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View Code? Open in Web Editor NEWFreeRTOS for Cadence Tensilica HIFI 4 DSP on R329, D1-H, T113 With GCC Compiler
FreeRTOS for Cadence Tensilica HIFI 4 DSP on R329, D1-H, T113 With GCC Compiler
Then I fill data ram of embedded DSP, address translation discovered.
You can integrate these functions:
// HiFI4 DSP-viewed address offset translate to host cpu viewwed
static ptrdiff_t xlate_dsp2mpu(ptrdiff_t a)
{
const ptrdiff_t BANKSIZE = 0x08000u;
const ptrdiff_t CELLBASE = 0x10000u;
const ptrdiff_t CELLSIZE = 16;
const ptrdiff_t cellbank = (a - CELLBASE) / BANKSIZE;
const ptrdiff_t cellrow = (a - CELLBASE) % BANKSIZE / CELLSIZE; // 16 bytes granularity
const unsigned cellpos = (a % CELLSIZE); // 16 bytes granularity
if (a < CELLBASE)
return a; /* translation not needed. */
return CELLBASE +
cellbank * BANKSIZE +
CELLSIZE * ((cellrow % 2) ? (cellrow / 2) + (BANKSIZE / CELLSIZE / 2) : cellrow / 2) +
cellpos;
}
static void copy2dsp(uint8_t * pdspmap, const uint8_t * pcpu, unsigned offs, unsigned size)
{
for (; size --; ++ offs)
{
pdspmap [xlate_dsp2mpu(offs)] = pcpu [offs];
}
}
static void zero2dsp(uint8_t * pdspmap, unsigned offs, unsigned size)
{
for (; size --; ++ offs)
{
pdspmap [xlate_dsp2mpu(offs)] = 0x00;
}
}
你好!
1)编译FreeRTOS-HIFI4-DSP时提示src/main.c:13:10: fatal error: xtutil.h: No such file or directory没有找到,把对应用到的文件中注释掉,编译可以通过(系统Debian10).这不影响系统的运行吧!
2)在这个系统中是否可以调用FFT,IFFT,FIR,IIR这些函数,后期有没有实现的计划.
3)如有可能能否加个好朋友,我也有需求在HIFI4-DSP上进行产品开发,微信:13554907706. 谢谢!
你好!
编译DSP程序时,出现xtutil.h没有找到.把相应用到的都注释掉后可以正常编译.这个不会影响系统效果吧!
开发板是 Sipeed Lichee RV,系统镜像是 LicheeRV_Tina_dock_hdmi_8723ds.img
,利用了 Tina Linux 中魔改的 uboot,其中包括了 bootr 命令来给 DSP 加载 firmware。
=> echo $(boot_dsp0)
sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
=> sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
dsp0:uart config fail
dsp0:gpio init config fail
dsp0:find section err
在 /etc/fw_env.config 中添加 /dev/by-name/env
/dev/by-name/env-redund
之后通过 fw_setenv
编辑 bootdelay
dd if=dsp.elf of=/dev/mmcblk0p5
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