diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/feature_rgb_matrix.md | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md index be763ee025..f3e25f2f13 100644 --- a/docs/feature_rgb_matrix.md +++ b/docs/feature_rgb_matrix.md @@ -145,9 +145,22 @@ There is basic support for addressable RGB matrix lighting with the I2C IS31FL37 RGB_MATRIX_ENABLE = yes RGB_MATRIX_DRIVER = IS31FL3737 ``` +You can use between 1 and 2 IS31FL3737 IC's. Do not specify `DRIVER_ADDR_2` define for second IC if not present on your keyboard. Configure the hardware via your `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 | | + + +Here is an example using 2 drivers. + ```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) @@ -159,14 +172,16 @@ Configure the hardware via your `config.h`: // 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_ADDR_2 0b1010001 #define DRIVER_COUNT 2 -#define DRIVER_1_LED_TOTAL 64 -#define DRIVER_LED_TOTAL DRIVER_1_LED_TOTAL +#define DRIVER_1_LED_TOTAL 30 +#define DRIVER_2_LED_TOTAL 36 +#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 a single drivers is supported, but it would be trivial to support all 4 combinations. For now define `DRIVER_ADDR_2` as `DRIVER_ADDR_1` +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`: @@ -183,7 +198,7 @@ const is31_led PROGMEM 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/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). +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`, `1` for now). --- |