我有一个 DE1-SoC (Cyclone V) 板，我试图让定时器中断在 HPS 上工作。我在 Intel FPGA University Program 中找到了一个名为“interrupt_example”的示例，当我在 Intel FPGA Universioty Program 上运行它时，它运行良好。
现在我想把这个项目转移到 ARM DS，但我无法让它工作，因为每次我试图写入地址 0xFF202000 的间隔计时器时，调试器都不会继续。当我尝试在 ARM DS 中查看 0xFF202000 的内存时，我也看不到任何东西。
我正在使用相同的编译器（GCC C 4.7.3 arm-altera-eabi）并且我尝试使用相同的编译器参数：
英特尔 FPGA 监控程序
rm -f interrupt_example.c.o
arm-altera-eabi-gcc -Wall -c -g -O1 -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 interrupt_example.c -o interrupt_example.c.o
rm -f exceptions.c.o
arm-altera-eabi-gcc -Wall -c -g -O1 -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 exceptions.c -o exceptions.c.o
rm -f HPS_timer_ISR.c.o
arm-altera-eabi-gcc -Wall -c -g -O1 -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 HPS_timer_ISR.c -o HPS_timer_ISR.c.o
rm -f interval_timer_ISR.c.o
arm-altera-eabi-gcc -Wall -c -g -O1 -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 interval_timer_ISR.c -o interval_timer_ISR.c.o
rm -f pushbutton_ISR.c.o
arm-altera-eabi-gcc -Wall -c -g -O1 -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 pushbutton_ISR.c -o pushbutton_ISR.c.o
rm -f interrupt_example.axf
ARM DS
make all
'Building file: ../interrupt_example/HPS_timer_ISR.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF"interrupt_example/HPS_timer_ISR.d" -MT"interrupt_example/HPS_timer_ISR.o" -c -o "interrupt_example/HPS_timer_ISR.o" "../interrupt_example/HPS_timer_ISR.c"
'Finished building: ../interrupt_example/HPS_timer_ISR.c'
' '
'Building file: ../interrupt_example/exceptions.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF"interrupt_example/exceptions.d" -MT"interrupt_example/exceptions.o" -c -o "interrupt_example/exceptions.o" "../interrupt_example/exceptions.c"
'Finished building: ../interrupt_example/exceptions.c'
' '
'Building file: ../interrupt_example/interval_timer_ISR.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF"interrupt_example/interval_timer_ISR.d" -MT"interrupt_example/interval_timer_ISR.o" -c -o "interrupt_example/interval_timer_ISR.o" "../interrupt_example/interval_timer_ISR.c"
'Finished building: ../interrupt_example/interval_timer_ISR.c'
' '
'Building file: ../interrupt_example/pushbutton_ISR.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF"interrupt_example/pushbutton_ISR.d" -MT"interrupt_example/pushbutton_ISR.o" -c -o "interrupt_example/pushbutton_ISR.o" "../interrupt_example/pushbutton_ISR.c"
'Finished building: ../interrupt_example/pushbutton_ISR.c'
' '
'Building file: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF".metadata/.plugins/org.eclipse.cdt.make.core/specs.d" -MT".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" -c -o ".metadata/.plugins/org.eclipse.cdt.make.core/specs.o" "../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c"
'Finished building: ../.metadata/.plugins/org.eclipse.cdt.make.core/specs.c'
' '
'Building file: ../main.c'
'Invoking: GCC C Compiler 4.7.3 [arm-altera-eabi]'
arm-altera-eabi-gcc.exe -Dsoc_cv_av -I"C:\CSA\Baremetal_Hex_Disco\sw\hps\application\inc" -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include -IC:/intelFPGA/20.1/embedded/ip/altera/hps/altera_hps/hwlib/include/soc_cv_av -O1 -g3 -Wall -c -mfloat-abi=soft -march=armv7-a -mtune=cortex-a9 -mcpu=cortex-a9 -MMD -MP -MF"main.d" -MT"main.o" -c -o "main.o" "../main.c"
'Finished building: ../main.c'
' '
我也使用相同的链接器参数：
英特尔 FPGA 监控程序
