huxi
242 lines
6.1 KiB
C
242 lines
6.1 KiB
C
#ifdef SUPPORT_MS_EXTENSIONS
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#pragma bss_seg(".ntc_det.data.bss")
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#pragma data_seg(".ntc_det.data")
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#pragma const_seg(".ntc_det.text.const")
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#pragma code_seg(".ntc_det.text")
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#endif
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//*********************************************************************************//
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// NTC det //
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//*********************************************************************************//
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//
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//
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#include "gpadc.h"
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#include "ntc_det_api.h"
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#include "system/includes.h"
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#include "asm/charge.h"
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#include "app_msg.h"
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#include "asm/efuse.h"
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#define NTC_USED_INPUT_100K 1//使用内部上拉
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#if NTC_USED_INPUT_100K
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static u32 efuse_pb00_100k;
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#endif
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#if NTC_DET_EN
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#define NTC_DET_BAD_RES 0 //分压电阻损坏关闭检测
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#ifndef NTC_DET_DUTY1
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#define NTC_DET_DUTY1 5000 //检测周期
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#endif
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#ifndef NTC_DET_DUTY2
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#define NTC_DET_DUTY2 10 //检测小周期
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#endif
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#ifndef NTC_DET_CNT
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#define NTC_DET_CNT 3 //检测次数
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#endif
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#ifndef NTC_DET_UPPER
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#define NTC_DET_UPPER 322*1000 //正常范围AD值上限，0度时电阻值
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#endif
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#ifndef NTC_DET_LOWER
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#define NTC_DET_LOWER 44*1000 //正常范围AD值下限，45度时电阻值
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#endif
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#define NTC_REDCOEFF 10*1000 //温度恢复一定范围后才算正常，防止临界状态,默认设置10k的安全范围,参考100k的电阻
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#define NTC_IS_NORMAL(value, offset) (value >= NTC_DET_LOWER+(offset) && value <= NTC_DET_UPPER-(offset))
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#define NTC_IS_BAD_RES(value) (value >= 3273*1000 || value <= 2197) //大于142度或者低于-40
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enum {
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NTC_STATE_NORMAL = 0,
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NTC_STATE_ABNORMAL,
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};
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struct ntc_det_t {
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u16 normal_cnt : 4; //温度正常的次数
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u16 cnt : 4; //温度检测的次数
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u16 res_cnt : 4; //分压电阻脱落或损坏
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u16 state : 1; //是否超出范围
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u16 timer;
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};
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static struct ntc_det_t ntc_det = {0};
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extern u8 get_charge_full_flag(void);
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u16 ntc_det_working()
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{
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return ntc_det.timer;
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}
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#define NTC_AD_MAX 4096
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static u32 ntc_ad_ohm(u32 adc)
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{
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return (u32)((adc * efuse_pb00_100k) / ((float)(NTC_AD_MAX - adc)));
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}
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static void ntc_det_timer_deal(void *priv)
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{
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u32 value;
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#if NTC_DET_CNT
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if (ntc_det.cnt == 0) {
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sys_timer_modify(ntc_det.timer, NTC_DET_DUTY2);
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}
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#endif
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value = adc_get_value(NTC_DET_AD_CH);
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value = ntc_ad_ohm(value);
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printf("adc %d ohm \n", value);
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ntc_det.cnt++;
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if (NTC_IS_NORMAL(value, (ntc_det.state * NTC_REDCOEFF))) { //温度恢复一定范围后才算正常，防止临界状态,默认设置10k的安全范围
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ntc_det.normal_cnt++;
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} else if (NTC_IS_BAD_RES(value)) {
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ntc_det.res_cnt++;
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}
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if (ntc_det.cnt >= NTC_DET_CNT) {
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if (ntc_det.normal_cnt > NTC_DET_CNT / 2) {
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if (ntc_det.state == NTC_STATE_ABNORMAL) {
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printf("temperature recover, start charge");
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ntc_det.state = NTC_STATE_NORMAL;
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charge_start();
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}
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}
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#if NTC_DET_BAD_RES
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else if (ntc_det.res_cnt > NTC_DET_CNT / 2) {
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printf("bad res, stop det");
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ntc_det_stop();
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}
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#endif
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else {
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if (ntc_det.state == NTC_STATE_NORMAL) {
