Following up on an earlier "getting started" question. I'm attempting to use the demo project to get some basic audio processing working.
Using CCES 3.0.3 I built and loaded the application from C:\Analog Devices\SigmaStudioPlus-Rel2.4.0\Target\Examples\DemoUc\ADSP-SC57x. As expected, this performs an audio passthrough between the coax inputs and outputs.
Using SigmaStudio+ 2.4.0, I opened the "Example for ADSP-SC5xx Dual SH Core Demo uC application". The first issue I had was that the download verification failed. I probed the SPI lines from the USBi and discovered that the MISO and MISO lines were being pulled low by the EZLITE. The cause was a bug in the demo CCES project: The SoftConfig (which uses TWI to enable/disable I/O configurations on the EZLITE board) had pushbuttons 1 and 2 enabled. This conflicted with the SPI1 MOSI/MISO signals. Altering the SoftConfig to disable the pushbuttons allowed the download to succeed.
/*
U48 Port A U48 Port B
7--------------- ~FLG3_LOOP | 7--------------- Not Used
| 6------------- ~FLG2_LOOP | | 6------------- Not Used
| | 5----------- ~FLG1_LOOP | | | 5----------- Not Used
| | | 4--------- ~FLG0_LOOP | | | | 4--------- AD2410_MASTER_SLAVE
| | | | 3------- ~LEDs_EN | | | | | 3------- ~ENGINE_RPM_OE
| | | | | 2----- ~PUSHBUTTON1_EN | | | | | | 2----- ~THUMBWHEEL_OE
| | | | | | 1--- ~PUSHBUTTON2_EN | | | | | | | 1--- ~ADAU1977_FAULT_RST_EN
| | | | | | | 0- ~PUSHBUTTON3_EN | | | | | | | | 0- ~ADAU1977_EN
| | | | | | | | | | | | | | | | |
N N N N Y N N N | X X X Y N Y N Y ( Active Y or N )
1 1 1 1 0 1 1 1 | 1 1 1 1 1 0 1 0 ( value being set )
*/
{ 0x12u, 0xF7u }, { 0x13u, 0xFAu },
Now that I'm able to download schematics, I'm trying to get the demo canvas working. I've made the following changes to the SigmaStudio project:
- Changed the target processor to "ADSP-SC573"
- Configured the DXE files for the SHARC cores
- Set the CCES version to v3.0.3
After compile/link/download, the audio passthrough completely stops working. Should this demo be expected to work "out of the box" or do I need to perform SPORT configuration changes or other alterations to the project? Perhaps you have an existing SigmaStudio project that is known to work with the SC573 demo?
Some other general questions:
- Why are the DXE files necessary for SigmaStudio? Is this so the memory map can be obtained, or some other reason?
- Are you aware that building the CCES demo app with the "Debug" profile doesn't work? The SHARC1 core asserts following the "adi_ss_fw_Init" call. Guessing this is an optimization issue.
- Presuming I can get the demo working, what would be your recommended "next steps" for integrating SigmaStudio with an existing CCES project's audio path? Just looking for some general direction.
Many thanks!
