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6674 spi direct boot 失败

各位好,我们现在用的是6674自制板(硅版本2),spi nor flash读写测试可以通过,根据官方给的6678 rom direct boot的教程进行dat文件的转换和烧写,烧写显示successful。烧写的程序在jtag上是可以正常跑的。

但是现在将bootmode切换至spi boot模式重新上下电后,无法启动,用示波器查看过spi的几条线,上电后片选是拉高的,spi时钟线也有几组脉冲,但是两条数据线上是没有数据的。

用jtag连上查看cpu的寄存器,DEVSTAT是9E0D,magic boot寄存器是0,。

我的spi.map配置如下

section {
boot_mode = 50
param_index = 0
options = 1
core_freq_mhz = 1000
exe_file = "led_play.i2c.ccs"
next_dev_addr_ext = 0x0
sw_pll_prediv = 1
sw_pll_mult = 16
sw_pll_postdiv = 2
sw_pll_flags = 1
addr_width = 24
n_pins = 5
csel = 0
mode = 1
c2t_delay = 0
bus_freq_mhz = 0
bus_freq_khz = 500
}

根据这些信息,能找到什么问题吗。