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156 rt_uint32_t count_old = SysTick->VAL; in apm32_soft_i2c_udelay() local165 if (count_now != count_old) in apm32_soft_i2c_udelay()167 if (count_now < count_old) in apm32_soft_i2c_udelay()169 count += count_old - count_now; in apm32_soft_i2c_udelay()173 count += reload - count_now + count_old; in apm32_soft_i2c_udelay()175 count_old = count_now; in apm32_soft_i2c_udelay()
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