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/*********************************************************************
*
* OnProjectLoad
*
* Function description
* Project load routine. Required.
*
* Notes
* SAM E70 Xplained: solder a 20-pin 50-mil header on the J403 ETM footprint
* (bottom side). TRACECLK=PD8 (peripheral D), TRACED0-3=PD4-7 (peripheral C),
* shared with the Ethernet PHY - no Ethernet while tracing. TRACE_ETM=1
* builds mux the pins and clock the TPIU from PCK3=MCK; TPIU/ETM are
* ROM-table-discoverable so no J-Link script is required.
* Trace clock pin is PCK3/2 = 75 MHz at the stock 300 MHz core (MCK 150).
*
**********************************************************************
*/
void OnProjectLoad (void) {
Project.SetTraceSource ("Trace Pins");
Project.SetTracePortWidth (4);
Project.SetSWO (0);
Edit.SysVar (VAR_TRACE_CORE_CLOCK, 300000000);
Project.AddSvdFile ("$(InstallDir)/Config/CPU/Cortex-M7F.svd");
Project.SetDevice ("ATSAME70Q21B");
Project.SetHostIF ("USB", "");
Project.SetTargetIF ("SWD");
Project.SetTIFSpeed ("4 MHz");
File.Open ("../../../../../../examples/cmake-build-same70_xplained/device/cdc_msc/cdc_msc.elf");
}
/*********************************************************************
*
* AfterTargetReset
*
* Function description
* Event handler routine.
* - Sets the PC register to program reset value.
* - Sets the SP register to program reset value on Cortex-M.
*
**********************************************************************
*/
void AfterTargetReset (void) {
unsigned int SP;
unsigned int PC;
unsigned int VectorTableAddr;
VectorTableAddr = Elf.GetBaseAddr();
if (VectorTableAddr == 0xFFFFFFFF) {
Util.Log("Project file error: failed to get program base");
} else {
SP = Target.ReadU32(VectorTableAddr);
Target.SetReg("SP", SP);
PC = Target.ReadU32(VectorTableAddr + 4);
Target.SetReg("PC", PC);
}
// TPIU trace clock = PCK3; it must run BEFORE Ozone arms the trace
// components (TPIU programming while PCK3 is stopped is lost and the port
// emits unformatted garbage). A target reset wipes the PMC, so this runs
// in the post-reset/post-download hooks, not AfterTargetConnect.
Target.WriteU32 (0x400E064C, 0x00000014); // PMC_PCK3: CSS=MCK, PRESS=/2
Target.WriteU32 (0x400E0600, 0x00000800); // PMC_SCER: PCK3 on
// wait for PCKRDY3 (bounded) before Ozone arms the trace components
int i;
i = 0;
while (((Target.ReadU32 (0x400E0668) & 0x00000800) == 0) && (i < 100)) {
i = i + 1;
}
}
/*********************************************************************
*
* AfterTargetDownload
*
* Function description
* Event handler routine.
* - Sets the PC register to program reset value.
* - Sets the SP register to program reset value on Cortex-M.
*
**********************************************************************
*/
void AfterTargetDownload (void) {
unsigned int SP;
unsigned int PC;
unsigned int VectorTableAddr;
VectorTableAddr = Elf.GetBaseAddr();
if (VectorTableAddr == 0xFFFFFFFF) {
Util.Log("Project file error: failed to get program base");
} else {
SP = Target.ReadU32(VectorTableAddr);
Target.SetReg("SP", SP);
PC = Target.ReadU32(VectorTableAddr + 4);
Target.SetReg("PC", PC);
}
// TPIU trace clock = PCK3; it must run BEFORE Ozone arms the trace
// components (TPIU programming while PCK3 is stopped is lost and the port
// emits unformatted garbage). A target reset wipes the PMC, so this runs
// in the post-reset/post-download hooks, not AfterTargetConnect.
Target.WriteU32 (0x400E064C, 0x00000014); // PMC_PCK3: CSS=MCK, PRESS=/2
Target.WriteU32 (0x400E0600, 0x00000800); // PMC_SCER: PCK3 on
// wait for PCKRDY3 (bounded) before Ozone arms the trace components
int i;
i = 0;
while (((Target.ReadU32 (0x400E0668) & 0x00000800) == 0) && (i < 100)) {
i = i + 1;
}
}
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