Category: Software
Product Number: ADSP-21569
Software Version: CCES 3.0.3.0
Hello,
I integrated a SigmaStudio+ schematics in an ADSP-21569 firmware by exporting system files and adding them to the project. It works fine.
Now I would like to control some parameters directly from the DSP firmware in realtime. I parse some UART messages coming from an STM32 and depending on those messages I will act on the SS+ parameters.
The following code returns ADI_SS_SUCCESS and I hear the effect on the sound, so it works. Could you confirm me this is the right way to do and SS+ is supposed to be controlled that way in realtime? I would like to avoid future glitches and issues.
uint32_t MOD_VOLUMEC_UI_GAIN_ADDR = 466U;
float gain = 0.4f;
ADI_SS_RESULT eResult = adi_ss_updateParam(hSSnHandle, (uint32_t*)&gain, MOD_VOLUMEC_UI_GAIN_ADDR, 1U);
if(eResult != ADI_SS_SUCCESS){
printf("Problem when setting the parameter gain: %f\n", gain);
exit(-1);
}
In "schematic_PARAM.h" I have the following code:
/* Module volumeGeneral_UI - Single Control Volume */ #define MOD_VOLUMEGENERAL_UI_COUNT 2 #define MOD_VOLUMEGENERAL_UI_SCHEMATIC "DiffDXESchematic_3" #define MOD_VOLUMEGENERAL_UI_GAIN_ADDR 4 #define MOD_VOLUMEGENERAL_UI_GAIN_FIXPT 0x3F8CCCCD #define MOD_VOLUMEGENERAL_UI_GAIN_VALUE SIGMASTUDIOTYPE_FLOAT_CONVERT(1.1) #define MOD_VOLUMEGENERAL_UI_GAIN_TYPE SIGMASTUDIOTYPE_FLOAT #define MOD_VOLUMEGENERAL_UI_SLEWRATE_ADDR 3 #define MOD_VOLUMEGENERAL_UI_SLEWRATE_FIXPT 0x39800000 #define MOD_VOLUMEGENERAL_UI_SLEWRATE_VALUE SIGMASTUDIOTYPE_FLOAT_CONVERT(0.000244140625) #define MOD_VOLUMEGENERAL_UI_SLEWRATE_TYPE SIGMASTUDIOTYPE_FLOAT
From what I understand this code is for a possible MCU controling the parameters, and
SIGMASTUDIOTYPE_FLOAT_CONVERT is just an example of a possible convertion needed by this MCU. Could you please confirm this?
I am particularly curious about the uint32_t* cast to pass the address of a float in my previous code. I guess the type uint32_t is used but it could have been void*.
Thank you,
Fabien
