mirror of
https://github.com/EFeru/hoverboard-sideboard-hack-GD.git
synced 2025-07-27 17:49:32 +00:00
147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
/*!
|
|
\file gd32f1x0_fwdgt.c
|
|
\brief FWDGT driver
|
|
*/
|
|
|
|
/*
|
|
Copyright (C) 2017 GigaDevice
|
|
|
|
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
|
|
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
|
|
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
|
|
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
|
|
*/
|
|
|
|
#include "gd32f1x0_fwdgt.h"
|
|
|
|
/*!
|
|
\brief disable write access to FWDGT_PSC,FWDGT_RLD and FWDGT_WND
|
|
\param[in] none
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void fwdgt_write_disable(void)
|
|
{
|
|
FWDGT_CTL = FWDGT_WRITEACCESS_DISABLE;
|
|
}
|
|
|
|
/*!
|
|
\brief reload the counter of FWDGT
|
|
\param[in] none
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void fwdgt_counter_reload(void)
|
|
{
|
|
FWDGT_CTL = FWDGT_KEY_RELOAD;
|
|
}
|
|
|
|
/*!
|
|
\brief start the free watchdog timer counter
|
|
\param[in] none
|
|
\param[out] none
|
|
\retval none
|
|
*/
|
|
void fwdgt_enable(void)
|
|
{
|
|
FWDGT_CTL = FWDGT_KEY_ENABLE;
|
|
}
|
|
|
|
/*!
|
|
\brief configure the free watchdog timer counter window value
|
|
\param[in] window_value: specify window value(0x0000 - 0x0FFF)
|
|
\param[out] none
|
|
\retval ErrStatus: ERROR or SUCCESS
|
|
*/
|
|
ErrStatus fwdgt_window_value_config(uint16_t window_value)
|
|
{
|
|
uint32_t time_index = FWDGT_WND_TIMEOUT;
|
|
uint32_t flag_status = RESET;
|
|
|
|
/* enable write access to FWDGT_WND */
|
|
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
|
|
|
|
/* wait until the WUD flag to be reset */
|
|
do{
|
|
flag_status = FWDGT_STAT & FWDGT_STAT_WUD;
|
|
}while((--time_index > 0U) && ((uint32_t)RESET != flag_status));
|
|
|
|
if ((uint32_t)RESET != flag_status){
|
|
return ERROR;
|
|
}
|
|
|
|
FWDGT_WND = WND_WND(window_value);
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*!
|
|
\brief configure counter reload value, and prescaler divider value
|
|
\param[in] reload_value: specify reload value(0x0000 - 0x0FFF)
|
|
\param[in] prescaler_div: FWDGT prescaler value
|
|
\arg FWDGT_PSC_DIV4: FWDGT prescaler set to 4
|
|
\arg FWDGT_PSC_DIV8: FWDGT prescaler set to 8
|
|
\arg FWDGT_PSC_DIV16: FWDGT prescaler set to 16
|
|
\arg FWDGT_PSC_DIV32: FWDGT prescaler set to 32
|
|
\arg FWDGT_PSC_DIV64: FWDGT prescaler set to 64
|
|
\arg FWDGT_PSC_DIV128: FWDGT prescaler set to 128
|
|
\arg FWDGT_PSC_DIV256: FWDGT prescaler set to 256
|
|
\param[out] none
|
|
\retval ErrStatus: ERROR or SUCCESS
|
|
*/
|
|
ErrStatus fwdgt_config(uint16_t reload_value, uint8_t prescaler_div)
|
|
{
|
|
uint32_t timeout = FWDGT_PSC_TIMEOUT;
|
|
uint32_t flag_status = RESET;
|
|
|
|
/* enable write access to FWDGT_PSC,and FWDGT_RLD */
|
|
FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
|
|
|
|
/* wait until the PUD flag to be reset */
|
|
do{
|
|
flag_status = FWDGT_STAT & FWDGT_STAT_PUD;
|
|
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
|
|
|
|
if ((uint32_t)RESET != flag_status){
|
|
return ERROR;
|
|
}
|
|
|
|
/* configure FWDGT */
|
|
FWDGT_PSC = (uint32_t)prescaler_div;
|
|
|
|
timeout = FWDGT_RLD_TIMEOUT;
|
|
/* wait until the RUD flag to be reset */
|
|
do{
|
|
flag_status = FWDGT_STAT & FWDGT_STAT_RUD;
|
|
}while((--timeout > 0U) && ((uint32_t)RESET != flag_status));
|
|
|
|
if ((uint32_t)RESET != flag_status){
|
|
return ERROR;
|
|
}
|
|
|
|
FWDGT_RLD = RLD_RLD(reload_value);
|
|
|
|
/* reload the counter */
|
|
FWDGT_CTL = FWDGT_KEY_RELOAD;
|
|
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*!
|
|
\brief get flag state of FWDGT
|
|
\param[in] flag: flag to get
|
|
\arg FWDGT_FLAG_PUD: a write operation to FWDGT_PSC register is on going
|
|
\arg FWDGT_FLAG_RUD: a write operation to FWDGT_RLD register is on going
|
|
\arg FWDGT_FLAG_WUD: a write operation to FWDGT_WND register is on going
|
|
\param[out] none
|
|
\retval FlagStatus: SET or RESET
|
|
*/
|
|
FlagStatus fwdgt_flag_get(uint16_t flag)
|
|
{
|
|
if(FWDGT_STAT & flag){
|
|
return SET;
|
|
}
|
|
|
|
return RESET;
|
|
}
|