3.5.1.21.7 Memory Map
(Ask a Question)Apart from the auto-generation of driver functions, SmartHLS™ also generates the memory map header file to provide the following
macros to be used by the driver functions:
| Macro Name | Description |
|---|---|
| DMA_ADDR_<HLS_PROJ_NAME> | The physical address of the Soft-DMA IP core. This definition is only generated if the SmartHLS project includes the Soft-DMA IP core, for example, when the project type is MiV_SoC. When using the RISC-V processors in the HSS, SmartHLS will use the built-in hardened DMA engine in the HSS. |
| <TopFunc>_BASE_ADDR | The physical base address of the SmartHLS module <TopFunc>. This address is automatically computed by SmartHLS for each top-level function in the HLS project if using the SmartHLS SoC Flow. |
| <TopFunc>_SPAN_ADDR | The address span or address space size required for the SmartHLS module <TopFunc>. The address space required for a given SmartHLS module depends on the number and type of arguments in the C++ top-level function. |
The following is an example of the memory map file auto-generated when generating the driver functions for three HLS top modules:
#ifndef _MULTIPLE_ACCEL_TEST_MEMORY_MAP_H #define _MULTIPLE_ACCEL_TEST_MEMORY_MAP_H #ifdef __cplusplus extern "C" { #endif #define DMA_ADDR_MULTIPLE_ACCEL_TEST 0x80100000 #define HW_CONST_ADD_BASE_ADDR 0x80101000 #define HW_CONST_ADD_SPAN_ADDR 0x3c0 #define HW_CONST_MULT_BASE_ADDR 0x80101400 #define HW_CONST_MULT_SPAN_ADDR 0x3c0 #define HW_SUM_BASE_ADDR 0x80101800 #define HW_SUM_SPAN_ADDR 0x200 #ifdef __cplusplus } #endif #endif