_VECTOR_EXTINT1 (PM2_VECTOR_BASE + 19) +#define PM2_VECTOR_TIMER1 (PM2_VECTOR_BASE + 27) +#define PM2_VECTOR_UART (PM2_VECTOR_BASE + 35) +#define PM2_VECTOR_TIMER2 (PM2_VECTOR_BASE + 43) + +/* Peripheral Mapping + * + * Begin End Peripheral Addr Acc Function + * F800 F8FF 82C55 (A, B, C) F800 R/W Port A + * F801 R/W Port B + * F802 R/W Port C + * F803 W Config A,B,C + * F900 F9FF 82C55 (D, E, F) F900 R/W Port D + * F901 R/W Port E (LEDs) + * F902 R/W Port F + * F903 W Config D,E,F + * FA00 FAFF User Expansion + * FB00 FBFF User Expansion + * FC00 FCFF User Expansion + * FD00 FDFF User Expansion + * FE00 FEFF LCD Port FE00 W Command Register + * FE01 R Status Register + * FE02 W Display or CGRAM Buffer + * FE03 R " " "" " " " " + * + * These are the memory-mapped locations used to access the two 82C55 + * chips + */ + +#ifndef __ASSEMBLY__ +xdata at 0xF800 ubyte p82c55_port_a; +xdata at 0xF801 ubyte p82c55_port_b; +xdata at 0xF802 ubyte p82c55_port_c; +xdata at 0xF803 ubyte p82c55_abc_config; +xdata at 0xF900 ubyte p82c55_port_d; +xdata at 0xF901 ubyte p82c55_port_e; +xdata at 0xF902 ubyte p82c55_port_f; +xdata at 0xF903 ubyte p82c55_def_config; +#endif + +/* LED (Port E) bit definitions */ + +#define LED_STARTED 0 +#define LED_HEAPALLOCATE 1 +#define LED_IRQSENABLED 2 +#define LED_UNUSED1 3 +#define LED_UNUSED2 4 +#define LED_INIRQ 5 +#define LED_ASSERTION 6 +#define LED_PANIC 7 + +/* Registers. 8052 regiser definitions are provided in the SDCC header + * file 8052.h. However, a few SFR registers are missing from that + * file (they can be found in mcs51reg.h, but that file is too much + * when the following simple addtions do the job). + */ + +#ifndef __ASSEMBLY__ +sfr at 0xc9 T2MOD ; +#endif + +/* Timing information. + * + * The PJRC board is based on a standard 87C52 CPU clocked at 22.1184 MHz. + * The CPU clock is divided by 12 to yield a clock frequency of 1.8432 MHz. + */ + +#define CPU_CLOCK_HZ 22118400L +#define TIMER_CLOCK_HZ 1843200L + +/* The 87C52 has three timers, timer 0, timer 1, and timer 2. On the PJRC + * board, timer 1 and 2 have dedicated functions. They provide baud support + * support for the boards two serial ports. Unfortunately, only timer 2 + * can generate the accurate 100Hz timer desired by the OS. + * + * Timer 0 provides only a 8-bit auto-reload mode. + */ + +#define CONFIG_80C52_TIMER2 1 +#ifdef CONFIG_80C52_TIMER2 + +/* To use timer 2 as the 100Hz system timer, we need to calculate a 16-bit + * reload value that results in 100Hz overflow interrupts. That value + * is given by: + * + * Timer ticks = TIMER_CLOCK_HZ / (desired ticks-per-second) + * = 18432 + * Capture value = 0xffff - (Timer ticks) + * = 47103 = 0x67ff + */ + +# define TIMER2_CAPTURE_LOW 0xff +# define TIMER2_CAPTURE_HIGH 0x67 + +#else + +/* Timer 0, mode 0 can be used as a system timer. In that mode, the + * 1.8432 is further divided by 32. A single 8-bit value is incremented + * at 57600 Hz, which results in 225 Timer 0 overflow interrupts per + * second. + */ + +# warning "No support for timer 0 as the system timer" + +#endif + +/************************************************************************** + * Public Function Prototypes + **************************************************************************/ + +#endif /* __PJRC_H */ diff --git a/nuttx/arch/pjrc-8051/src/up_allocateheap.c b/nuttx/arch/pjrc-8051/src/up_allocateheap.c index bdbe464b4..745cadb60 100644 --- a/nuttx/arch/pjrc-8051/src/up_allocateheap.c +++ b/nuttx/arch/pjrc-8051/src/up_allocateheap.c @@ -77,6 +77,7 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size) { *heap_start = (FAR void*)UP_HEAP1_BASE; *heap_size = UP_HEAP1_END - UP_HEAP1_BASE; + up_ledon(LED_HEAPALLOCATE); } #if CONFIG_MM_REGIONS > 1 diff --git a/nuttx/arch/pjrc-8051/src/up_assert.c b/nuttx/arch/pjrc-8051/src/up_assert.c index 277494c42..6fc77bec9 100644 --- a/nuttx/arch/pjrc-8051/src/up_assert.c +++ b/nuttx/arch/pjrc-8051/src/up_assert.c @@ -41,8 +41,10 @@ #include <sys/types.h> #include <stdlib.h> #include <assert.h> +#include <sched.h> #include <debug.h> #include <8052.h> +#include "os_internal.h" #include "up_internal.h" #include "up_mem.h" @@ -59,6 +61,33 @@ ************************************************************/ /************************************************************ + * Name: _up_assert + ************************************************************/ + +static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */ +{ + /* Are we in an interrupt handler or the idle task? */ + + if (g_irqtos || ((FAR _TCB*)g_readytorun.head)->pid == 0) + { + (void)irqsave(); + for(;;) + { +#ifdef CONFIG_8051_LEDS + up_ledon(LED_PANIC); + up_delay(250); + up_ledoff(LED_PANIC); + up_delay(250); +#endif + } + } + else + { + exit(errorcode); + } +} + +/************************************************************ * Public Functions ************************************************************/ @@ -68,9 +97,20 @@ void up_assert(void) { - dbg("Assertion failed\n"); +#if CONFIG_TASK_NAME_SIZE > 0 + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); + +#if CONFIG_TASK_NAME_SIZE > 0 + lldbg("%s: Assertion failed\n", rtcb->name); +#else + lldbg("Assertion failed\n"); +#endif + up_dumpstack(); - exit(EXIT_FAILURE); + _up_assert(EXIT_FAILURE); } /************************************************************ @@ -79,7 +119,18 @@ void up_assert(void) void up_assert_code(int errorcode) { - dbg("Assertion failed with error code: %d\n", errorcode); +#if CONFIG_TASK_NAME_SIZE > 0 + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); + +#if CONFIG_TASK_NAME_SIZE > 0 + lldbg("%s: Assertion failed, error=%d\n", rtcb->name, errorcode); +#else + lldbg("Assertion failed , error=%d\n", errorcode); +#endif + up_dumpstack(); - exit(errorcode); + _up_assert(errorcode); } diff --git a/nuttx/arch/pjrc-8051/src/up_delay.c b/nuttx/arch/pjrc-8051/src/up_delay.c new file mode 100644 index 000000000..7b682033f --- /dev/null +++ b/nuttx/arch/pjrc-8051/src/up_delay.c @@ -0,0 +1,92 @@ +/************************************************************ + * up_delay.c + * + * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************/ + +/************************************************************ + * Included Files + ************************************************************/ + +#include <nuttx/config.h> +#include "up_internal.h" + +/************************************************************ + * Definitions + ************************************************************/ + +/************************************************************ + * Private Types + ************************************************************/ + +/************************************************************ + * Private Function Prototypes + ************************************************************/ + +/************************************************************ + * Private Variables + ************************************************************/ + +/************************************************************ + * Private Functions + ************************************************************/ + + +/************************************************************ + * Public Funtions + ************************************************************/ + +/************************************************************ + * Name: up_delay + * + * Description: + * Delay inline for the requested number of milliseconds. + * NOT multi-tasking friendly. + * + ************************************************************/ + +void up_delay(ubyte milliseconds) __naked +{ + _asm + mov r0, dpl +00001$: mov r1, #230 +00002$: nop + nop + nop + nop + nop + nop + djnz r1, 00002$ + djnz r0, 00001$ + ret + _endasm; +} diff --git a/nuttx/arch/pjrc-8051/src/up_head.S b/nuttx/arch/pjrc-8051/src/up_head.S index 35acea2db..33d9db3dd 100644 --- a/nuttx/arch/pjrc-8051/src/up_head.S +++ b/nuttx/arch/pjrc-8051/src/up_head.S @@ -37,6 +37,7 @@ * Included Files ************************************************************/ +#include <nuttx/config.h> #include <nuttx/irq.h> #include "up_internal.h" @@ -123,6 +124,11 @@ start: mov sp, #(STACK_BASE-1) + +#ifdef CONFIG_8051_LEDS + lcall _up_ledinit +#endif + ljmp _os_start /************************************************************ @@ -170,8 +176,14 @@ _up_interrupt: /* Save the IRQ number in r3 */ +#ifdef CONFIG_8051_LEDS + push acc + mov dpl, #LED_INIRQ + lcall _up_ledon + pop ar2 +#else mov r2, a - +#endif /* Mark that we are in an interrupt and provide the top * of stack pointer to the context switching logic. */ @@ -229,7 +241,7 @@ _up_interrupt: orl a, r2 jz 00003$ - /* A conext switch is pending Clear g_irqcontext */ + /* A context switch is pending, clear g_irqcontext */ mov dpl, r2 mov dph, r3 @@ -319,6 +331,10 @@ _up_interrupt: */ 00003$: +#ifdef CONFIG_8051_LEDS + mov dpl, #LED_INIRQ + lcall _up_ledoff +#endif pop _bp pop psw pop ar1 diff --git a/nuttx/arch/pjrc-8051/src/up_initialize.c b/nuttx/arch/pjrc-8051/src/up_initialize.c index c8f2ef01d..d0680b6cf 100644 --- a/nuttx/arch/pjrc-8051/src/up_initialize.c +++ b/nuttx/arch/pjrc-8051/src/up_initialize.c @@ -119,6 +119,6 @@ void up_initialize(void) up_timerinit(); #endif - /* Initialize the serial console support */ + up_ledon(LED_IRQSENABLED); } diff --git a/nuttx/arch/pjrc-8051/src/up_internal.h b/nuttx/arch/pjrc-8051/src/up_internal.h index 8f27179cb..95fb97745 100644 --- a/nuttx/arch/pjrc-8051/src/up_internal.h +++ b/nuttx/arch/pjrc-8051/src/up_internal.h @@ -40,6 +40,8 @@ * Included Files **************************************************************************/ +#include "pjrc.h" + /************************************************************************** * Public Definitions **************************************************************************/ @@ -51,113 +53,6 @@ #define CONFIG_SWITCH_FRAME_DUMP 1 /* Dump frames from normal switches */ #undef CONFIG_INTERRUPT_FRAME_DUMP /* Dump frames from interrupt switches */ -/* Memory Map - * - * BEGIN END DESCRIPTION - * 0x0000 0x1fff CODE: ROM containg PAULMON2 - * DATA: RAM for program variables - * 0x2000 0x7fff COMMON: RAM for program code or - * variables - * 0x8000 0xf7ff COMMON: FLASH for program code - * 0xf800 0xfeff COMMON: Peripherals - * 0xff00 0xffff COMMON: unused - * - * Program code may be loaded at the RAM location 0x2000-0x7fff - * for testing. If loaded into the FLASH location at - * 0x8000-0xf7ff, PAULMON2 will automatically write the program - * into flash. The program is configured in the RAM-based test - * configuration: - */ - -#define RAM_BLOCK_START IRAM_SIZE -#define RAM_BLOCK_END 0x1fff - -#define PROGRAM_BASE 0x2000 -#define PROGRAM_END 0x7fff - -#define FLASH_BASE 0x8000 -#define FLASH_END 0xf7ff - -/* Well-known entry points to access PAULMON2's built-in functions */ - -#define PM2_ENTRY_PHEX1 0x002e -#define PM2_ENTRY_COUT 0x0030 -#define PM2_ENTRY_CIN 0x0032 -#define PM2_ENTRY_PHEX 0x0034 -#define PM2_ENTRY_PHEX16 0x0036 -#define PM2_ENTRY_PSTR 0x0038 -#define PM2_ENTRY_ESC 0x003e -#define PM2_ENTRY_UPPER 0x0040 -#define PM2_ENTRY_PINT8U 0x004D -#define PM2_ENTRY_PINT8 0x0050 -#define PM2_ENTRY_PINT16U 0x0053 -#define PM2_ENTRY_NEWLINE 0x0048 -#define PM2_ENTRY_PRGM 0x0059 -#define PM2_ENTRY_ERBLOCK 0x0067 - -#define PM2_VECTOR_BASE PROGRAM_BASE -#define PM2_VECTOR_EXTINT0 (PM2_VECTOR_BASE + 3) -#define PM2_VECTOR_TIMER0 (PM2_VECTOR_BASE + 11) -#define PM2_VECTOR_EXTINT1 (PM2_VECTOR_BASE + 19) -#define PM2_VECTOR_TIMER1 (PM2_VECTOR_BASE + 27) -#define PM2_VECTOR_UART (PM2_VECTOR_BASE + 35) -#define PM2_VECTOR_TIMER2 (PM2_VECTOR_BASE + 43) - -/* Registers. 8052 regiser definitions are provided in the SDCC header - * file 8052.h. However, a few SFR registers are missing from that - * file (they can be found in mcs51reg.h, but that file is too much - * when the following simple addtions do the job). - */ - -#ifndef __ASSEMBLY__ -sfr at 0xc9 T2MOD ; -#endif - -/* Timing information. - * - * The PJRC board is based on a standard 87C52 CPU clocked at 22.1184 MHz. - * The CPU clock is divided by 12 to yield a clock frequency of 1.8432 MHz. - */ - -#define CPU_CLOCK_HZ 22118400L -#define TIMER_CLOCK_HZ 1843200L - -/* The 87C52 has three timers, timer 0, timer 1, and timer 2. On the PJRC - * board, timer 1 and 2 have dedicated functions. They provide baud support - * support for the boards two serial ports. Unfortunately, only timer 2 - * can generate the accurate 