Changes for page Front I/O

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

From 8.2 to 8.1 From 8.8 to 8.7

From version

8.7

edited by Kevin Wiki
on 2024/07/07 22:21

Change comment: There is no comment for this version

To version

8.2

edited by Kevin Wiki
on 2024/07/05 14:00

Change comment: There is no comment for this version

Raw
Rendered

Summary

Page properties (1 modified, 0 added, 0 removed)
Attachments (0 modified, 0 added, 2 removed)
- Address Ranges-Table 1.csv
- LEDs per bank-Table 1.csv

Details

Page properties

Content

@@ -277,188 +277,7 @@
  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"]]
--
--
--|=Register Banks|=LEDs|=Count
--|=Bank 1|1 2 4 6 8 10 12|7
--|=Bank 2|3 5 7 9 11 13|6
--|=Bank 3|14 16 18 20 22 23 24|7
--|=Bank 4|15 17 19 21|4
--
--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

...	...	@@ -1,1 +1,0 @@
1		-XWiki.kevin

Size

...	...	@@ -1,1 +1,0 @@
1		-209 bytes

Content

@@ -1,6 +1,0 @@
--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

...	...	@@ -1,1 +1,0 @@
1		-XWiki.kevin

Size

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

Content

@@ -1,6 +1,0 @@
--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
--

Changes for page Front I/O

Summary

Details

Navigation

Recently Modified