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