100Hz timer desired by the OS. - * - * Timer 0 provides only a 8-bit auto-reload mode. - */ - -#define CONFIG_80C52_TIMER2 1 -#ifdef CONFIG_80C52_TIMER2 - -/* To use timer 2 as the 100Hz system timer, we need to calculate a 16-bit - * reload value that results in 100Hz overflow interrupts. That value - * is given by: - * - * Timer ticks = TIMER_CLOCK_HZ / (desired ticks-per-second) - * = 18432 - * Capture value = 0xffff - (Timer ticks) - * = 47103 = 0x67ff - */ - -# define TIMER2_CAPTURE_LOW 0xff -# define TIMER2_CAPTURE_HIGH 0x67 - -#else - -/* Timer 0, mode 0 can be used as a system timer. In that mode, the - * 1.8432 is further divided by 32. A single 8-bit value is incremented - * at 57600 Hz, which results in 225 Timer 0 overflow interrupts per - * second. - */ - -# warning "No support for timer 0 as the system timer" - -#endif - /************************************************************************** * Public Types **************************************************************************/ @@ -197,12 +92,15 @@ extern FAR struct xcptcontext *g_irqcontext; #if CONFIG_MM_REGIONS > 1 extern void up_addregion(void); #endif +extern void up_delay(ubyte milliseconds) __naked; extern void up_irqinitialize(void); extern void up_restorecontext(FAR struct xcptcontext *context) _naked; extern ubyte up_savecontext(FAR struct xcptcontext *context) __naked; extern void up_savestack(FAR struct xcptcontext *context, ubyte tos); extern void up_timerinit(void); +/* Defined in up_assert.c */ + #ifdef CONFIG_FRAME_DUMP extern void up_dumpstack(void); extern void up_dumpframe(FAR struct xcptcontext *context); @@ -211,5 +109,17 @@ extern void up_dumpframe(FAR struct xcptcontext *context); # define up_dumpframe(x) #endif +/* Defined in up_leds.c */ + +#ifdef CONFIG_8051_LEDS +extern void up_ledinit(void); +extern void up_ledon(int led); +extern void up_ledoff(int led); +#else +# define up_ledinit() +# define up_ledon(led) +# define up_ledoff(led) +#endif + #endif /* __ASSEMBLY */ #endif /* __ARCH_UP_INTERNAL_H */ diff --git a/nuttx/arch/pjrc-8051/src/up_leds.c b/nuttx/arch/pjrc-8051/src/up_leds.c new file mode 100644 index 000000000..2c1243601 --- /dev/null +++ b/nuttx/arch/pjrc-8051/src/up_leds.c @@ -0,0 +1,105 @@ +/************************************************************ + * up_leds.c + * + * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************/ + +/************************************************************ + * Included Files + ************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include "up_internal.h" + +/************************************************************ + * Definitions + ************************************************************/ + +/************************************************************ + * Private Data + ************************************************************/ + +static uint32 g_ledstate; + +/************************************************************ + * Private Functions + ************************************************************/ + +/************************************************************ + * Public Funtions + ************************************************************/ + +/************************************************************ + * Name: up_ledinit + ************************************************************/ + +#ifdef CONFIG_8051_LEDS +void up_ledinit(void) +{ + /* Set all ports as outputs */ + + p82c55_abc_config = 128; + p82c55_def_config = 128; + + /* Turn LED 1-7 off; turn LED 0 on */ + + g_ledstate = 0x000000fe; + p82c55_port_e = g_ledstate; +} + +/************************************************************ + * Name: up_ledon + ************************************************************/ + +void up_ledon(int led) +{ + if (led < 8) + { + g_ledstate &= ~(1 << led); + p82c55_port_e = g_ledstate; + } +} + +/************************************************************ + * Name: up_ledoff + ************************************************************/ + +void up_ledoff(int led) +{ + if (led < 8) + { + g_ledstate |= (1 << led); + p82c55_port_e = g_ledstate; + } +} +#endif /* CONFIG_8051_LEDS */ |