我下载了韦东山老师的100ask的buildroot包，看到buildroot/output/images/sys_config.fex 如下
问题是，1）T113可以使用jtag调试吗？2）用什么工具怎么调试，3）JTAG为什么在上述的fex文件中使用的是ph口，但是T113没有ph口啊
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;sunxi platform application
;---------------------------------------------------------------------------------------------------------
; 说明： 脚本中的字符串区分大小写，用户可以修改"="后面的数值，但是不要修改前面的字符串
; 描述gpio的形式：Port:端口+组内序号<功能分配><内部电阻状态><驱动能力><输出电平状态>
;---------------------------------------------------------------------------------------------------------
;---------------------------------------------------------------------------------
; version:版本1.00
; machine:板级文件名
;---------------------------------------------------------------------------------
[product]
version = "100"
machine = "evb1"
;----------------------------------------------------------------------------------
;debug_mode = 0-close printf, > 0-open printf
;----------------------------------------------------------------------------------
[platform]
eraseflag = 1
debug_mode = 8
;----------------------------------------------------------------------------------
; system configuration
; ?
;dcdc1_vol ---set dcdc1 voltage,mV,1600-3400,100mV/step
;dcdc2_vol ---set dcdc2 voltage,mV,600-1540,20mV/step
;dcdc3_vol ---set dcdc3 voltage,mV,600-1860,20mV/step
;dcdc4_vol ---set dcdc4 voltage,mV,600-1540,20mV/step
;dcdc5_vol ---set dcdc5 voltage,mV,1000-2550,50mV/step
;aldo2_vol ---set aldo2 voltage,mV,700-3300,100mV/step
;aldo3_vol ---set aldo3 voltage,mV,700-3300,100mV/step
;----------------------------------------------------------------------------------
;storage_type = boot medium, 0-nand, 1-sd, 2-emmc, 3-nor, 4-emmc3, 5-spinand -1(defualt)auto scan
;----------------------------------------------------------------------------------
[target]
storage_type = 5
burn_key = 0
;----------------------------------------------------------------------------------
;card_ctrl -卡量产相关的控制器选择0 |
;card_high_speed -速度模式 0为低速，1为高速|
;card_line -4：4线卡，8：8线卡|
;sdc_d1 -sdc卡数据1线信号的GPIO配置 |
;sdc_d0 -sdc卡数据0线信号的GPIO配置 |
;sdc_clk -sdc卡时钟信号的GPIO配置 |
;sdc_cmd -sdc命令信号的GPIO配置|
;sdc_d3 -sdc卡数据3线信号的GPIO配置 |
;sdc_d2 -sdc卡数据2线信号的GPIO配置 |
;----------------------------------------------------------------------------------
[card0_boot_para]
card_ctrl = 0
card_high_speed = 1
card_line = 4
sdc_d1 = port:PF0<2><1><2><default>
sdc_d0 = port:PF1<2><1><2><default>
sdc_clk = port:PF2<2><1><2><default>
sdc_cmd = port:PF3<2><1><2><default>
sdc_d3 = port:PF4<2><1><2><default>
sdc_d2 = port:PF5<2><1><2><default>
bus-width = 4
cap-sd-highspeed =
cap-wait-while-busy =
no-sdio =
no-mmc =
sunxi-power-save-mode =
;----------------------------------------------------------------------------------
;card_ctrl -卡启动控制器选择2
;card_high_speed -速度模式 0为低速，1为高速
;card_line -4：4线卡，8：8线卡
;sdc_ds -ds信号的GPIO配置
;sdc_d1 -sdc卡数据1线信号的GPIO配置
;sdc_d0 -sdc卡数据0线信号的GPIO配置
;sdc_clk -sdc卡时钟信号的GPIO配置
;sdc_cmd -sdc命令信号的GPIO配置
;sdc_d3 -sdc卡数据3线信号的GPIO配置
;sdc_d2 -sdc卡数据2线信号的GPIO配置
;sdc_d4 -sdc卡数据4线信号的GPIO配置
;sdc_d5 -sdc卡数据5线信号的GPIO配置
;sdc_d6 -sdc卡数据6线信号的GPIO配置
;sdc_d7 -sdc卡数据7线信号的GPIO配置
;sdc_emmc_rst -emmc_rst信号的GPIO配置
;sdc_ex_dly_used -ex_dly_used信号
;sdc_io_1v8 -sdc_io_1v8高速emmc模式配置
;----------------------------------------------------------------------------------
[card2_boot_para]
card_ctrl = 2
card_high_speed = 1
card_line = 4
sdc_clk = port:PC02<3><1><3><default>
sdc_cmd = port:PC03<3><1><3><default>
sdc_d0 = port:PC06<3><1><3><default>
