Changes for page Front I/O

Last modified by Kevin Wiki on 2024/07/07 22:48

From 7.2 to 7.3 From 8.8 to 9.1

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7.3

edited by Kevin Wiki
on 2024/07/05 09:31

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8.8

edited by Kevin Wiki
on 2024/07/07 22:44

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- Address Ranges-Table 1.csv
- LEDs per bank-Table 1.csv

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@@ -2,6 +2,10 @@
  (((
  (% class="col-xs-12 col-sm-8" %)
  (((
++= Code =
++
++Arduino project with utils and script for driving all LEDs, buttons and MLB front I/O headers for driving Xserve front I/O devices: [[https:~~/~~/github.com/KevinMidboe/xserve-io>>https://github.com/KevinMidboe/xserve-io/]].
++
  = Pinout =
  There is a single cable that controls four parts, each half side of I/O LED and center column of blue LEDs.
@@ -194,7 +194,294 @@
  * Power LED P3V3 - 3.30V
  * Power LED - 0.87 V
++= Controlling top I/O LED =
++
++On the top row we have the following input/output devices in order from left to right;
++
++Left side:
++
++* physical lock
++* lock LED
++* warning/service button
++* warning/service LED
++* locate button
++* power LED (red & green)
++* fan LED (red & green)
++* temperature LED (red & green)
++* compute LED (unknown)
++
++Right side:
++
++* power LED (red & green)
++* fan LED (red & green)
++* temperature LED (red & green)
++* compute LED (unknown)
++* lock switch
++
++Each sides bank of LEDs are driven by each their PCA9554 shift register. The registers represent the following LEDs: (Note that Lock LED is only present for the LEFT side)
++
++(% border="1" %)
++|=(% scope="row" %)Register|1|2|3|4|5|6|7
++|=Device|Power LED Green|Power LED Red|Fan LED Green|Fan LED Red|Temperature LED Green|Temperature LED Red|Lock LED
++
++To control each LED we shift either a 0 to turn off or 1 to turn on. Since each device shares a single red/green LED (power LED green & power LED red) setting both to 1 at the same time will always leave it red. That is when power LED green and power LED red are both enabled, red always takes precedence.
++
++Use following script to power LEDs one at a time:
++
++{{code language="c++"}}
++#include <PCA9554.h>  // Load the PCA9554 Library
++
++PCA9554 ioCon1(0x24);  // Create an object at this address
++
++uint8_t mapIO = 0b10000000;
++
++void shiftL() {
++  mapIO = (mapIO << 1) | ((mapIO & 0x80) >> 7);
++}
++
++void write() {
++  Serial.println("writing to PCA9554 device");
++
++  for (int i = 0; i < 8; ++i) {
++    ioCon1.digitalWrite(i, (mapIO & (1 << i)) ? 0 : 1);
++  }
++}
++
++void setup()
++{
++  Serial.begin(9600);
++  Serial.println("Setup");
++
++  ioCon1.portMode(ALLOUTPUT);
++}
++
++void loop()
++{
++  write();
++  shiftL();
++
++  delay(500);
++}
++{{/code}}
++
++
++Controlling middle IO strip
++
++0 = 0000
++1 (green) = 0001
++2 = 0010
++1 + 2 = 0011
++3 = 0100
++
++
++There are 4 words, each containing 7 data bits. They do not
++
++
++= Controlling center LED columns =
++
++There are a total of 4 banks of addressable LED's 12 each of the total 48.
++
++
++|**Address Range (Binary)**|**Address Range (hex)**|**Size**|**Description**
++|0-7|00-07|1 byte|Ethernet indicator and LEDs bank-1
++|8-15|08-0F|1 byte|LEDs bank-2
++|16-23|10-17|1 byte|LEDs bank-3
