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This commit is contained in:
Andreas Mieke 2018-03-18 23:43:59 +01:00
parent 4093cd295f
commit dc99dcf6e8
41 changed files with 1775 additions and 19 deletions
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89
Mieke/SW/MT/rgb.c Normal file
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#include "rgb.h"
#include "main.h"
typedef enum {
RGB_SHUTDOWN = 0x00,
RGB_MAXCUR,
RGB_RED,
RGB_GREEN,
RGB_BLUE,
RGB_UPLEND,
RGB_DOWNLEND,
RGB_DIMSTEP
} RGB_T;
void rgb_send_command(uint8_t data)
{
I2C_GenerateSTART(I2C1, ENABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C1, RGB_ADDR, I2C_Direction_Transmitter);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(I2C1, data);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_GenerateSTOP(I2C1, ENABLE);
return;
}
void init_rgb(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
GPIO_InitTypeDef gpio;
GPIO_StructInit(&gpio);
// SCL
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
gpio.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOB, &gpio);
// SDA
gpio.GPIO_Mode = GPIO_Mode_AF_OD;
gpio.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOB, &gpio);
I2C_InitTypeDef i2c;
I2C_StructInit(&i2c);
i2c.I2C_ClockSpeed = 400000;
I2C_Init(I2C1, &i2c);
I2C_Cmd(I2C1, ENABLE);
// LED actually allows 40mA, but driver only hanbdles around 30
rgb_send_command(0x3F);
return;
}
void run_rgb(void)
{
rgb_send_command(0x5F);
wait(100);
rgb_send_command(0x7F);
wait(100);
rgb_send_command(0x9F);
wait(100);
rgb_send_command(0x50);
wait(100);
rgb_send_command(0x70);
wait(100);
rgb_send_command(0x90);
wait(100);
rgb_send_command(0x40);
wait(100);
rgb_send_command(0x60);
wait(100);
rgb_send_command(0x80);
wait(100);
return;
}
void deinit_rgb(void)
{
I2C_Cmd(I2C1, DISABLE);
I2C_DeInit(I2C1);
return;
}