F1C200S
如何使用J-Link GDB Server和IDA Pro除錯程式
參考資訊:
1. jtag_pdf
2. whycan_jtag
3. whycan_pinout
4. jtag_allwinner_f1c100s.cfg
F1C200S JTAG腳位(和MicroSD共用腳位)
TMS | PF0, SDC0_D1 |
---|---|
TDI | PF1, SDC0_D0 |
TDO | PF3, SDC0_CMD |
TCK | PF5, SDC0_D2 |
連接J-Link
main.s
.global _start .equiv GPIO_BASE, 0x01c20800 .equiv PA, (0 * 0x24) .equiv PORT_CFG0, 0x00 .equiv PORT_DATA, 0x10 .arm .text _start: b reset b . b . b . b . b . b . b . reset: ldr r0, =GPIO_BASE ldr r1, =0x1000 str r1, [r0, #(PA + PORT_CFG0)] 0: eor r1, #0x08 str r1, [r0, #(PA + PORT_DATA)] b 0b .end
main.ld
MEMORY { ram : ORIGIN = 0, LENGTH = 32K } SECTIONS { text : { *(.text*) } > ram }
編譯
$ arm-none-eabi-as -mcpu=arm9 -o main.o main.s $ arm-none-eabi-ld -T main.ld -o main.elf main.o $ arm-none-eabi-objcopy -O binary main.elf main.bin
下載程式到RAM(loadbin c:\main.bin 0)
開啟J-Link GDB Server(Init registers記得勾選)
選擇ARM 9
Listening on TCP/IP port 2331
IDA Pro載入main.bin
按下F9,選擇Remote GDB debugger
按下F9,輸入localhost 2331
接著就可以開始除錯程式