Mercurial > public > ostc4
diff Small_CPU/Src/externalInterface.c @ 704:f1b40364b0af
Added protocol functions for UART DiveO2 sensor:
The code has been modified to support the handling of several protocols (including baud rate changes). The data is requested by polling and passed via DMA into a ringbuffer which is then parsed by a cyclic function call in the main loop. At the moment only the O2 values are forwarded but because the sensor send several types of data within a signle message already more is extracted but yet discarded.
| author | Ideenmodellierer |
|---|---|
| date | Fri, 28 Oct 2022 20:49:21 +0200 |
| parents | 52d68cf9994c |
| children | 045ff7800501 |
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--- a/Small_CPU/Src/externalInterface.c Fri Oct 28 20:32:24 2022 +0200 +++ b/Small_CPU/Src/externalInterface.c Fri Oct 28 20:49:21 2022 +0200 @@ -57,6 +57,7 @@ float externalChannel_mV[MAX_ADC_CHANNEL]; static uint8_t externalV33_On = 0; static uint8_t externalADC_On = 0; +static uint8_t externalUART_Protocol = 0; static uint16_t externalCO2Value; static uint16_t externalCO2SignalStrength; static uint16_t externalCO2Status = 0; @@ -111,7 +112,14 @@ activeChannel++; if(activeChannel == MAX_ADC_CHANNEL) { - activeChannel = 0; + if(externalUART_Protocol == (EXT_INTERFACE_UART_O2 >> 8)) /* mixed mode digital and analog o2 sensors => channel 0 is reserved for digital sensor */ + { + activeChannel = 1; + } + else + { + activeChannel = 0; + } } externalInterface_StartConversion(activeChannel); timeoutCnt = 0; @@ -218,6 +226,11 @@ return externalADC_On; } +uint8_t externalInterface_GetUARTProtocol() +{ + return externalUART_Protocol; +} + void externalInterface_SwitchPower33(uint8_t state) { if(state != externalV33_On) @@ -226,7 +239,6 @@ { HAL_GPIO_WritePin(GPIOC,GPIO_PIN_7,GPIO_PIN_RESET); externalV33_On = 1; - MX_USART1_UART_Init(); } else { @@ -234,7 +246,6 @@ externalV33_On = 0; externalInterface_SetCO2Value(0); externalInterface_SetCO2SignalStrength(0); - MX_USART1_UART_DeInit(); } } } @@ -251,6 +262,19 @@ } } +void externalInterface_SwitchUART(uint8_t protocol) +{ + if(protocol < 0x08) + { + externalUART_Protocol = protocol; + MX_USART1_UART_DeInit(); + if( protocol != 0) + { + MX_USART1_UART_Init(); + } + } +} + void externalInterface_SetCO2Value(uint16_t CO2_ppm) { externalCO2Value = CO2_ppm;