问VHDL:将std_logic_vector转换为整数(在模拟中工作,而不是实践)EN1.下载后先运行X-HDL-4.2.1-S...
在VHDL中,std_logic_vector 类型的数据通常用于表示位级数据,而 integer 类型则用于表示整数。将 std_logic_vector 转换为 integer 可能涉及一些位操作和符号扩展,以确保转换的正确性。以下是一个详细的过程,包括如何在VHDL中实现这种转换: 1. 理解VHDL中std_logic_vector的数据表示 std_logic_vector 是一个由 std...
先将STD_LOGIC_VECTOR根据需求使用signed()转为 SIGNED 或者 使用 unsigned() 转为 UNSIGNED (signed() 和 unsigned() 在 numeric_std 中),然后使用 conv_integer() 或者 to_integer() 转为整数。conv_integer() 和 to_integer() 二者分别在不同的Library中。例:https://www.xil...
conv_integer(变量) 转换回来是conv_std_logic_vector(变量,位数)
https://community.intel.com/t5/Programmable-Devices/VHDL-integer-to-std-logic-or-std-logic-vector-conversion/m-p/177328#M56780<description><P>Hello, </P><P></P>I've some issues to convert integer to std_logic or std_logic_vector. <P></P>I need to do so for a testben...
I've some issues to convert integer to std_logic or std_logic_vector. I need to do so for a testbench which reads stimuli (binary or positive integers) in a text file, stores it as integer and needs to translate it to std_logic or std_logic_vector. I ca...
**In ASIC design, do NEVER use integer or natural for signals, use conversion functions instead** The picture below illustrates how to convert between the most common VHDL types. For example: 1signalgood_example1 :std_logic_vector(2downto0);2signalgood_example2 :std_logic_vector(3downto0...
转换过程:首先,使用conv_integer函数将16位的十六进制输入in16转换为整数tmp。然后,通过连续的除法操作,计算出十进制的千位、百位和十位。时钟同步:在时钟的上升沿,使用conv_std_logic_vector函数将计算得到的各个位的数值转换为4位的标准逻辑向量,并赋值给输出端口。3. 注意事项: 时钟使用:虽然...
三、包含 The function provided by the std_logic_arith library can't convert a std_logic_vector to an integer because it is impossible to determine if it represents an unsigned or signed value.Functions that do this are included in the std_logic_unsigned and std_logic_signed ...
Section_o:OUTSTD_LOGIC_VECTOR(7DOWNTO0));functionconvert(BCD:STD_LOGIC_VECTOR(3DOWNTO0))returnSTD_LOGIC_VECTORisvariableSection:STD_LOGIC_VECTOR(7DOWNTO0);beginCaseBCDiswhen"0000"=>Section:="00111111";--段码表———---when"0001"=>Section:="00000110";--0x3f,0x06,0x5b,0x4f,0x66,when...