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Fix VL53L0X timeout issue

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This commit is contained in:
whowechina 2023-11-19 16:38:54 +08:00
parent df047086ee
commit 505ac4e24c
1 changed files with 6 additions and 3 deletions
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9
firmware/src/vl53l0x.c
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@ -15,7 +15,7 @@
#define VL53L0X_DEF_ADDR 0x29
#define IO_TIMEOUT_US 10000
#define IO_TIMEOUT_US 25000
// Decode VCSEL (vertical cavity surface emitting laser) pulse period in PCLKs
#define decodeVcselPeriod(reg_val) (((reg_val) + 1) << 1)
@ -773,8 +773,11 @@ void vl53l0x_stop_continuous()
// single-shot range measurement)
uint16_t readRangeContinuousMillimeters()
{
if ((read_reg(RESULT_INTERRUPT_STATUS) & 0x07) == 0) {
return 65535;
uint32_t start = time_us_32();
while ((read_reg(RESULT_INTERRUPT_STATUS) & 0x07) == 0) {
if (time_us_32() - start > IO_TIMEOUT_US) {
return 65535;
}
}
// assumptions: Linearity Corrective Gain is 1000 (default);