UT.6.01 forrásának megtekintése


==C1 Bevezetés ==
Folyamatosan gyűjtöm az anyagokat és fordítom, ahogy lehet

==C2 Alap fogalmak ==
=== Bináris számok és rendszerek ===

=== Hexadecimális számok ===

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<table id="table_d7c7_0" class="MsoNormalTable" border="1">
<tbody>
<tr id="tr_d7c7_0">
<td id="td_d7c7_0">
<p id="p_d7c7_0" class="MsoNormal"><span>Hex Digit</span></p>
</td>
<td id="td_d7c7_1">
<p id="p_d7c7_1" class="MsoNormal"><span>Decimal&nbsp; Value</span></p>
</td>
<td id="td_d7c7_2">
<p id="p_d7c7_2" class="MsoNormal"><span>Binary Value</span></p>
</td>
</tr>
<tr id="tr_d7c7_1">
<td id="td_d7c7_3">
<p id="p_d7c7_3" class="MsoNormal"><span>0</span></p>
</td>
<td id="td_d7c7_4">
<p id="p_d7c7_4" class="MsoNormal"><span>0</span></p>
</td>
<td id="td_d7c7_5">
<p id="p_d7c7_5" class="MsoNormal"><span>0000</span></p>
</td>
</tr>
<tr id="tr_d7c7_2">
<td id="td_d7c7_6">
<p id="p_d7c7_6" class="MsoNormal"><span>1</span></p>
</td>
<td id="td_d7c7_7">
<p id="p_d7c7_7" class="MsoNormal"><span>1</span></p>
</td>
<td id="td_d7c7_8">
<p id="p_d7c7_8" class="MsoNormal"><span>0001</span></p>
</td>
</tr>
<tr id="tr_d7c7_3">
<td id="td_d7c7_9">
<p id="p_d7c7_9" class="MsoNormal"><span>2</span></p>
</td>
<td id="td_d7c7_10">
<p id="p_d7c7_10" class="MsoNormal"><span>2</span></p>
</td>
<td id="td_d7c7_11">
<p id="p_d7c7_11" class="MsoNormal"><span>0010</span></p>
</td>
</tr>
<tr id="tr_d7c7_4">
<td id="td_d7c7_12">
<p id="p_d7c7_12" class="MsoNormal"><span>3</span></p>
</td>
<td id="td_d7c7_13">
<p id="p_d7c7_13" class="MsoNormal"><span>3</span></p>
</td>
<td id="td_d7c7_14">
<p id="p_d7c7_14" class="MsoNormal"><span>0011</span></p>
</td>
</tr>
<tr id="tr_d7c7_5">
<td id="td_d7c7_15">
<p id="p_d7c7_15" class="MsoNormal"><span>4</span></p>
</td>
<td id="td_d7c7_16">
<p id="p_d7c7_16" class="MsoNormal"><span>4</span></p>
</td>
<td id="td_d7c7_17">
<p id="p_d7c7_17" class="MsoNormal"><span>0100</span></p>
</td>
</tr>
<tr id="tr_d7c7_6">
<td id="td_d7c7_18">
<p id="p_d7c7_18" class="MsoNormal"><span>5</span></p>
</td>
<td id="td_d7c7_19">
<p id="p_d7c7_19" class="MsoNormal"><span>5</span></p>
</td>
<td id="td_d7c7_20">
<p id="p_d7c7_20" class="MsoNormal"><span>0101</span></p>
</td>
</tr>
<tr id="tr_d7c7_7">
<td id="td_d7c7_21">
<p id="p_d7c7_21" class="MsoNormal"><span>6</span></p>
</td>
<td id="td_d7c7_22">
<p id="p_d7c7_22" class="MsoNormal"><span>6</span></p>
</td>
<td id="td_d7c7_23">
<p id="p_d7c7_23" class="MsoNormal"><span>0110</span></p>
</td>
</tr>
<tr id="tr_d7c7_8">
<td id="td_d7c7_24">
<p id="p_d7c7_24" class="MsoNormal"><span>7</span></p>
</td>
<td id="td_d7c7_25">
<p id="p_d7c7_25" class="MsoNormal"><span>7</span></p>
</td>
<td id="td_d7c7_26">