sdc_d1 = port:PC5<3><1><3><default>
sdc_d2 = port:PC04<3><1><3><default>
sdc_d3 = port:PC07<3><1><3><default>
sdc_tm4_hs200_max_freq = 150
sdc_tm4_hs400_max_freq = 100
sdc_ex_dly_used = 2
;sdc_io_1v8 = 1
sdc_tm4_win_th = 8
sdc_dis_host_caps = 0x180
;sdc_erase = 2
;sdc_boot0_sup_1v8 = 1
;sdc_type = "tm4"
;----------------------------------------------------------------------------------
;jtag_enable |JTAG使能 |
;jtag_ms |测试模式选择输入(TMS) 的GPIO配置|
;jtag_ck |测试时钟输入(CLK) 的GPIO配置 |
;jtag_do |测试数据输出(TDO) 的GPIO配置 |
;jtag_di |测试数据输出(TDI) 的GPIO配置 |
;----------------------------------------------------------------------------------
[jtag_para]
jtag_enable = 1
jtag_ms = port:PH9<3><default><default><default>
jtag_ck = port:PH10<3><default><default><default>
jtag_do = port:PH11<3><default><default><default>
jtag_di = port:PH12<3><default><default><default>
;*****************************************************************************
;
;dram select configuration
;
;select_mode : dram模式选择, 0:不进行自动识别
; 1:gpio识别模式(dram_para, dram_para1-15, 共16组有效)
; 2:gpadc识别模式(dram_para, dram_para1-7, 共8组有效)
; 3:1个IO+gpadc识别模式(dram_para, dram_para1-15, 共16组有效)。其中IO配置优先级按select_gpio0>select_gpio1>select_gpio2>select_gpio3
;gpadc_channel : 选择gpadc通道 有效值(0-3)
;select_gpio1-4 : 选择gpio pin
;*****************************************************************************
[dram_select_para]
select_mode = 0
gpadc_channel = 1
select_gpio0 = port:PB7<0><1><default><default>
select_gpio1 = port:PB4<0><1><default><default>
select_gpio2 = port:PH1<0><1><default><default>
select_gpio3 = port:PH0<0><1><default><default>
;*****************************************************************************
;sdram configuration
;
;*****************************************************************************
[dram_para]
dram_clk = 792
dram_type = 3
dram_zq = 0x7b7bfb
dram_odt_en = 0x00
dram_para1 = 0x000010d2
dram_para2 = 0x0000
dram_mr0 = 0x1c70
dram_mr1 = 0x042
dram_mr2 = 0x18
dram_mr3 = 0x0
dram_tpr0 = 0x004A2195
dram_tpr1 = 0x02423190
dram_tpr2 = 0x0008B061
dram_tpr3 = 0xB4787896
dram_tpr4 = 0x0
dram_tpr5 = 0x48484848
dram_tpr6 = 0x00000048
dram_tpr7 = 0x1620121e
dram_tpr8 = 0x0
dram_tpr9 = 0x0
dram_tpr10 = 0x0
dram_tpr11 = 0x00340000
dram_tpr12 = 0x00000046
dram_tpr13 = 0x34000100
;----------------------------------------------------------------------------------
;twi configuration
;twi_used 0：关闭, 1：打开
;twi_port 0:twi0, 1:twi1, 2:twi2, 3:twi3, 4:twi4, 5:twi5, 6:r_twi0, 7:r_twi1
;twi_scl boot0 scl的GPIO配置
;twi_sda boot0 sda的GPIO配置
;----------------------------------------------------------------------------------
[twi_para]
twi_used = 0
twi_port = 2
twi_scl = port:PC0<3><1><default><default>
twi_sda = port:PC1<3><1><default><default>
;----------------------------------------------------------------------------------
;uart configuration
;uart_debug_port |Boot串口控制器编号 |
;uart_debug_tx |Boot串口发送的GPIO配置|
;uart_debug_rx |Boot串口接收的GPIO配置 |
;----------------------------------------------------------------------------------
[uart_para]
uart_debug_port = 3
uart_debug_tx = port:PB06<7><1><default><default>
uart_debug_rx = port:PB07<7><1><default><default>
;----------------------------------------------------------------------------------
;dram_region_mbytes :设置drm大小以bytes为单位
;----------------------------------------------------------------------------------
[secure]
dram_region_mbytes = 80
drm_region_mbytes = 0
drm_region_start_mbytes = 0
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