Other Parts Discussed in Thread: TMS320F28069, CONTROLSUITE
Hi,
I'm working on a TMS320F28069 used to control a gimbal with brushless DC motors.
Currently, I'm working on interfacing, but I'm having some trouble when stepping into inline functions. The equivalent of the follow situation is happening:
Standing in function fooA():
inline void fooA(uint16_t chan)
{
// Here the debugger correctly shows chan = 0
fooB(chan);
}
inline void fooB(uint16_t chan) // This is positioned above fooA
{
// Here the debugger evaluates chan = 1
some_global_array[chan];
}
Another thing I noticed was that prior to this position in the program execution, the stack pointer had the value 0x086C, which I believe is outside the stack area. Here is an excerpt of the ram linker file (i'm just using the default, from controlSUITE.
SECTIONS
{
//...
.stack : > RAMM1, PAGE = 1
//...
}
MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */
BEGIN : origin = 0x000000, length = 0x000002
RAMM0 : origin = 0x000050, length = 0x0003B0
RAML0_L3 : origin = 0x008000, length = 0x002000 /* RAML0-3 combined for size of .text */
/* in Example_F2806xSWPrioritezedInterrupts */
RESET : origin = 0x3FFFC0, length = 0x000002
FPUTABLES : origin = 0x3FD860, length = 0x0006A0 /* FPU Tables in Boot ROM */
IQTABLES : origin = 0x3FDF00, length = 0x000B50 /* IQ Math Tables in Boot ROM */
IQTABLES2 : origin = 0x3FEA50, length = 0x00008C /* IQ Math Tables in Boot ROM */
IQTABLES3 : origin = 0x3FEADC, length = 0x0000AA /* IQ Math Tables in Boot ROM */
BOOTROM : origin = 0x3FF3B0, length = 0x000C10
PAGE 1 :
BOOT_RSVD : origin = 0x000002, length = 0x00004E /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML4 : origin = 0x00A000, length = 0x002000 /* on-chip RAM block L4 */
RAML5 : origin = 0x00C000, length = 0x002000 /* on-chip RAM block L5 */
RAML6 : origin = 0x00E000, length = 0x002000 /* on-chip RAM block L6 */
RAML7 : origin = 0x010000, length = 0x002000 /* on-chip RAM block L7 */
RAML8 : origin = 0x012000, length = 0x002000 /* on-chip RAM block L8 */
USB_RAM : origin = 0x040000, length = 0x000800 /* USB RAM */
}
How does this happen?