<p id="p_d7c7_26" class="MsoNormal"><span>0111</span></p>
</td>
</tr>
<tr id="tr_d7c7_9">
<td id="td_d7c7_27">
<p id="p_d7c7_27" class="MsoNormal"><span>8</span></p>
</td>
<td id="td_d7c7_28">
<p id="p_d7c7_28" class="MsoNormal"><span>8</span></p>
</td>
<td id="td_d7c7_29">
<p id="p_d7c7_29" class="MsoNormal"><span>1000</span></p>
</td>
</tr>
<tr id="tr_d7c7_10">
<td id="td_d7c7_30">
<p id="p_d7c7_30" class="MsoNormal"><span>9</span></p>
</td>
<td id="td_d7c7_31">
<p id="p_d7c7_31" class="MsoNormal"><span>9</span></p>
</td>
<td id="td_d7c7_32">
<p id="p_d7c7_32" class="MsoNormal"><span>1001</span></p>
</td>
</tr>
<tr id="tr_d7c7_11">
<td id="td_d7c7_33">
<p id="p_d7c7_33" class="MsoNormal"><span>A or a</span></p>
</td>
<td id="td_d7c7_34">
<p id="p_d7c7_34" class="MsoNormal"><span>10</span></p>
</td>
<td id="td_d7c7_35">
<p id="p_d7c7_35" class="MsoNormal"><span>1010</span></p>
</td>
</tr>
<tr id="tr_d7c7_12">
<td id="td_d7c7_36">
<p id="p_d7c7_36" class="MsoNormal"><span>B or b</span></p>
</td>
<td id="td_d7c7_37">
<p id="p_d7c7_37" class="MsoNormal"><span>11</span></p>
</td>
<td id="td_d7c7_38">
<p id="p_d7c7_38" class="MsoNormal"><span>1011</span></p>
</td>
</tr>
<tr id="tr_d7c7_13">
<td id="td_d7c7_39">
<p id="p_d7c7_39" class="MsoNormal"><span>C or c</span></p>
</td>
<td id="td_d7c7_40">
<p id="p_d7c7_40" class="MsoNormal"><span>12</span></p>
</td>
<td id="td_d7c7_41">
<p id="p_d7c7_41" class="MsoNormal"><span>1100</span></p>
</td>
</tr>
<tr id="tr_d7c7_14">
<td id="td_d7c7_42">
<p id="p_d7c7_42" class="MsoNormal"><span>D or d</span></p>
</td>
<td id="td_d7c7_43">
<p id="p_d7c7_43" class="MsoNormal"><span>13</span></p>
</td>
<td id="td_d7c7_44">
<p id="p_d7c7_44" class="MsoNormal"><span>1101</span></p>
</td>
</tr>
<tr id="tr_d7c7_15">
<td id="td_d7c7_45">
<p id="p_d7c7_45" class="MsoNormal"><span>E or e</span></p>
</td>
<td id="td_d7c7_46">
<p id="p_d7c7_46" class="MsoNormal"><span>14</span></p>
</td>
<td id="td_d7c7_47">
<p id="p_d7c7_47" class="MsoNormal"><span>1110</span></p>
</td>
</tr>
<tr id="tr_d7c7_16">
<td id="td_d7c7_48">
<p id="p_d7c7_48" class="MsoNormal"><span>F or f</span></p>
</td>
<td id="td_d7c7_49">
<p id="p_d7c7_49" class="MsoNormal"><span>15</span></p>
</td>
<td id="td_d7c7_50">
<p id="p_d7c7_50" class="MsoNormal"><span>1111</span></p>
</td>
</tr>
</tbody>
</table>
</html>
=== Beágyazott rendszerek ===
Processzor típusok: '''x86''' (ált. asztali gép), '''ARM'''.<br />
"Az I/O az a ragasztó, amivel a processzor kapcsolódik a világhoz."<br />
Tervezési szempontok: tesztelhetőség, haszon, energia igény, méret, megfelelő válasz megfelelő időben.<br />
Human-computer interface (HCI) or man-machine interface (MMI).<br />
Tipikus példa: multiméter.<br />


