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https://github.com/UberGuidoZ/Flipper.git
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35 lines
998 B
C
35 lines
998 B
C
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#include "i2cscanner.h"
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void scan_i2c_bus(i2cScanner* i2c_scanner) {
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i2c_scanner->nb_found = 0;
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i2c_scanner->scanned = true;
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// Get the bus
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furi_hal_i2c_acquire(I2C_BUS);
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// scan
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for(uint8_t addr = 0x01; addr <= MAX_I2C_ADDR << 1; addr++) {
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// Check for peripherals
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if(furi_hal_i2c_is_device_ready(I2C_BUS, addr, I2C_TIMEOUT)) {
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// skip even 8-bit addr
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if(addr % 2 != 0) {
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continue;
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}
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// convert addr to 7-bits
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i2c_scanner->addresses[i2c_scanner->nb_found] = addr >> 1;
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i2c_scanner->nb_found++;
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}
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}
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furi_hal_i2c_release(I2C_BUS);
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}
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i2cScanner* i2c_scanner_alloc() {
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i2cScanner* i2c_scanner = malloc(sizeof(i2cScanner));
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i2c_scanner->nb_found = 0;
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i2c_scanner->menu_index = 0;
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i2c_scanner->scanned = false;
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return i2c_scanner;
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}
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void i2c_scanner_free(i2cScanner* i2c_scanner) {
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furi_assert(i2c_scanner);
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free(i2c_scanner);
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}
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