bool bw_spi_dimmer_start(device_info_t *device_info) {
if (device_info->slave_address == (uint8_t) 0) {
device_info->slave_address = BW_DIMMER_DEFAULT_SLAVE_ADDRESS;
}
if (device_info->speed_hz == (uint32_t) 0) {
device_info->speed_hz = (uint32_t) BW_DIMMER_SPI_SPEED_DEFAULT_HZ;
} else if (device_info->speed_hz > (uint32_t) BW_DIMMER_SPI_SPEED_MAX_HZ) {
device_info->speed_hz = (uint32_t) BW_DIMMER_SPI_SPEED_MAX_HZ;
}
if (device_info->chip_select >= SPI_CS2) {
device_info->chip_select = SPI_CS2;
bcm2835_aux_spi_begin();
device_info->internal.clk_div = bcm2835_aux_spi_CalcClockDivider(device_info->speed_hz);
} else {
bcm2835_spi_begin();
device_info->internal.clk_div = (uint16_t)((uint32_t) BCM2835_CORE_CLK_HZ / device_info->speed_hz);
}
char id[BW_ID_STRING_LENGTH+1];
bw_spi_read_id(device_info, id);
if (memcmp(id, "spi_dimmer", 10) == 0) {
return true;
}
return false;
}
int main(void)
{
device_info_t device_info;
UART_BEGIN();
device_info.slave_address = BW_LCD_DEFAULT_SLAVE_ADDRESS;
/** SPI **/
printf("bw_spi_lcd_start\n");
bw_spi_lcd_start(&device_info);
printf("bw_spi_read_id\n");
bw_spi_read_id(&device_info);
printf("bw_spi_lcd_reinit\n");
bw_spi_lcd_reinit(&device_info);
uint8_t backlight;
printf("bw_spi_lcd_get_backlight := ");
bw_spi_lcd_get_backlight(&device_info, &backlight);
printf("%d\n", backlight);
uint8_t contrast;
printf("bw_spi_lcd_get_contrast := ");
bw_spi_lcd_get_contrast(&device_info,&contrast);
printf("%d\n", contrast);
printf("bw_spi_lcd_cls\n");
bw_spi_lcd_cls(&device_info);
printf("bw_spi_lcd_text_line_1\n");
bw_spi_lcd_text_line_1(&device_info, "AVR Atmel", 9);
printf("bw_spi_lcd_text_line_2\n");
bw_spi_lcd_text_line_2(&device_info, "Arduino Uno", 11);
/** I2C **/
printf("bw_i2c_lcd_start\n");
bw_i2c_lcd_start(BW_LCD_DEFAULT_SLAVE_ADDRESS);
printf("bw_i2c_read_id\n");
bw_i2c_read_id(&device_info);
printf("bw_i2c_lcd_reinit\n");
bw_i2c_lcd_reinit();
printf("bw_i2c_lcd_cls\n");
bw_i2c_lcd_cls();
printf("bw_i2c_lcd_text_line_1\n");
bw_i2c_lcd_text_line_1("AVR Atmel", 9);
/** RTC **/
struct rtc_time tm_rtc;
printf("mcp7941x_start\n");
mcp7941x_start(0x00);
printf("mcp7941x_get_date_time\n");
mcp7941x_get_date_time(&tm_rtc);
printf("%.2d:%.2d:%.2d %.2d-%.2d-%.2d\n", tm_rtc.tm_hour, tm_rtc.tm_min, tm_rtc.tm_sec, tm_rtc.tm_mday, tm_rtc.tm_mon, tm_rtc.tm_year);
device_info.slave_address = BW_DIO_DEFAULT_SLAVE_ADDRESS;
printf("bw_i2c_dio_start\n");
bw_i2c_dio_start(&device_info);
printf("bw_i2c_read_id\n");
bw_i2c_read_id(&device_info);
printf("bw_i2c_dio_fsel_mask\n");
bw_i2c_dio_fsel_mask(&device_info, 0x7F);
char buf[9];
while (1)
{
mcp7941x_get_date_time(&tm_rtc);
sprintf(buf, "%.2d:%.2d:%.2d", tm_rtc.tm_hour, tm_rtc.tm_min, tm_rtc.tm_sec);
bw_i2c_lcd_text_line_2(buf, 8);
device_info.slave_address = BW_DIO_DEFAULT_SLAVE_ADDRESS;
bw_i2c_dio_output(&device_info, BW_DIO_PIN_IO0 | BW_DIO_PIN_IO2 | BW_DIO_PIN_IO4 | BW_DIO_PIN_IO6);
_delay_ms(500);
bw_i2c_dio_output(&device_info, BW_DIO_PIN_IO1 | BW_DIO_PIN_IO3 | BW_DIO_PIN_IO5);
_delay_ms(500);
}
}
