AT91M40800 IDCODE

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èÏÞÕ ÓÄÅÌÁÔØ ÓÌÅÄÕÀÝÅÅ:i2c flash <-i2c-> mcu (8`ÍÉ ÌÁÐÙÊ)<-JTAG->AT91M40800 ÎÅ×ÁÖÎÏ ËÁËÏÊ íãõ Ñ×ÌÑÅÔÓÑ ÂÕÔÌÏÄÅÒÏÍ ÄÌÑ AT91, ÏÎ ÚÁÂÒÁÓÙ×ÁÅÔ × ÅÇÏ RAM ËÕÓÏË ðï ÐÏ JTAG, ÉÚ ÓÅÒÉÁÌØÎÏÊ ÆÌÅÛËÉ, ÄÁÌÅÅ áô91 × ÅÇÏ ÕÓÌÕÇÁÈ ÎÅ ÎÕÖÄÁÅÔÓÑ ÄÏ ÓÌÅÄÕÀÝÅÇÏ ×ËÌÀÞÅÎÉÑ. HÏ ÐÏÐÁÌ × ÔÕÐÉË, Ó ÐÅÒ×ÏÇÏ ÛÁÇÁ. òÕËÏ×ÏÄÓÔ×Ï Ë ÄÅÊÓÔ×ÉÀ - ARM7TDMI Data Sheet ÒÁÚÄÅÌ Debug Interface. äÌÑ ÎÁÞÁÌÁ ÎÁÐÉÓÁÌ ËÕÓÏË ËÏÄÁ ÞÉÔÁÀÝÉÊ ID ÓÁÂÖÁ, ÐÏ ÄÏËÕÍÅÎÔÁÃÉÉ ÄÏÌÖÅÎ ÐÏÌÕÞÁÔØ 0È14080044, ÎÏ ÓÔÁÂÉÌØÎÏ ÐÏÌÕÞÁÀ 0x1F0F0F0F, ÄÁÖÅ ÅÓÌÉ ÐÒÏÈÏÖÕ ×ÓÅ ÓÏÓÔÏÑÎÉÑ ôáò × ÒÕÞÎÕÀ (ÎÁÐÉÓÁÌ ÓÏÆÔÉÎÕ ËÏÔÏÒÁÑ ÏÂÝÁÅÔÓÑ Ó ÂÕÔÅÒÏÍ ÐÏ ËÏÍÐÏÒÔÕ, ×ÉÖÕ × ÎÅÊ, × ×ÉÄÅ ÏÓÃÉÌÌÏÇÒÁÍÍÙ, ×ÓÅ ÐÉÎÙ JTAG É ÒÅÓÅÔAT91, É ÍÏÇÕ ÒÕÌÉÔØ ÉÍÉ ÐÏ Ó×ÏÅÍÕ ÕÓÍÏÔÒÅÎÉÀ) é ÔÁË, ËÏÄ ËÏÍÁÎÄÙ IDCODE = 1110 (binary) ÚÁÐÉÓÙ×ÁÔØ ÅÇÏ ÎÁÄÏ lsb-first ÔÏ ÅÓÔØ Ó ÎÁÞÁÌÁ 0 ÐÏÔÏÍ 1,1,1 (ÎÁ×ÅÒÎÏ ;-) ÷ ÏÂÝÅÍ ÄÅÌÁÀ ÔÁË: ====== ÷×ÏÄ ËÏÍÁÎÄÙ IDCODE ============
1) TMS=1; PulseTCK (TCK=1; TCK=0) 6 ÒÁÚ ÄÌÑ reset TAP
2) TMS=0; PulseTCK //Run-Test/Idle
3) TMS=1; PulseTCK //Select-DR-Scan (ÎÏ ÎÁÍ ÄÁÌØÛÅ)
4) TMS=1; PulseTCK //Select-IR-Scan
5) TMS=0; PulseTCK //Capture-IR
6) TMS=0; PulseTCK //Shift-IR
7) ÷×ÏÄ ÍÌÁÄÛÅÇÏ ÂÉÔÁ ËÏÍÁÎÄÙ IDCODE TDI=0; PulseTCK (ÐÏÓÌÅ ÐÕÌØÓÁ TDO, ÒÁÎÅÅ ÎÁÈÏÄÉ×ÛÉÊÓÑ × "1" ÕÐÁÌ × "0")
8) ðÒÏÄÏÌÖÁÀ ××ÏÄ ËÏÍÁÎÄÙ TDI=1; PulsTCK; TDI=1; PulsTCK; TDI=1; PulsTCK; ×ӣ;
9) TMS=1; PulseTCK //Exit1-IR (ÐÏÓÌÅ ÐÕÌØÓÁ TDO ÐÏÄÎÉÍÁÅÔÓÑ × "1")
10) TMS=1; PulseTCK //Update-IR
11) TMS=0; PulseTCK //ÉÄÕ ÞÅÒÅÚ Run-Test/Idle ========== þÔÅÎÉÅ ID =============
1) TAP × Run-Rets/Idle
2) TMS=1; PulseTCK //Select-DR-Scan
3) TMS=0; PulseTCK //Capture-DR
4) TMS=0; PulseTCK //Shift-DR
5) PulseTCK 32 ÒÁÚÁ, ÓÏÓÔÏÑÎÉÅ TDO ÓÍÏÔÒÀ ÎÁ "ÓËÏÐÅ", ÉÌÉ ÚÁÄ×ÉÇÁÀ × long Á ÐÏÔÏÍ ÓÍÏÒÀ, ÒÅÚÕÌØÔÁÔ ÏÄÉÎ 0È1F0F0F0F, Á ÄÏÌÖÎÏ ÂÙÔØ 0È14080044 çäå ñ ïûéâóñ?
6) ÄÁÌØÛÅ ÎÅ ÉÎÔÅÒÅÓÎÏ ....
ó Õ×ÁÖÅÎÉÅÍ Gerasimov_Gerasim
úù ÎÁ ×ÓÑËÉÊ ÓÌÕÞÁÊ ÐÏÍÅÎÑÌ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ××ÏÄÁ ËÏÍÁÎÄÙ, ÎÅ 0,1,1,1 Á
1,1,1,0 × ÒÅÚÕÌØÔÁÔÅ (× ÓÏÓÔÏÑÎÉÉ Shift-DR) TDO ÎÁ ËÁÖÄÏÍ ËÌÏËÅ ÓÔÁÌ ÐÏ×ÔÏÒÑÔØ TDI, ÏÎÏ É ×ÅÒÎÏ, Ô.Ë. 0111 = HIGHZ ÚÎÁÞÉÔ ×ÉÄÉÍ bypass register;