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Fix USB failure due to VL53L0x wait

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whowechina 2023-11-19 16:55:47 +08:00
parent 505ac4e24c
commit 273d05d625
1 changed files with 4 additions and 6 deletions
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10
firmware/src/vl53l0x.c
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@ -773,16 +773,14 @@ void vl53l0x_stop_continuous()
// single-shot range measurement) // single-shot range measurement)
uint16_t readRangeContinuousMillimeters() uint16_t readRangeContinuousMillimeters()
{ {
uint32_t start = time_us_32(); static uint16_t range = 65535;
while ((read_reg(RESULT_INTERRUPT_STATUS) & 0x07) == 0) { if ((read_reg(RESULT_INTERRUPT_STATUS) & 0x07) == 0) {
if (time_us_32() - start > IO_TIMEOUT_US) { return range; // use last result
return 65535;
}
} }
// assumptions: Linearity Corrective Gain is 1000 (default); // assumptions: Linearity Corrective Gain is 1000 (default);
// fractional ranging is not enabled // fractional ranging is not enabled
uint16_t range = read_reg16(RESULT_RANGE_STATUS + 10); range = read_reg16(RESULT_RANGE_STATUS + 10);
write_reg(SYSTEM_INTERRUPT_CLEAR, 0x01); write_reg(SYSTEM_INTERRUPT_CLEAR, 0x01);