++|24-31|18-1F|1 byte|LEDs bank-4
++
++[[attach:Address Ranges-Table 1.csv||target="_blank"]]
++
++|=**Address Banks**|=**LEDs Controlled**|=**Count**|=**Address Range (hex)**|=**Description**
++|=**Bank-1**|1 2 4 6 8 10 12|7|00-07|LED 1 ethernet indicator, even bottom half
++|=**Bank-2**|3 5 7 9 11 13|6|08-0F|Odd LED top half
++|=**Bank-3**|14 16 18 20 22 23 24|7|10-17|Even LED bottom half
++|=**Bank-4**|15 17 19 21|4|18-1F|Odd LED top half
++
++[[attach:LEDs per bank-Table 1.csv||target="_blank"]]
++
++
++| | |(% colspan="8" %)**bits (1 byte per register)**
++|**Controls device**|**Register**|**7**|**6**|**5**|**4**|**3**|**2**|**1**|**0**
++|**Ethernet LED**|Register 1|0|0|0|0|0|0|0|1
++|**LED 1**|Register 1|0|0|0|0|0|0|1|0
++|**LED 2**|Register 2|0|0|0|0|0|0|1|0
++|**LED 3**|Register 1|0|0|0|0|0|1|0|0
++|**LED 4**|Register 2|0|0|0|0|0|1|0|0
++|**LED 5**|Register 1|0|0|0|0|1|0|0|0
++|**LED 6**|Register 2|0|0|0|0|1|0|0|0
++|**LED 7**|Register 1|0|0|0|1|0|0|0|0
++|**LED 8**|Register 2|0|0|0|1|0|0|0|0
++|**LED 9**|Register 1|0|0|1|0|0|0|0|0
++|**LED 10**|Register 2|0|0|1|0|0|0|0|0
++|**LED 11**|Register 1|0|1|0|0|0|0|0|0
++|**LED 12**|Register 2|0|1|0|0|0|0|0|0
++|**LED 13**|Register 3|0|0|0|0|0|0|0|1
++|**LED 14**|Register 4|0|0|0|0|0|0|0|1
++|**LED 15**|Register 3|0|0|0|0|0|0|1|0
++|**LED 16**|Register 4|0|0|0|0|0|0|1|0
++|**LED 17**|Register 3|0|0|0|0|0|1|0|0
++|**LED 18**|Register 4|0|0|0|0|0|1|0|0
++|**LED 19**|Register 3|0|0|0|0|1|0|0|0
++|**LED 20**|Register 4|0|0|0|0|1|0|0|0
++|**LED 21**|Register 3|0|0|0|1|0|0|0|0
++|**LED 22**|Register 3|0|0|1|0|0|0|0|0
++|**LED 23**|Register 3|0|1|0|0|0|0|0|0
++
++
++
++Script for writing all permutations to display:
++
++{{code language="c++"}}
++#include "Wire.h" // enable I2C bus
++
++byte saa1064 = 0x3B; // define the I2C bus address for our SAA1064 (pin 1 to GND) ****
++
++void setup()
++{
++  Wire.begin(); // start up I2C bus
++}
++
++void write(int value) {
++  Wire.beginTransmission(saa1064);
++  Wire.write(1);
++
++  Wire.write(value);
++  Wire.write(value);
++  Wire.write(value);
++  Wire.write(value);
++
++  Wire.endTransmission();
++}
++
++void loop() {
++  for (int value = 0; value < 127; value++) {
++    write(value);
++    delay(300);
++  }
++}
++{{/code}}
++
++Since LED positions don't map sequentially with LED number we can't address them in 10-base form, but we can define each LED in binary and use OR operator to display LEDs we want.
++
++{{code language="c++"}}
++#include "Wire.h" // enable I2C bus
++
++#define TCAADDR 0x70
++byte saa1064 = 0x3B; // define the I2C bus address for our SAA1064
++
++byte bank1;
++byte bank2;
++byte bank3;
++byte bank4;
++
++byte activityLED = 0b00000001;
++byte leds[23][4] = {
++  {0b00000010, 0b00000000, 0b00000000, 0b00000000}, //  1
++  {0b00000000, 0b00000010, 0b00000000, 0b00000000}, //  2
++  {0b00000100, 0b00000000, 0b00000000, 0b00000000}, //  3
++  {0b00000000, 0b00000100, 0b00000000, 0b00000000}, //  4
++  {0b00001000, 0b00000000, 0b00000000, 0b00000000}, //  5
++  {0b00000000, 0b00001000, 0b00000000, 0b00000000}, //  6
++  {0b00010000, 0b00000000, 0b00000000, 0b00000000}, //  7
++  {0b00000000, 0b00010000, 0b00000000, 0b00000000}, //  8
++  {0b00100000, 0b00000000, 0b00000000, 0b00000000}, //  9
++  {0b00000000, 0b00100000, 0b00000000, 0b00000000}, // 10
