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14.RISC-V_Eclipse_Environment_Quick_Start.md

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#RISC-V eclipse 开发环境搭建

软件列表

  • eclipse
  • riscv toolchain
  • riscv openocd

eclipse

下载安装过程略

riscv toolchain

在下载页https://github.com/gnu-mcu-eclipse/riscv-none-gcc/releases选择相应平台下载。并解压，放到合适的目录。

riscv openocd

签出代码git clone https://github.com/riscv-mcu/riscv-openocd

编译

./configure --enable-cmsis-dap --enable-ftdi --prefix=安装目录路径

make

make install

配置 eclipse

配置 toolchain 路径

配置 openocd 路径

##调试设置

添加如下两行

set arch riscv:rv32
set remotetimeout 250

如果用 gd-link 调试

配置文件

adapter_khz     1000
reset_config srst_only
adapter_nsrst_assert_width 100



interface cmsis-dap

transport select jtag

#autoexit true

set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x1000563d

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 20480 -work-area-backup 0


# Work-area is a space in RAM used for flash programming
if { [info exists WORKAREASIZE] } {
   set _WORKAREASIZE $WORKAREASIZE
} else {
   set _WORKAREASIZE 0x5000
}

# Allow overriding the Flash bank size
if { [info exists FLASH_SIZE] } {
    set _FLASH_SIZE $FLASH_SIZE
} else {
    # autodetect size
    set _FLASH_SIZE 0
}

# flash size will be probed
set _FLASHNAME $_CHIPNAME.flash

flash bank $_FLASHNAME gd32vf103 0x08000000 0 0 0 $_TARGETNAME
riscv set_reset_timeout_sec 1
init

halt

如果用 sipeed riscv debugger 调试

配置文件

adapter_khz     1000

interface ftdi
ftdi_device_desc "Dual RS232"
ftdi_vid_pid 0x0403 0x6010

transport select jtag
ftdi_layout_init 0x0008 0x001b
ftdi_layout_signal nSRST -oe 0x0020 -data 0x0020

set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x1e200a6d

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME
$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 10000 -work-area-backup 1

set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME gd32vf103 0x08000000 0 0 0 $_TARGETNAME

riscv expose_csrs 3040-3071

init

halt
# We must turn on this because otherwise the IDE version debug cannot download the program into flash
#flash protect 0 0 last off