What Is Jtag?-joint Test Action Group-fag

[TestBox2]

Lets say no more words, here is phather of Riff ORT ets )


http://openocd.sourceforge.net/

If u take and look by bitFinder hardware analyser tool u can understand more

[TestBox2]

Something for MSM6245 / MSM6246 in delphi from Jtag project

if (mes_show AND 2)=2 then
begin
Form1.Gauge1.Progress:=60;
Form1.Gauge1.Update;
end;



if (c AND $10)<>0 then
begin
// CPU in thumb mode

CPU_mode:=1;

// put_to_log('Reading registers from Thumb state...');

if not(JTAGARM9_debug_IO(0,$60006000,0,od,oinstr)) then exit; // STR R0,[R0]
if not(JTAGARM9_debug_IO(0,$46784678,0,od,oinstr)) then exit; // MOV R0,PC
if not(JTAGARM9_debug_IO(0,$60006000,0,od,oinstr)) then exit; // STR R0,[R0]
if not(JTAGARM9_debug_IO(0,$47784778,0,od,oinstr)) then exit; // BX PC

CPU_reg[0]:=od; // backup R0 value

if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP

CPU_reg[15]:=od-$C; // backup PC value ($C - run clock compensation)


end
else
begin
// --- CPU in ARM mode -----

CPU_mode:=0;

// put_to_log('Reading registers from ARM state...');

if not(JTAGARM9_debug_IO(0,$E5800000,0,od,oinstr)) then exit; // STR R0,[R0]
if not(JTAGARM9_debug_IO(0,$E1A0000F,0,od,oinstr)) then exit; // MOV R0,PC
if not(JTAGARM9_debug_IO(0,$E5800000,0,od,oinstr)) then exit; // STR R0,[R0]
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP

CPU_reg[0]:=od; // backup R0 value

if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP

CPU_reg[15]:=od-$18; // backup PC value ($18 - run clock compensation)

end;


if (mes_show AND 2)=2 then
begin
Form1.Gauge1.Progress:=80;
Form1.Gauge1.Update;
end;


//--- read rest registers --------------


if not(JTAGARM9_debug_IO(0,$E8807FFE,0,od,oinstr)) then exit; // STMIA R0,{R1-LR}
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP

for n:=1 to 14 do
begin
if not(JTAGARM9_debug_IO(0,$E1A00000,0,od,oinstr)) then exit; // NOP
CPU_reg[n]:=od; // backup Rn value
end;

[asliyucegsm]

thank you my friends

[reired]

if not(JTAGARM9_debug_IO(0,$60006000,0,od,oinstr)) then exit; // STR R0,[R0]
if not(JTAGARM9_debug_IO(0,$4

[mrjuba]

Find the data sheet for your processor, inside there will be JTAG pinout.