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TRANG

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TRANG last won the day on December 14 2018

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  1. I have a simple code as bellow: class Tmodel{ private: sc_event notify_method_2; sc_event notify_method_4; public: sc_event notify_method_3; sc_in<bool> input_port; ... SC_METHOD(method_1); dont_initialize(); sensitive << input_port; SC_METHOD(method_2); dont_initialize(); sensitive << notify_method_2; SC_METHOD(method_3); dont_initialize(); sensitive << notify_method_3; SC_METHOD(method_4); dont_initialize(); sensitive << notify_method_4; ... void method_1(void){ ... notify_method_2.notify(SC_ZERO_TIME); } void method_2(void){ ... printf("method_2\n"); } void method_3(void){ notify_method_4.notify(SC_ZERO_TIME); } void method_4(void){ printf("method_4\n"); } }; int sc_main(int , char *){ ... objectDUT->input_port.write(true); objectDUT->notify_method_3.notify(SC_ZERO_TIME); sc_start(200,SC_PS); ... } when debug, steps as bellow: 1. method_1 , call notify_method_2 2. method_3, call notify_method_4 3. method_4 4. method_2 I dont understand why at step 3 is method_4 ( I think it is method_2 ). if in sc_main, I insert sc_start(0,SC_PS); int sc_main(int , char *){ ... objectDUT->input_port.write(true); sc_start(0,SC_PS); objectDUT->notify_method_3.notify(SC_ZERO_TIME); sc_start(200,SC_PS); ... } steps is correct: 1. method_1 , call notify_method_2 2. method_3, call notify_method_4 3. method_2 4. method_4
  2. hi @Philipp A Hartmann I get the following message: ==25661== 16 bytes in 1 blocks are possibly lost in loss record 1,400 of 14,166 ==25661== at 0x402B9B4: operator new(unsigned int) (vg_replace_malloc.c:333) ==25661== by 0x40D8AB3: sc_core::sc_port_base::make_sensitive(sc_core::sc_method_process*,sc_core::sc_event_finder*) const (in /usr/lib/i386-linux-gnu/libsystemc-2.3.1.so) ==25661== by 0x40D8C41: sc_core::sc_sensitive::operator<<(sc_core::sc_port_base const&) (in /usr/lib/i386-linux-gnu/libsystemc-2.3.1.so) ==25661== Address 0x5C2BB94 is 32 bytes inside a block of size 57 free'd ==25661== at 0x302B9B4: operator delete(void *) (vg_replace_malloc.c:575) ==25661== by 0x30D8AB3: _M_dispose (basic_string.h:249) ==25661== by 0x30D8AB3: _basic_string (basic_string.h:547) ...(my model) ==25661== by 0x30D8AB3: sc_core::sc_simcontext::simulate....(in /usr/lib/i386-linux-gnu/libsystemc-2.3.1.so) ==25661== by 0x30D8AB3: sc_core::sc_start....(in /usr/lib/i386-linux-gnu/libsystemc-2.3.1.so) Is it same with your previous answer? or other reason.
  3. In my case: I bind directly initiator and target iSocket(tSocket); when target receive transaction, it will copy data to payload unsigned char data[1024]; for (unsigned int i = 0; i < NUM_MAX; i++) { data[i] = i ; } memcpy(trans.get_data_ptr(), &data, length); with length = 128, Initiator read 128 byte from "trans", and I get 0, 1, 2, 3, 4,...127 I think if BUSWIDTH = 32 then I only get 0 ,1 ,2, 3, 0, 0, 0, 0.... It is mean, Initiator can get 128 bytes, in spite of BUSWIDTH= 32, So, I'm not clarify about BUSWIDTH
  4. Hi all, I dont know what is mean using Bus width when declare a socket. eg: model A has an initiator socket : tlm::tlm_initiator_socket<32,tlm::tlm_base_protocol_types,0> iSocket; //BUSWIDTH = 32 model B has a target socket : tlm::tlm_target_socket<32,tlm::tlm_base_protocol_types,0> tSocket; //BUSWIDTH = 32 iSocket will bind with tSocket. when I issue a transaction from model A to model B with trans.set_data_length(128); // 128 > BUSWIDTH I received 128 byte data, What is mean BUSWIDTH when I declare a socket?
