zynq processor system reset

时间:2024-03-21 12:43:33

https://www.cnblogs.com/Ariza123/p/FPGA.html
zynq processor system reset
1、slowest_sync_clk:连接到系统中最慢的时钟

2、ext_reset_in:FPGA外部输入的复位信号

3、aux_reset_in:辅助复位信号,配置如ext_reset_in

4、mb_debug_sys_rst:microblaze核debug的reset输入信号

5、dcm_locked:PLL的locked信号,如果系统有PLL则连接其locked信号到这个端口,如果无,此端口置1或者悬空。

输出端口:
1、mb_reset:输出到microblaze的复位信号

2、Peripherals_aresetn:外设复位信号,低有效

3、Peripherals_areset:外设复位信号,高有效

4、Bus Structure Reset:一些桥接器的复位信号,暂时不理解,很少使用

5、Interconnect_aresetn:内部互联复位信号
zynq processor system reset
zynq processor system reset
Sequencing of reset signals coming out of reset:
a. Bus structures come out of reset (Interconnect and bridge)
b. Peripherals come out of reset 16 clock cycles later (UART, SPI, IIC)
c. The MicroBlaze™ processor comes out of reset 16 clock cycles after the peripherals

复位的顺序为bus 和interconnect ,然后是periphral ,然后是microblaze 复位

• Both the external and auxiliary reset inputs are selectable as active-High or active-Low.

外部复位和辅助复位可以选择电平。