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Diffstat (limited to 'docs/feature_rgb_matrix.md')
| -rw-r--r-- | docs/feature_rgb_matrix.md | 96 |
1 files changed, 87 insertions, 9 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md index ffbb8c0b60..a29d5c624b 100644 --- a/docs/feature_rgb_matrix.md +++ b/docs/feature_rgb_matrix.md @@ -15,7 +15,20 @@ RGB_MATRIX_ENABLE = yes RGB_MATRIX_DRIVER = IS31FL3731 ``` -Configure the hardware via your `config.h`: +You can use between 1 and 4 IS31FL3731 IC's. Do not specify `DRIVER_ADDR_<N>` defines for IC's that are not present on your keyboard. You can define the following items in `config.h`: + +| Variable | Description | Default | +|----------|-------------|---------| +| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 | +| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 | +| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | | +| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | | +| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | | +| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | | +| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | | +| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | | + +Here is an example using 2 drivers. ```c // This is a 7-bit address, that gets left-shifted and bit 0 @@ -36,8 +49,6 @@ Configure the hardware via your `config.h`: !> Note the parentheses, this is so when `DRIVER_LED_TOTAL` is used in code and expanded, the values are added together before any additional math is applied to them. As an example, `rand() % (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)` will give very different results than `rand() % DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL`. -Currently only 2 drivers are supported, but it would be trivial to support all 4 combinations. - Define these arrays listing all the LEDs in your `<keyboard>.c`: ```c @@ -53,12 +64,10 @@ const is31_led g_is31_leds[DRIVER_LED_TOTAL] = { } ``` -Where `Cx_y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3731.pdf) and the header file `drivers/issi/is31fl3731.h`. The `driver` is the index of the driver you defined in your `config.h` (`0` or `1` right now). +Where `Cx_y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3731.pdf) and the header file `drivers/issi/is31fl3731.h`. The `driver` is the index of the driver you defined in your `config.h` (`0`, `1`, `2`, or `3`). --- -### IS31FL3733/IS31FL3737 :id=is31fl3733is31fl3737 - -!> For the IS31FL3737, replace all instances of `IS31FL3733` below with `IS31FL3737`. +### IS31FL3733 :id=is31fl3733 There is basic support for addressable RGB matrix lighting with the I2C IS31FL3733 RGB controller. To enable it, add this to your `rules.mk`: @@ -67,7 +76,24 @@ RGB_MATRIX_ENABLE = yes RGB_MATRIX_DRIVER = IS31FL3733 ``` -Configure the hardware via your `config.h`: +You can use between 1 and 4 IS31FL3733 IC's. Do not specify `DRIVER_ADDR_<N>` defines for IC's that are not present on your keyboard. You can define the following items in `config.h`: + +| Variable | Description | Default | +|----------|-------------|---------| +| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 | +| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 | +| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | | +| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | | +| `DRIVER_ADDR_1` | (Required) Address for the first RGB driver | | +| `DRIVER_ADDR_2` | (Optional) Address for the second RGB driver | | +| `DRIVER_ADDR_3` | (Optional) Address for the third RGB driver | | +| `DRIVER_ADDR_4` | (Optional) Address for the fourth RGB driver | | +| `DRIVER_SYNC_1` | (Optional) Sync configuration for the first RGB driver | 0 | +| `DRIVER_SYNC_2` | (Optional) Sync configuration for the second RGB driver | 0 | +| `DRIVER_SYNC_3` | (Optional) Sync configuration for the third RGB driver | 0 | +| `DRIVER_SYNC_4` | (Optional) Sync configuration for the fourth RGB driver | 0 | + +Here is an example using 2 drivers. ```c // This is a 7-bit address, that gets left-shifted and bit 0 @@ -81,6 +107,58 @@ Configure the hardware via your `config.h`: // ADDR2 represents A3:A2 of the 7-bit address. // The result is: 0b101(ADDR2)(ADDR1) #define DRIVER_ADDR_1 0b1010000 +#define DRIVER_ADDR_2 0b1010011 + +#define DRIVER_COUNT 2 +#define DRIVER_1_LED_TOTAL 58 +#define DRIVER_2_LED_TOTAL 10 +#define DRIVER_LED_TOTAL (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL) +``` + +!> Note the parentheses, this is so when `DRIVER_LED_TOTAL` is used in code and expanded, the values are added together before any additional math is applied to them. As an example, `rand() % (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)` will give very different results than `rand() % DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL`. + +Currently only 4 drivers are supported, but it would be trivial to support all 8 combinations. + +Define these arrays listing all the LEDs in your `<keyboard>.c`: + +```c +const is31_led g_is31_leds[DRIVER_LED_TOTAL] = { +/* Refer to IS31 manual for these locations + * driver + * | R location + * | | G location + * | | | B location + * | | | | */ + {0, B_1, A_1, C_1}, + .... +} +``` + +Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3733.pdf) and the header file `drivers/issi/is31fl3733.h`. The `driver` is the index of the driver you defined in your `config.h` (`0`, `1`, `2`, or `3` for now). + +--- +### IS31FL3737 :id=is31fl3737 + +There is basic support for addressable RGB matrix lighting with the I2C IS31FL3737 RGB controller. To enable it, add this to your `rules.mk`: + +```makefile +RGB_MATRIX_ENABLE = yes +RGB_MATRIX_DRIVER = IS31FL3737 +``` + +Configure the hardware via your `config.h`: + +```c +// This is a 7-bit address, that gets left-shifted and bit 0 +// set to 0 for write, 1 for read (as per I2C protocol) +// The address will vary depending on your wiring: +// 0000 <-> GND +// 0101 <-> SCL +// 1010 <-> SDA +// 1111 <-> VCC +// ADDR represents A3:A0 of the 7-bit address. +// The result is: 0b101(ADDR) +#define DRIVER_ADDR_1 0b1010000 #define DRIVER_ADDR_2 0b1010000 // this is here for compliancy reasons. #define DRIVER_COUNT 2 @@ -105,7 +183,7 @@ const is31_led g_is31_leds[DRIVER_LED_TOTAL] = { } ``` -Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3733.pdf) and the header file `drivers/issi/is31fl3733.h`. The `driver` is the index of the driver you defined in your `config.h` (Only `0` right now). +Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](https://www.issi.com/WW/pdf/31FL3737.pdf) and the header file `drivers/issi/is31fl3737.h`. The `driver` is the index of the driver you defined in your `config.h` (Only `0` right now). --- |