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PCF8574 - skip detection if i2c address is defined in USE_MCP230xx_ADDR

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Currently the PCF8574 address selection detects the MCP230xx which is using an address in the range 0x20 - 0x26.
This fix skips the address defined in #define USE_MCP230xx_ADDR
This commit is contained in:
ako 2020-02-06 22:45:39 +01:00
parent 175753fb61
commit a33ae3cc40
1 changed files with 6 additions and 0 deletions
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6
tasmota/xdrv_28_pcf8574.ino
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@ -93,6 +93,12 @@ void Pcf8574Init(void)
} }
pcf8574_address++; pcf8574_address++;
#ifdef USE_MCP230xx_ADDR
if (USE_MCP230xx_ADDR == pcf8574_address) {
AddLog_P2(LOG_LEVEL_INFO, PSTR("PCF: Addr: 0x%x reserved for MCP320xx, skipping PCF8574 probe"), pcf8574_address);
pcf8574_address++;
}
#endif
if ((PCF8574_ADDR1 +7) == pcf8574_address) { // Support I2C addresses 0x20 to 0x26 and 0x39 to 0x3F if ((PCF8574_ADDR1 +7) == pcf8574_address) { // Support I2C addresses 0x20 to 0x26 and 0x39 to 0x3F
pcf8574_address = PCF8574_ADDR2 +1; pcf8574_address = PCF8574_ADDR2 +1;
} }