arm-altera-eabi-gcc -Wl,--defsym -Wl,arm_program_mem=0x40 -Wl,--defsym -Wl,arm_available_mem_size=0x3fffffb8 -Wl,--defsym -Wl,__cs3_stack=0x3ffffff8 -Wl,--section-start -Wl,.vectors=0x0 -T"C:/intelFPGA_lite/17.0/University_Program/Monitor_Program/build/altera-socfpga-hosted-with-vectors.ld" interrupt_example.c.o exceptions.c.o HPS_timer_ISR.c.o interval_timer_ISR.c.o pushbutton_ISR.c.o -o interrupt_example.axf
ARM DS
arm-altera-eabi-gcc -T "C:\intelFPGA_lite\17.0\University_Program\Monitor_Program\build\altera-socfpga-hosted-with-vectors.ld" --exceptions -Wl,--defsym -Wl,arm_program_mem=0x40 -Wl,--defsym -Wl,arm_available_mem_size=0x3fffffb8 -Wl,--defsym -Wl,__cs3_stack=0x3ffffff8 -Wl,--section-start -Wl,.vectors=0x0 -o "Baremetal_Hex_Disco.axf" ./interrupt_example/HPS_timer_ISR.o ./interrupt_example/exceptions.o ./interrupt_example/interval_timer_ISR.o ./interrupt_example/pushbutton_ISR.o ./.metadata/.plugins/org.eclipse.cdt.make.core/specs.o ./main.o
我也尝试使用相同的预加载器，但是当我编写调试脚本时这不起作用。我不确定这是否是问题所在。如果这确实是问题所在，如果有人可以帮助我编写另一个调试脚本，我将不胜感激，因为当我尝试使用 u-boot-spl.de1-soc.srec 作为预加载器时，ARM DS 会给我带来问题。
Intel FPGA Monitor Program 中的预加载器信息
Info: Running Quartus Prime Programmer
Info: Version 17.0.0 Build 595 04/25/2017 SJ Lite Edition
Info: Copyright (C) 2017 Intel Corporation. All rights reserved.
Info: Your use of Intel Corporation's design tools, logic functions
Info: and other software and tools, and its AMPP partner logic
Info: functions, and any output files from any of the foregoing
Info: (including device programming or simulation files), and any
Info: associated documentation or information are expressly subject
Info: to the terms and conditions of the Intel Program License
Info: Subscription Agreement, the Intel Quartus Prime License Agreement,
Info: the Intel MegaCore Function License Agreement, or other
Info: applicable license agreement, including, without limitation,
Info: that your use is for the sole purpose of programming logic
Info: devices manufactured by Intel and sold by Intel or its
Info: authorized distributors. Please refer to the applicable
Info: agreement for further details.
Info: Processing started: Sun Feb 07 10:04:39 2021
Info: Command: quartus_hps --cable="DE-SoC [USB-1]" -o GDBSERVER --gdbport0=3350 --preloader=C:/intelFPGA_lite/17.0/University_Program/Monitor_Program/arm_tools/u-boot-spl.de1-soc.srec --preloaderaddr=0xffff13a0 --source=C:/Users/red25/Documents/interrupt_example.srec
Current hardware is: DE-SoC [USB-1]
Successfully change hardware frequency to 16Mhz
Found HPS at device 1
Double check JTAG chain
HPS Device IDCODE: 0x4BA00477
AHB Port is located at port 0
APB Port is located at port 1
Double check device identification ...
>>CPU0 halted at 0x2fa8.
>>Resetting HPS.
>>Downloading preloader.....
>>Program loaded. PC set to program entry (0xFFFF0000)
>>Setting vector base address register to: 0xffff0000
>>Running preloader..
>>Preloader successfully run.
>>Downloading user program.
>>Program loaded. PC set to program entry (0x0128)
>>Setting vector base address register to: 0x0
>> Hard breakpoint set.
Starting GDB Server.
ARM DS 中的调试脚本
reset
wait 5s
stop
wait
loadfile "$sdir/../../preloader/uboot-socfpga/spl/u-boot-spl" 0x0
set semihosting enabled true
delete
tbreak spl_boot_device
run
wait
loadfile "$sdir/../Debug/Baremetal_Hex_Disco.axf" 0x0
start*
正在编写 0xFF202000 的代码的反汇编看起来也相同：
英特尔 FPGA 监控程序
拆解图 Intel FPGA Monitor Program
ARM DS
我尝试了我现在能想到的一切。我真的希望有人能帮助我。先感谢您。
编辑：同时，我发现当程序尝试写入 0xFF202000 时，它在汇编中进入了一个无限循环。我对组装不是很熟悉，所以我不确定为什么会发生这种情况。 无限循环组件 0xFF202000