=== Bevezetés a számítógépekhez ===

==== Neumann architecture ====
Számítógép = proceszor + RAM + ROM + IO.<br />
Neumann architecture,  
"A port is a physical connection between the computer and its outside world. Ports allow information to enter and exit the system."<br />
"A bus is a collection of wires used to pass information between modules."<br />
 A busz vezetékek gyűjteménye, amit a modulok közti információ cserére használunk.
==== Harvard architecture ====
ARM®Cortex™-M processor. 
"separate data and instruction buses"
 Külön adat, és utasítás buszok.

"The nested vectored interrupt controller (NVIC) manages interrupts, which are hardware-triggered software functions. "
A beágyazott irányítható megszakítás-vezérlő - '''NVIC'''<br />

----------------------
<br />

'''''A microprocessor''''' is a small processor.

'''''A microcomputer''''' is a small computer that includes a processor, memory and I/O devices. 

'''''A microcontroller''''' is a single chip computer.
----------------------
<br />

=== IO portok ===
 
=== CPU regiszterek ===

ISA 
Instruction set architecture
==== MEMORY MAP LAYOUT ====
'''RAM''' (random access memory)<br />

'''ROM''' (read only memory)<br />
ROM-ok:<br />
 '''Static RAM''' (SRAM)<br />
 '''Programmable ROM''' (PROM) 10000 times slower RAM<br />
 '''Electrically erasable programmable ROM''' (EEPROM)<br />

"In regular EEPROM, you can erase and program individual bytes. "

 '''FLASH ROM'''
"Flash ROM is a popular type of EEPROM. Each flash bit requires only two MOSFET transistors. The input (gate) of one transistor is electrically isolated, so if we trap charge on this input, it will remain there for years."<br />

"Each flash bit requires only two MOSFET transistors The input (gate) of one transistor is electrically isolated, so if we trap charge on this input, it will remain there for years. The other transistor is used to read the bit by sensing whether or not the other transistor has trapped charge."<br />

"Flash ROM must be erased in large blocks. On many of Stellaris family of microcontrollers, we can erase the entire ROM or just a 1024-byte block."


"Because flash is smaller than regular EEPROM, most microcontrollers have a large flash into which we store the software. For all the systems in this class, we will store instructions and constants in flash ROM and place variables and temporary data in static RAM."

''"Flash ROM is higher density because it requires few transistors compared to RAM."''

== Software ==

CortexM_InstructionSet.pdf Instruction Set Reference Manual
https://courses.edx.org/c4x/UTAustinX/UT.6.01x/asset/CortexM_InstructionSet.pdf

CortexM4_TRM_r0p1.pdf Cortex-M4 Technical Reference Manual
https://courses.edx.org/c4x/UTAustinX/UT.6.01x/asset/CortexM_InstructionSet.pdf

LaunchPadUsersManual.pdf LaunchPad Manual

tm4c123gh6pm.pdf Data Sheet for the TM4C123 microcontroller

== C3.2 ==

elemekre
E = V * I * time

E-> állandó ; V -> állandó, az idő vagy az I csökkentésével csökkenthetjük a felhasznált energiát


 P = V * I Power = Voltage  * Current

 P = V2 / R Power = Voltage2 / Resistance           
 
 P = I2 * R Power = Current2 * Resistance


== 4.2 Boolean algebra ==