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-rw-r--r--docs/feature_rgb_matrix.md19
1 files changed, 18 insertions, 1 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 295e610fc4..9eaf63d710 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -172,6 +172,7 @@ Configure the hardware via your `config.h`:
| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
| `ISSI_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3737B only | 0 |
+| `ISSI_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
| `ISSI_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
| `ISSI_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
@@ -409,6 +410,7 @@ You can use up to 2 AW20216 IC's. Do not specify `DRIVER_<N>_xxx` defines for IC
| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |
| `AW_SCALING_MAX` | (Optional) LED current scaling value (0-255, higher values mean LED is brighter at full PWM) | 150 |
| `AW_GLOBAL_CURRENT_MAX` | (Optional) Driver global current limit (0-255, higher values means the driver may consume more power) | 150 |
+| `AW_SPI_MODE` | (Optional) Mode for SPI communication (0-3, defines polarity and phase of the clock) | 3 |
| `AW_SPI_DIVISOR` | (Optional) Clock divisor for SPI communication (powers of 2, smaller numbers means faster communication, should not be less than 4) | 4 |
Here is an example using 2 drivers.
@@ -665,7 +667,22 @@ In order to change the delay of temperature decrease define `RGB_MATRIX_TYPING_H
#define RGB_MATRIX_TYPING_HEATMAP_DECREASE_DELAY_MS 50
```
-Heatmap effect may not light up the correct adjacent LEDs for certain key matrix layout such as split keyboards. The following define will limit the effect to pressed keys only:
+As heatmap uses the physical position of the leds set in the g_led_config, you may need to tweak the following options to get the best effect for your keyboard. Note the size of this grid is `224x64`.
+
+Limit the distance the effect spreads to surrounding keys.
+
+```c
+#define RGB_MATRIX_TYPING_HEATMAP_SPREAD 40
+```
+
+Limit how hot surrounding keys get from each press.
+
+```c
+#define RGB_MATRIX_TYPING_HEATMAP_AREA_LIMIT 16
+```
+
+Remove the spread effect entirely.
+
```c
#define RGB_MATRIX_TYPING_HEATMAP_SLIM
```