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sysinit.c
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sysinit.c
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/**************************************************************************/
/*!
@file sysinit.c
@author K. Townsend (microBuilder.eu)
@date 22 March 2010
@version 0.10
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2010, microBuilder SARL
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "sysinit.h"
#include "core/cpu/cpu.h"
#include "core/pmu/pmu.h"
#include "core/adc/adc.h"
#ifdef CFG_PRINTF_UART
#include "core/uart/uart.h"
#endif
#ifdef CFG_INTERFACE
#include "core/cmd/cmd.h"
#endif
#ifdef CFG_ST7565
#include "drivers/displays/bitmap/st7565/st7565.h"
#endif
#ifdef CFG_SSD1306
#include "drivers/displays/bitmap/ssd1306/ssd1306.h"
#endif
#ifdef CFG_LM75B
#include "drivers/sensors/lm75b/lm75b.h"
#endif
#ifdef CFG_CHIBI
#include "drivers/rf/chibi/chb.h"
#endif
#ifdef CFG_SDCARD
#include "core/timer32/timer32.h"
#include "core/ssp/ssp.h"
#include "drivers/fatfs/diskio.h"
#include "drivers/fatfs/ff.h"
DWORD get_fattime ()
{
DWORD tmr = 0;
// tmr = (((DWORD)rtcYear - 80) << 25)
// | ((DWORD)rtcMon << 21)
// | ((DWORD)rtcMday << 16)
// | (WORD)(rtcHour << 11)
// | (WORD)(rtcMin << 5)
// | (WORD)(rtcSec >> 1);
return tmr;
}
#endif
#ifdef CFG_I2CEEPROM
#include "drivers/eeprom/mcp24aa/mcp24aa.h"
#endif
/**************************************************************************/
/*!
Configures the core system clock and sets up any mandatory
peripherals like the systick timer, UART for printf, etc.
This function should set the HW to the default state you wish to be
in coming out of reset/startup, such as disabling or enabling LEDs,
setting specific pin states, etc.
*/
/**************************************************************************/
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
}
/**************************************************************************/
/*!
@brief Sends a single byte to a pre-determined peripheral (UART, etc.).
@param[in] byte
Byte value to send
*/
/**************************************************************************/
void __putchar(const char c)
{
#ifdef CFG_PRINTF_UART
// Send output to UART
uartSendByte(c);
#endif
}
/**************************************************************************/
/*!
@brief Sends a string to a pre-determined end point (UART, etc.).
@param[in] str
Text to send
@note This function is only called when using the GCC-compiler
in Codelite or running the Makefile manually. This function
will not be called when using the C library in Crossworks for
ARM.
*/
/**************************************************************************/
int puts(const char * str)
{
while(*str) __putchar(*str++);
return 0;
}