  5. Hi all, I have 2 models, model A and model B Model A has an output port out_A (bool) Model B has an input port in_B (bool) when integrate, I will instance 3 objects of Model A, 1 object of Model B //file @connection.cpp ... void initializeENV(){ ... objA_1 = new ModelA("objA_1"); objA_2 = new ModelA("objA_2"); objA_3 = new ModelA("objA_3"); objB = new ModelB("objB"); ... } the value of in_B = objA_1->out_A or objA_2->out_A or objA_3->out_A I think that, if I bind as below . It is wrong. Because of when objA_1->out_A is change then affect to obj_2->out_A and objA_3->out_A. Is my understand correct? //file @connection.cpp ... sc_signal<bool> sig_1; sc_signal<bool> sig_2; sc_signal<bool> sig_3; void initializeENV(){ ... objA_1 = new ModelA("objA_1"); objA_2 = new ModelA("objA_2"); objA_3 = new ModelA("objA_3"); objB = new ModelB("objB"); objA_1->out_A(sig_1); objA_2->out_A(sig_2); objA_3->out_A(sig_3); objB->in_B(sig_1); objB->in_B(sig_2); objB->in_B(sig_3); ... } How to resolve it? How to bind 3 out_A ports to in_B port? .I can't use SC_METHOD in this case. Thank all.
  6. Master and Slave use same clock, so I think Slave need only care data_in. class slave : public sc_module { public: sc_in<bool> clk; sc_in<uint32_t> data_in; slave(sc_module_name name):clk("clk"),data_in("data_in"){ SC_HAS_PROCESS(slave); SC_METHOD(run); dont_initialize(); sensitive << data_in; } void run(){ cout<<hex<<data_in.read()<<endl; } ~slave(){ } }; or class slave : public sc_module { public: sc_in<bool> clk; sc_in<uint32_t> data_in; slave(sc_module_name name):clk("clk"),data_in("data_in"){ SC_HAS_PROCESS(slave); SC_THREAD(run); dont_initialize(); sensitive << data_in; } void run(){ cout<<hex<<data_in.read()<<endl; } ~slave(){ } };
  7. Thank for your support,
  8. I'm sorry make you confused. Summary: if my test case is: sc_start(2*period,time_unit); while (sc_pending_activity_at_current_time()) { sc_start(SC_ZERO_TIME); } or sc_start(3*period,time_unit); then compare match occur.( is correct) If my test case is: sc_start(2*period,time_unit); then compare match don't occur . I want to my source code detect when time simulate near the over to pending to execute event m_update before over.
  9. i try : void GTimer::end_of_simulation() { while (sc_pending_activity_at_current_time()) { sc_start(SC_ZERO_TIME); } } But It is not true? My problem is the time simulates is over before trigger event. I want to force trigger event before end simulate.
  10. Thanks @Philipp A Hartmann it is OK if I use : sc_start(2*period,time_unit); while( sc_pending_activity_at_current_time() ) sc_start( SC_ZERO_TIME ); But I want to pending in my code. Is it possible?
  11. Thank @Eyck I understand that. Do you have any idea for this problem? How to resolve? Thanks very much.
  12. Hi all, I'm using systemC to build timer model. ( Timer support compares match, overflow, underflow) //constructor SC_METHOD(evaluate_method); dont_initialize(); sensitive << m_evaluate; SC_METHOD(update_method); dont_initialize(); sensitive << m_update; void GTimer::evaluate_method() { //check if compare match if(CNT_value == compare_match_value){ compare_match_handling(); } ... m_update.notify((double)period * compare_match_value, time_unit); } void GTimer::update_method() { CNT_value = get_counter_value(); m_evaluate.notify(); } GT_API unsigned int GTimer::get_counter_value() { unsigned int value; sc_time current_time = sc_time_stamp(); value = (current_time.to_double() - start_time.to_double()) / period; return value; } Ex: I set compare_match_value = 2; period = 1000.0 time_unit = SC_PS when I start timer and simulate on 2* period sc_start(2*period ,time_unit) compare match don't occur. because the time simulate is over but m_update event not trigger. If I start timer and simulate on 3* period compare match occur. Do you have any idea? ( I want to compare match occur when I start timer and simulate on 2*period) Thank all.
  13. Hi @CapUnderPantsRLZ in 1666-2011.pdf So, I think @David Black is exactly. https://stackoverflow.com/questions/45308468/systemc-multiple-module-implementations-in-single-cpp-file
  14. Thank you so much, @David Black
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