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43 lines
882 B
43 lines
882 B
/*
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I2C MODULE
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Copyright (C) 2017 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#if ENABLE_I2C
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#include "brzo_i2c.h"
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void i2cScan() {
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uint8_t address;
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uint8_t response;
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uint8_t buffer[1];
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int nDevices = 0;
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for (address = 1; address < 128; address++) {
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brzo_i2c_start_transaction(address, I2C_SCL_FREQUENCY);
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brzo_i2c_ACK_polling(1000);
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response = brzo_i2c_end_transaction();
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if (response == 0) {
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Serial.printf("[I2C] Device found at address 0x%02X\n", address);
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nDevices++;
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} else if (response != 32) {
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//Serial.printf("[I2C] Unknown error at address 0x%02X\n", address);
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}
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}
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if (nDevices == 0) Serial.println("[I2C] No devices found");
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}
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void i2cSetup() {
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brzo_i2c_setup(I2C_SDA_PIN, I2C_SCL_PIN, I2C_CLOCK_STRETCH_TIME);
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i2cScan();
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}
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#endif
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