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printf("temperature is abnormall, stop charge");
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ntc_det.state = NTC_STATE_ABNORMAL;
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charge_close();
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CHARGE_EN(0);
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}
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/* power_set_soft_poweroff(); */
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}
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ntc_det.cnt = 0;
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ntc_det.res_cnt = 0;
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ntc_det.normal_cnt = 0;
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sys_timer_modify(ntc_det.timer, NTC_DET_DUTY1);
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}
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}
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void ntc_det_start(void)
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{
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if (ntc_det.timer == 0) {
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printf("ntc det start");
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memset(&ntc_det, 0, sizeof(ntc_det));
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gpio_write(NTC_POWER_IO, 1);
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#if NTC_USED_INPUT_100K
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if (!efuse_pb00_100k) {
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u8 efuse_100k = efuse_get_io_pu_100k();
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if (efuse_100k != 0xff) {
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s8 offset = (efuse_100k & 0x80) ? -(efuse_100k & 0x7F) : efuse_100k;
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efuse_pb00_100k = (u32)((3072 - (524 + offset) * 3) / 0.015f);
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} else {
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printf("PB0_100k not trim\n");
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efuse_pb00_100k = 10 * 1000;
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}
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}
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ASSERT(efuse_pb00_100k > 50 * 1000 && efuse_pb00_100k < 150 * 1000);
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ASSERT(NTC_DETECT_IO == IO_PORTB_00);
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gpio_set_mode(IO_PORT_SPILT(NTC_DETECT_IO), PORT_HIGHZ);
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gpio_hw_set_pull_up(IO_PORT_SPILT(NTC_DETECT_IO), GPIO_PULLUP_100K);
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#else
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gpio_set_mode(IO_PORT_SPILT(NTC_DETECT_IO), PORT_HIGHZ);
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#endif
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adc_add_sample_ch(NTC_DET_AD_CH);
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adc_delay_set(NTC_DET_AD_CH, 0, 9);//采用不准可以延长采样时间0~15
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ntc_det.timer = sys_timer_add(NULL, ntc_det_timer_deal, NTC_DET_DUTY1);
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}
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}
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void ntc_det_stop(void)
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{
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if (!get_charge_full_flag() && get_charge_online_flag() && ntc_det.state == NTC_STATE_ABNORMAL) {
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printf("charge protecting, wait recover");
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return;
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}
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if (ntc_det.timer) {
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printf("ntc det stop");
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sys_timer_del(ntc_det.timer);
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ntc_det.timer = 0;
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adc_delete_ch(NTC_DET_AD_CH);
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gpio_set_mode(IO_PORT_SPILT(NTC_POWER_IO), PORT_HIGHZ);
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}
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}
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#if TCFG_CHARGE_ENABLE
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static int ntc_msg_entry(int *msg)
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{
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switch (msg[0]) {
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case CHARGE_EVENT_CHARGE_START:
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ntc_det_start();
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break;
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case CHARGE_EVENT_CHARGE_CLOSE:
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ntc_det_stop();
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break;
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case CHARGE_EVENT_LDO5V_KEEP:
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ntc_det_stop();
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}
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return 0;
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}
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APP_MSG_PROB_HANDLER(ntc_msg_entry) = {
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.owner = 0xff,
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.from = MSG_FROM_BATTERY,
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.handler = ntc_event_handler,
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};
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#endif
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/* --------------------------------------------------------------------------*/
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/**
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* @brief ntc否可进低功耗查询函数
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*
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* @return 0：不可进
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* 1：可进
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*/
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/* ----------------------------------------------------------------------------*/
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static u8 ntc_idle_query(void)
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{
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if (ntc_det.timer) {
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return 0;
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} else {
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return 1;
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}
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}
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/* REGISTER_LP_TARGET(ntc_driver_target) = { */
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/* .name = "ntc", */
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/* .is_idle = ntc_idle_query, */
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/* }; */
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#endif
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