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| − | [[category: ARM Tutorials]] | + | #REDIRECT [[LPC1768: ADC Programming]] |
| − | [[User:Amruta|Amruta]] ([[User talk:Amruta|talk]]) 13:28, 17 March 2015 (IST)
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| − | ----
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| − | =Basics=
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| − | LPC1768 has 12 bit ADC which is multiplexed among 8 input pins. It's measurement range is typically 3V which means that ADC resolution is approximately 0.7 mV.
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| − | | + | |
| − | ===Registers===
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| − | Here we will discuss commonly used ADC registers.
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| − | =====ADCR(ADC Control Register)=====
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| − | =====ADGDR(ADC Global Data Register)=====
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| − | =====ADSTAT(ADC Status Register)=====
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| − | | + | |
| − | =Schematic=
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| − | =Code=
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| − | <syntaxhighlight>
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| − | /*-----------------------------------------------------------------------------
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| − | note : Refer adc.h to enable ADC channels.
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| − | ------------------------------------------------------------------------------*/
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| − | #include "lpc17xx.h" //device specific heaader file
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| − | #include "uart.h" //Explore Embedded UART library which conatins the lcd routines
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| − | #include "adc.h" //Explore Embedded ADC library which conatins the adc routines
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| − | /* start the main program */
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| − | int main()
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| − | {
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| − | uint16_t adc_result;
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| − | /* Setup and initialize the microcontroller system */
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| − | SystemInit();
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| − | /* Initialize the UART before displaying any thing on the lcd */
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| − | UART_Init(UART0,9600);
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| − | /* Initialize the adc before starting the conversion */
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| − | ADC_Init();
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| − | /* Display "ADC Channel zero" on first line*/
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| − | UART_Printf("ADC Channel zero");
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| − | /* Display the adc channel zero value continously */
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| − | while(1)
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| − | {
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| − | /*Get the adc value of channel five */
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| − | adc_result= ADC_GetAdcValue(5);
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| − |
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| − | /*Display the adc value on UART*/
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| − | UART_Printf("\n %u",adc_result);
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| − | }
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| − | }
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| − | </syntaxhighlight>
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| − | {{DISQUS}}
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