++  {0b01000000, 0b00000000, 0b00000000, 0b00000000}, // 11
++  {0b00000000, 0b01000000, 0b00000000, 0b00000000}, // 12
++  {0b00000000, 0b00000000, 0b00000001, 0b00000000}, // 13
++  {0b00000000, 0b00000000, 0b00000000, 0b00000001}, // 14
++  {0b00000000, 0b00000000, 0b00000010, 0b00000000}, // 15
++  {0b00000000, 0b00000000, 0b00000000, 0b00000010}, // 16
++  {0b00000000, 0b00000000, 0b00000100, 0b00000000}, // 17
++  {0b00000000, 0b00000000, 0b00000000, 0b00000100}, // 18
++  {0b00000000, 0b00000000, 0b00001000, 0b00000000}, // 19
++  {0b00000000, 0b00000000, 0b00000000, 0b00001000}, // 20
++  {0b00000000, 0b00000000, 0b00010000, 0b00000000}, // 21
++  {0b00000000, 0b00000000, 0b00100000, 0b00000000}, // 22
++  {0b00000000, 0b00000000, 0b01000000, 0b00000000}  // 23
++};
++
++void setup()
++{
++  Serial.begin(9600);
++  Wire.begin(); // start up I2C bus
++
++  Serial.println("setting up ports");
++}
++
++void tcaselect(uint8_t i) {
++  if (i > 7) return;
++  Wire.beginTransmission(TCAADDR);
++  Wire.write(1 << i);
++  Wire.endTransmission();
++}
++
++void selectLeft() { tcaselect(2); }
++void selectRight() { tcaselect(1); }
++
++void write() {
++  Wire.beginTransmission(saa1064);
++  Wire.write(1);
++
++  Wire.write(bank1);
++  Wire.write(bank2);
++  Wire.write(bank3);
++  Wire.write(bank4);
++
++  Wire.endTransmission();
++}
++
++void resetBanks() {
++  bank1 = 0;
++  bank2 = 0;
++  bank3 = 0;
++  bank4 = 0;
++}
++
++void displayNumber(int number) {
++  bank1 = leds[number - 1][0];
++  bank2 = leds[number - 1][1];
++  bank3 = leds[number - 1][2];
++  bank4 = leds[number - 1][3];
++}
++
++void displayUpToNumber(int number) {
++  for (int i = 0; i < number; i++) {
++    bank1 = bank1 | leds[i][0];
++    bank2 = bank2 | leds[i][1];
++    bank3 = bank3 | leds[i][2];
++    bank4 = bank4 | leds[i][3];
++  }
++}
++
++void computeEthernetActivity() {
++  bank1 = bank1 | activityLED;
++}
++
++void loop() {
++  resetBanks();
++  delay(10);
++
++  displayUpToNumber(15);
++  computeEthernetActivity();
++
++  selectLeft();
++  write();
++  delay(2);
++
++  selectRight();
++  write();
++  delay(1000);
++}
++{{/code}}
++
++
++= Missing pieces, TODO =
++
++* how to control compute LED in top IO row
++* control warning button LED
++
++
  )))

Address Ranges-Table 1.csv

Author

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	1	+XWiki.kevin

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	1	+209 bytes

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@@ -1,0 +1,6 @@
++Address Range (Binary);Address Range (hex);Size;Description
++0-7;00-07;1 byte;Ethernet indicator and LEDs bank-1
++8-15;08-0F;1 byte;LEDs bank-2
++16-23;10-17;1 byte;LEDs bank-3
++24-31;18-1F;1 byte;LEDs bank-4
++

LEDs per bank-Table 1.csv

Author

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	1	+XWiki.kevin

Size

...	...	@@ -1,0 +1,1 @@
	1	+294 bytes

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@@ -1,0 +1,6 @@
++Address Banks;LEDs Controlled;Count;Address Range (hex);Description
++Bank-1;1 2 4 6 8 10 12;7;00-07;LED 1 ethernet indicator, even bottom half
++Bank-2;3 5 7 9 11 13;6;08-0F;Odd LED top half
++Bank-3;14 16 18 20 22 23 24;7;10-17;Even LED bottom half
++Bank-4;15 17 19 21;4;18-1F;Odd LED top half
++

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