Hello,
I have a configuration issue with my project. I am using DSP/BIOS 5.41.10.36 on an EVMC6748 board. My real project only hooks on the USB0 interrupt and uses a idle task for processing various data. The problem I have is that the main function is never reached --- it seems BIOS_init does not terminate in this instance. I do not believe this is a programming issue because I have created a dummy project which, together with the TCF configuration file, exhibits the same behaviour. I therefore think it is a problem with the TCF file but I have not been able to find out what it causing the issue.
I have attached a minimal example which, on my computer, never reaches main. If anyone has any suggestions as to how to resolve this issue I would be very grateful. I apologise for the simplicity of the problem; I never had any issues with the project before.
Note that it is my intention to use a heap on the external RAM and to use 128K of the internal RAM as L2 cache.
The C++ code:
#include <iostream>
int main()
{
std::cout << "Hello WORLD!" << std::endl;
return 1;
}
extern "C" void taskIdleFunction()
{
std::cout << "taskIdleFunction!" << std::endl;
}
extern "C" void serviceUSB0Interrupt()
{
std::cout << "taskIdleFunction!" << std::endl;
}
The TCF file:
utils.loadPlatform("ti.platforms.evm6748");
/* Enable real-time LOG. */
bios.enableRealTimeAnalysis(prog);
/* Enable real-time exchange of raw logs with CCS. */
bios.enableRtdx(prog);
// Enable tasks.
bios.enableTskManager(prog);
// Enable heaps.
bios.MEM.NOMEMORYHEAPS = 0;
// Create a heap in external RAM.
bios.MEM.instance("DDR").base = 0xc0000000;
bios.MEM.instance("DDR").len = 0x08000000;
bios.MEM.instance("DDR").createHeap = 1;
bios.MEM.instance("DDR").heapSize = 0x04000000;
bios.MEM.instance("DDR").space = "code/data";
// Use first 128K of SDRAM as "IRAM".
bios.MEM.instance("IRAM").base = 0x11800000;
bios.MEM.instance("IRAM").len = 0x00020000;
bios.MEM.instance("IRAM").createHeap = 0;
bios.MEM.instance("IRAM").space = "code/data";
// Use last 128K of SDRAM for L2-cache.
bios.MEM.instance("CACHE_L2").base = 0x11820000;
bios.MEM.instance("CACHE_L2").len = 0x00020000;
// Use run-time support library with exceptions.
bios.GBL.SPECIFYRTSLIB = 1;
bios.GBL.RTSLIB = "rts6740_eh.lib";
// Disable tracing.
bios.GBL.ENABLEALLTRC = 0;
// Enable L2-cache of size 128K.
bios.GBL.C64PLUSL2CFG = "128k";
// Enable caching of external RAM (0xc0000000 - 0xc8000000)
bios.GBL.C64PLUSMAR192to223 = 0x000000ff;
// Configure kernel thread via IDLE task.
bios.IDL.create("IPT_Firmware");
bios.IDL.instance("IPT_Firmware").order = 1;
bios.IDL.instance("IPT_Firmware").fxn = prog.extern("taskIdleFunction");
bios.IDL.instance("IPT_Firmware").comment = "Runs kernel thread.";
// Give our kernel thread a 1MB stack size in external RAM.
bios.TSK.instance("TSK_idle").stackSize = 10000;
bios.TSK.instance("TSK_idle").stackMemSeg = prog.get("DDR");
// Configure hardware interrupts.
bios.HWI.instance("HWI_INT5").interruptSelectNumber = 19;
bios.HWI.instance("HWI_INT5").fxn = prog.extern("serviceUSB0Interrupt");
bios.HWI.instance("HWI_INT5").useDispatcher = 1;
// Configure logs.
bios.LOG.instance("LOG_system").bufLen = 256;
bios.LOG.instance("LOG_system").bufSeg = prog.get("DDR");
bios.LOG.create("trace");
bios.LOG.instance("trace").bufLen = 256;
bios.LOG.instance("trace").bufSeg = prog.get("DDR");
// Allocate everything in external RAM instead of internal RAM.
bios.MEM.BIOSOBJSEG = prog.get("DDR");
bios.MEM.MALLOCSEG = prog.get("DDR");
bios.MEM.ARGSSEG = prog.get("DDR");
bios.MEM.STACKSEG = prog.get("DDR");
bios.MEM.GBLINITSEG = prog.get("DDR");
bios.MEM.TRCDATASEG = prog.get("DDR");
bios.MEM.SYSDATASEG = prog.get("DDR");
bios.MEM.OBJSEG = prog.get("DDR");
bios.MEM.BIOSSEG = prog.get("DDR");
bios.MEM.SYSINITSEG = prog.get("DDR");
bios.MEM.HWISEG = prog.get("DDR");
bios.MEM.HWIVECSEG = prog.get("DDR");
bios.MEM.RTDXTEXTSEG = prog.get("DDR");
bios.MEM.USERCOMMANDFILE = 0;
bios.MEM.TEXTSEG = prog.get("DDR");
bios.MEM.SWITCHSEG = prog.get("DDR");
bios.MEM.BSSSEG = prog.get("DDR");
bios.MEM.FARSEG = prog.get("DDR");
bios.MEM.CINITSEG = prog.get("DDR");
bios.MEM.PINITSEG = prog.get("DDR");
bios.MEM.CONSTSEG = prog.get("DDR");
bios.MEM.DATASEG = prog.get("DDR");
bios.MEM.CIOSEG = prog.get("DDR");
// Use external RAM instead of internal RAM everywhere.
bios.BUF.OBJMEMSEG = prog.get("DDR");
bios.SYS.TRACESEG = prog.get("DDR");
bios.SEM.OBJMEMSEG = prog.get("DDR");
bios.MBX.OBJMEMSEG = prog.get("DDR");
bios.QUE.OBJMEMSEG = prog.get("DDR");
bios.LCK.OBJMEMSEG = prog.get("DDR");
bios.DIO.OBJMEMSEG = prog.get("DDR");
bios.DHL.OBJMEMSEG = prog.get("DDR");
bios.RTDX.RTDXDATASEG = prog.get("DDR");
bios.HST.OBJMEMSEG = prog.get("DDR");
bios.HST.instance("RTA_fromHost").bufSeg = prog.get("DDR");
bios.HST.instance("RTA_toHost").bufSeg = prog.get("DDR");
bios.PIP.OBJMEMSEG = prog.get("DDR");
bios.SIO.OBJMEMSEG = prog.get("DDR");
bios.TSK.OBJMEMSEG = prog.get("DDR");
bios.PRD.OBJMEMSEG = prog.get("DDR");
// !GRAPHICAL_CONFIG_TOOL_SCRIPT_INSERT_POINT!
prog.gen();
Any help would be much appreciated...
Kind regards,
Mark
