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Merge UPDATE_DR and UPDATE_IR handling in JTAG state machines

This commit is contained in:
Alexey Starikovskiy 2023-09-07 11:29:46 +03:00 committed by Gwenhael Goavec-Merou
parent 6a0de15bff
commit 6c16417ee9
3 changed files with 3 additions and 13 deletions
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10
src/jtag.cpp
View File

@ -555,6 +555,7 @@ void Jtag::set_state(tapState_t newState)
}
break;
case UPDATE_DR:
case UPDATE_IR:
if (newState == RUN_TEST_IDLE) {
tms = 0;
_state = RUN_TEST_IDLE;
@ -616,15 +617,6 @@ void Jtag::set_state(tapState_t newState)
_state = UPDATE_IR;
}
break;
case UPDATE_IR:
if (newState == RUN_TEST_IDLE) {
tms = 0;
_state = RUN_TEST_IDLE;
} else {
tms = 1;
_state = SELECT_DR_SCAN;
}
break;
case UNKNOWN:;
// UNKNOWN should not be valid...
throw std::exception();

2
src/jtag.hpp
View File

@ -85,7 +85,7 @@ class Jtag {
PAUSE_IR = 13,
EXIT2_IR = 14,
UPDATE_IR = 15,
UNKNOWN = 999
UNKNOWN = 16,
};
int shiftIR(unsigned char *tdi, unsigned char *tdo, int irlen,

4
src/xvc_server.cpp
View File

@ -403,6 +403,7 @@ Jtag::tapState_t XVC_server::set_state(const uint8_t *tms_seq, uint32_t len)
_state = (tms) ? Jtag::UPDATE_DR : Jtag::SHIFT_DR;
break;
case Jtag::UPDATE_DR:
case Jtag::UPDATE_IR:
_state = (tms) ? Jtag::SELECT_DR_SCAN : Jtag::RUN_TEST_IDLE;
break;
@ -424,9 +425,6 @@ Jtag::tapState_t XVC_server::set_state(const uint8_t *tms_seq, uint32_t len)
case Jtag::EXIT2_IR:
_state = (tms) ? Jtag::UPDATE_IR : Jtag::SHIFT_IR;
break;
case Jtag::UPDATE_IR:
_state = (tms) ? Jtag::SELECT_DR_SCAN : Jtag::RUN_TEST_IDLE;
break;
default:
/* pass */
break;