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IS31FL3737 Global Current Setting (#17420)

master
Jamal Bouajjaj 2022-06-19 17:32:37 -04:00 committed by GitHub
parent 4e3db51e92
commit 2bddffeaec
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 1 deletions
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1
docs/feature_rgb_matrix.md
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@ -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 | |

6
drivers/led/issi/is31fl3737.c
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@ -69,6 +69,10 @@
# define ISSI_CSPULLUP PUR_0R
#endif
#ifndef ISSI_GLOBALCURRENT
# define ISSI_GLOBALCURRENT 0xFF
#endif
// Transfer buffer for TWITransmitData()
uint8_t g_twi_transfer_buffer[20];
@ -161,7 +165,7 @@ void IS31FL3737_init(uint8_t addr) {
// Set de-ghost pull-down resistors (CSx)
IS31FL3737_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
// Set global current to maximum.
IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, 0xFF);
IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
// Disable software shutdown.
IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);