MSP430FR2433如何才能缩短上电时间呢？

只看该作者 · 2023-2-24 14:54

本帖最后由 xyz549040622 于 2023-2-27 16:49 编辑

我目前看波形发现芯片掉电到1.4V后，重现上电到跑进程序需要20ms左右的时间，有没有办法可以缩短上电进入程序的时间

int main(void)
{

Init_MCU();
Init_CLOCKS();

// SFRRPCR=0x000c;

P1SEL0 |= BIT2 | BIT3;
CE_7100_SET_OUT;
CE_7100_OUT_0;
CE_7100_OUT_1;CE_7100_OUT_0;
SYSCFG0 = FRWPPW | DFWP;

if(Write_flag.mode == cmd03nack)
Write_flag.count.CMD03 ++;
if(Write_flag.count.CMD03 == 2)
Write_flag.mode = normal;
if(Write_flag.mode != cmd03nack)
Init_IIC(Box_ID);

//Tim初始化
g_sn_change.tim_count=0; //clear
g_sn_change.Check_ID0105_flag=0;
g_sn_change.VDD_START_FLAG=0;
if(attest_flag==5)
{
Init_TIM(); //关闭TIM
TA0CTL |= TASSEL_2+MC_1+ID_2; //设置定时器计数模式开启
TA0CCTL0 = CCIE;
g_sn_change.tim_count=0;
g_sn_change.Check_ID0105_flag==1;
}
else if(attest_flag!=6)
{
Init_TIM(); //关闭TIM
attest_flag=0;
}
Change_ID=ID_BUF[ID_NUM]; //每次上电，确认当前码表的ID
DATA_7100_SET_OUT;
DATA_7100_OUT_0;

// CE_7100_SET_OUT;
CLK_7100_SET_OUT;
CLK_7100_OUT_0;
CE_7100_OUT_0;
// delay_us(100);
CE_7100_OUT_1;CE_7100_OUT_0;

// if(CJ7100_start_flag==1)
// {
// VDD_7100_SET_OUT;
// memset(Check_cj7100sn, 0, sizeof(Check_cj7100sn));
// while(CJ7100_start_flag==1) //7100数据异常，重新debug写码
// {
// VDD_7100_OUT_0;delay_ms(20); CJ7100_DEBUG_RST();
//
// f_7100_SN();
// if(strncmp(FRAM_write+0x440,Check_cj7100sn,12)==0)
// {
// CJ7100_start_flag=0;
// }
// else {
// CJ7100_start_flag=1;
// }
// }
// }

SYSCFG0 = FRWPPW | PFWP | DFWP;

while (1)

{

}