error_t lm75bConfigWrite (uint8_t configValue)
{
if (!_lm75bInitialised)
{
ASSERT_STATUS(lm75bInit());
}
ASSERT_STATUS(lm75bWrite8(LM75B_REGISTER_CONFIGURATION, configValue));
return ERROR_NONE;
}
error_t lm75bGetTemperature (int32_t *temp)
{
if (!_lm75bInitialised)
{
ASSERT_STATUS(lm75bInit());
}
/* Turn device on */
ASSERT_STATUS(lm75bConfigWrite (LM75B_CONFIG_SHUTDOWN_POWERON));
/* Read temperature */
ASSERT_STATUS(lm75bRead16 (LM75B_REGISTER_TEMPERATURE, temp));
/* Shut device back down */
ASSERT_STATUS(lm75bConfigWrite (LM75B_CONFIG_SHUTDOWN_SHUTDOWN));
return ERROR_NONE;
}
void systemInit()
{
cpuInit();
systickInit((CFG_CPU_CCLK / 1000) * CFG_SYSTICK_DELAY_IN_MS);
gpioInit();
pmuInit();
adcInit(); // Init adc pins to avoid wasting 60uA in deep sleep
#ifdef CFG_PRINTF_UART
// Initialise UART with the default baud rate (set in projectconfig.h)
uartInit(CFG_UART_BAUDRATE);
#endif
// Switch to 3.3V if TPS780 (etc.) is being used
#if defined CFG_VREG_ALT_PRESENT && CFG_VREG_ALT_PRESENT == 1
gpioSetDir(CFG_VREG_ALT_PORT, CFG_VREG_ALT_PIN, gpioDirection_Output);
gpioSetValue(CFG_VREG_ALT_PORT, CFG_VREG_ALT_PIN, 0);
gpioSetPullup(&CFG_VREG_ALT_REG32, gpioPullupMode_Inactive);
#endif
// Set LED pin as output and turn LED off
gpioSetDir(CFG_LED_PORT, CFG_LED_PIN, 1);
gpioSetValue(CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
// Initialise the ST7565 128x64 pixel display
#ifdef CFG_ST7565
st7565Init();
st7565ClearScreen(); // Clear the screen
st7565Backlight(1); // Enable the backlight
#endif
// Initialise the SSD1306 OLED display
#ifdef CFG_SSD1306
ssd1306Init(SSD1306_SWITCHCAPVCC);
ssd1306ClearScreen(); // Clear the screen
#endif
// Initialise EEPROM
#ifdef CFG_I2CEEPROM
mcp24aaInit();
#endif
// Initialise Chibi
#ifdef CFG_CHIBI
// Write addresses to EEPROM for the first time if necessary
// uint16_t addr_short = 0x1166;
// uint64_t addr_ieee = addr_short;
// mcp24aaWriteBuffer(CFG_CHIBI_EEPROM_SHORTADDR, (uint8_t *)&addr_short, 2);
// mcp24aaWriteBuffer(CFG_CHIBI_EEPROM_IEEEADDR, (uint8_t *)&addr_ieee, 8);
chb_init();
#endif
// Setup SD Card
#ifdef CFG_SDCARD
// Turn off SD card by default (saves power)
gpioSetDir(CFG_SDCARD_ENPORT, CFG_SDCARD_ENPIN, gpioDirection_Output); /* Set enable pin to output */
gpioSetValue(CFG_SDCARD_ENPORT, CFG_SDCARD_ENPIN, 0); /* Disable card by setting ENPIN low */
gpioSetPullup(&CFG_SDCARD_ENREG32, gpioPullupMode_Inactive);
#endif
#ifdef CFG_LM75B
// Initialise LM75B
lm75bInit();
// Read temp once to make sure we are in sleep mode
int32_t temp;
lm75bGetTemperature(&temp);
#endif
#ifdef CFG_BAT
// Turn off battery voltage divider by default
gpioSetDir(CFG_BAT_ENPORT, CFG_BAT_ENPIN, gpioDirection_Output ); // Set voltage divider enable pin to output
gpioSetValue(CFG_BAT_ENPORT, CFG_BAT_ENPIN, 0 ); // Disable the voltage divider by default
gpioSetPullup(&CFG_BAT_ENREG32, gpioPullupMode_Inactive);
#endif
// Start the command line interface (if requested)
#ifdef CFG_INTERFACE
printf("%sType '?' for a list of available commands%s", CFG_PRINTF_NEWLINE, CFG_PRINTF_NEWLINE);
cmdInit();
#endif
}
