static void userWake()
{
userState = USER_ACTIVE;
buttons_clear();
display_startCRTAnim(DISPLAY_CRTANIM_OPEN);
oled_power(OLED_PWR_ON);
}
static void userSleep()
{
userState = USER_INACTIVE;
oled_power(OLED_PWR_OFF);
}
// Initializes and turns on screen
void oled_init(void) {
// Set initial pin states
pin_clear(OLED_VEN);
pin_set(ENABLE_2V8);
pin_set(OLED_RESET);
pin_set(OLED_A0);
// SPI config
{
// Enable peripheral clock
RCC_AHB1PeriphClockCmd(OLED_SPI_SCK->clock | OLED_SPI_MOSI->clock, ENABLE);
// Enable SPI clock
RCC_APB2PeriphClockCmd(OLED_SPI_CLK, ENABLE);
//pinInit(OLED_SPI_SCK);
//pinInit(OLED_SPI_MOSI);
SPI_I2S_DeInit(OLED_SPI);
SPI_InitTypeDef ConfigSPI;
ConfigSPI.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
ConfigSPI.SPI_Mode = SPI_Mode_Master;
ConfigSPI.SPI_DataSize = SPI_DataSize_8b;
ConfigSPI.SPI_CPOL = SPI_CPOL_High;
ConfigSPI.SPI_CPHA = SPI_CPHA_2Edge;
ConfigSPI.SPI_NSS = SPI_NSS_Soft;
ConfigSPI.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
ConfigSPI.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_Init(OLED_SPI, &ConfigSPI);
SPI_Cmd(OLED_SPI, ENABLE);
}
// DMA config
{
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
DMA_InitTypeDef ConfigDMA;
ConfigDMA.DMA_Channel = DMA_Channel_3;
ConfigDMA.DMA_PeripheralBaseAddr = (uint32_t)&SPI1->DR;
ConfigDMA.DMA_Memory0BaseAddr = 0;
ConfigDMA.DMA_DIR = DMA_DIR_MemoryToPeripheral;
ConfigDMA.DMA_BufferSize = 0;
ConfigDMA.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
ConfigDMA.DMA_MemoryInc = DMA_MemoryInc_Enable;
ConfigDMA.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
ConfigDMA.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
ConfigDMA.DMA_Mode = DMA_Mode_Normal;
ConfigDMA.DMA_Priority = DMA_Priority_High;
ConfigDMA.DMA_FIFOMode = DMA_FIFOMode_Enable;
ConfigDMA.DMA_FIFOThreshold = DMA_FIFOThreshold_1QuarterFull;
ConfigDMA.DMA_MemoryBurst = DMA_MemoryBurst_Single;
ConfigDMA.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream3, &ConfigDMA);
stream_cr = DMA2_Stream3->CR;
repeat_cr = DMA2_Stream3->CR ^ (DMA_MemoryInc_Enable | DMA_MemoryDataSize_HalfWord);
}
// Cycle reset
pin_clear(OLED_RESET);
delay(10);
pin_set(OLED_RESET);
delay(10);
// Do software reset
oled_cmd(0x01, 0, 0);
delay(10);
// Initialization command list
uint8_t init_cmds[] = {
0x03, 0x01, 0x00, // Stand-by OFF
0x07, 0x08, 0x00, 0x00, 0x07, 0x0F, 0x01, 0x0C, 0x09, 0x0C, // Set display size
0x05, 0x01, 0x0A, // Set RAM write "direction"
0x06, 0x01, 0x01, // Set RAM scanning "direction"
0x04, 0x01, 0x02, // Set internal oscillator to 90Hz
0x1F, 0x01, 0x30, // Set row scan operations = ALL
0x30, 0x01, 0x12, // Set regulator to ???
0x1C, 0x01, 0x0F, // Set pre-charge width
0x1E, 0x01, 0x00, // Set peak pulse delay
0x0F, 0x03, 0x0A, 0x0A, 0x0A, // Set peak currents (RGB)
0x1D, 0x03, 0x05, 0x05, 0x05, // Set peak pulse widths (RGB)
0x08, 0x01, 0x01, // Set interface type to 8-bit
0x00 // END
};
// Send initializiation commands
uint8_t *p_cmds = init_cmds;
while(*p_cmds != 0x00) {
uint8_t cmd = *p_cmds++;
uint8_t args = *p_cmds++;
oled_cmd(cmd, args, p_cmds);
p_cmds += args;
}
// Set initial power
oled_power(40);
// Clear screen
uint16_t blank_line[128];
memset(blank_line, 0, sizeof(blank_line));
for(uint8_t y = 0; y < 128; y++) {
oled_blit(0, y, 128, 1, blank_line);
}
// Turn on display
uint8_t init_on[] = {0x01};
oled_cmd(0x02, 1, init_on);
// Power up LEDs
oled_vramp();
}
// Shut down display completely (lowest power mode)
void oled_deinit(void) {
oled_power(0);
pin_clear(OLED_VEN);
pin_clear(ENABLE_2V8);
pin_clear(OLED_RESET);
}
