Tool/software: Code Composer Studio
Q3 is almost same as Q2, the address of CputoClaVar.i32HighInputMode is 0x1503, the value is 1, but in Disassembly, read the value of 0x1506 the compare with MR0(0x02).
Need suggestion,thanks.
Check the map file, I think the address of EpwmRegsfile is normal.
Then compare my project with example project in C2000ware,
The address of EPwmRegs in two project in Expressions is identical.
Q1, In Disassembly, in my project, 32-bit instruction to read register value, but in C2000ware project, 16-bit instruction to read same register value. I think this difference lead to incorrect register address in my project.
Q2, More MNOP instruction in my project, this two project have same configure on the opt_level and opt_for_speed .
Need your suggestion, Thanks.
First, add #include "DSP2803x_Cla_typedefs.h" to first line of CLA file. In Disassembly, 16-bit Register variable is still read use 32-bit instruction.
Hi Tobby,
I've been trying to reproduce the issue but have not been able to. Note: Because I do not have a F2803x with me (I am working from home due to COVID) I tried this on a F28004x. The same would apply to your device except the PWM registers are at a different memory address. The disassembly instructions match the expressions window regarding the address.
I have detailed my steps below. If this does not help resolve the problem, please work with Brian Wang to send me a small test case that reproduces the issue?
1) Created a structure, similar to yours, as shown. This goes in the shared.h header file:
typedef struct {
uint16_t a;
uint16_t b;
uint16_t c;
uint16_t d[5];
} MY_TEST_STRUCT;
extern MY_TEST_STRUCT test;
2) In the main C28x .c file define the structure as shown:
// // Included Files // #include "F28x_Project.h" #include "shared.h" ..... ..... #pragma DATA_SECTION(buffer, "Cla1DataRam"); MY_TEST_STRUCT test;
3) In the CLA .cla file:
#include <stdint.h>
#include "f28004x_device.h"
#include "shared.h"
__attribute__((interrupt)) void Cla1Task2 ( void )
{
test.a = EPwm1Regs.TBCTL.all;
test.b = EPwm1Regs.TBPRDHR;
test.c = EPwm1Regs.DCCAP;
test.d[0] = EPwm1Regs.DBRED.all;
test.d[1] = EPwm1Regs.HRCNFG.all;
test.d[2] = EPwm1Regs.DCAHTRIPSEL.all;
}
4) Observe disassembly and Expressions window match addresses. Note: 28004x has different memory locations for the ePWM registers than the F2803x you are using.
Register address in Disassembly is incorrect on left side code, correct on right side code
