diff --git a/demo/adc/REAEME.md b/demo/adc/REAEME.md
new file mode 100644
index 0000000..e5bdd79
--- /dev/null
+++ b/demo/adc/REAEME.md
@@ -0,0 +1,35 @@
+# STC8H Channels and Accuracy
+
+| Line              |   Accuracy |  Channels      |
+|  ---------------- | ---------- | -------------- | 
+| STC8H1K08 series     | 10-bit     |    9 channels  |
+| STC8H1K28 series     | 10-bit     |    12 channels |   
+| STC8H3K64S4 series   | 12-bit     |    12 channels |   
+| STC8H3K64S2 series   | 12-bit     |    12 channels |   
+| STC8H8K64U series    | 12-bit     |    15 channels |   
+| STC8H2K64T series    | 12-bit     |    15 channels |   
+| STC8H4K64TLR series  | 12-bit     |    15 channels |   
+| STC8H4K64TLCD series | 12-bit     |    15 channels |   
+| STC8H4K64LCD series  | 12-bit     |    15 channels | 
+
+
+# STC8G/STC8H ADC Channels Definition
+
+|       |   STC8H1K28  | STC8H1K08    | STC8H3K64S4<br>STC8H3K64S2    | STC8H8K64U<br>STC8H2K64T<br>STC8H4K64TLR    | STC8H4K64TLCD<br>STC8H4K64LCD   | STC8G1K08A | STC8G1K08<br>STC8G1K08T   | STC8G2K64S4<br>STC8G2K64S2 |     
+|  ---- | ------------ | ------------ | -------------- | --------------- | -------------- | ---------- | -----------  | ----------- |             
+|  0000 | P1.0/ADC0    |  P1.0/ADC0   |  P1.0/ADC0     |  P1.0/ADC0      |  P1.0/ADC0     |  P3.0/ADC0 |  P1.0/ADC0   |  P1.0/ADC0  |                    
+|  0001 | P1.1/ADC1    |  P1.1/ADC1   |  P1.1/ADC1     |  P1.1/ADC1      |  P1.1/ADC1     |  P3.1/ADC1 |  P1.1/ADC1   |  P1.1/ADC1  |                    
+|  0010 | P1.2/ADC2    |  N/A         |  P1.2/ADC2     |  P5.4/ADC2      |  P5.4/ADC2     |  P3.2/ADC2 |  P1.2/ADC2   |  P1.2/ADC2  |              
+|  0011 | P1.3/ADC3    |  N/A         |  N/A           |  P1.3/ADC3      |  P1.3/ADC3     |  P3.3/ADC3 |  P1.3/ADC3   |  P1.3/ADC3  |                
+|  0100 | P1.4/ADC4    |  N/A         |  N/A           |  P1.4/ADC4      |  P1.4/ADC4     |  P5.4/ADC4 |  P1.4/ADC4   |  P1.4/ADC4  |                 
+|  0101 | P1.5/ADC5    |  N/A         |  N/A           |  P1.5/ADC5      |  P1.5/ADC5     |  P5.5/ADC5 |  P1.5/ADC5   |  P1.5/ADC5  |                   
+|  0110 | P1.6/ADC6    |  N/A         |  P1.6/ADC6     |  P1.6/ADC6      |  P6.2/ADC6     |  N/A       |  P1.6/ADC6   |  P1.6/ADC6  |        
+|  0111 | P1.7/ADC7    |  N/A         |  P1.7/ADC7     |  P1.7/ADC7      |  P6.3/ADC7     |  N/A       |  P1.7/ADC7   |  P1.7/ADC7  |        
+|  1000 | P0.0/ADC8    |  P3.0/ADC8   |  P0.0/ADC8     |  P0.0/ADC8      |  P0.0/ADC8     |  N/A       |  P3.0/ADC8   |  P0.0/ADC8  |              
+|  1001 | P0.1/ADC9    |  P3.1/ADC9   |  P0.1/ADC9     |  P0.1/ADC9      |  P0.1/ADC9     |  N/A       |  P3.1/ADC9   |  P0.1/ADC9  |              
+|  1010 | P0.2/ADC10   |  P3.2/ADC10  |  P0.2/ADC10    |  P0.2/ADC10     |  P0.2/ADC10    |  N/A       |  P3.2/ADC10  |  P0.2/ADC10 |                     
+|  1011 | P0.3/ADC11   |  P3.3/ADC11  |  P0.3/ADC11    |  P0.3/ADC11     |  P0.3/ADC11    |  N/A       |  P3.3/ADC11  |  P0.3/ADC11 |                     
+|  1100 | N/A          |  P3.4/ADC12  |  P0.4/ADC12    |  P0.4/ADC12     |  P0.4/ADC12    |  N/A       |  P3.4/ADC12  |  P0.4/ADC12 |              
+|  1101 | N/A          |  P3.5/ADC13  |  P0.5/ADC13    |  P0.5/ADC13     |  P0.5/ADC13    |  N/A       |  P3.5/ADC13  |  P0.5/ADC13 |              
+|  1110 | N/A          |  P3.6/ADC14  |  P0.6/ADC14    |  P0.6/ADC14     |  P0.6/ADC14    |  N/A       |  P3.6/ADC14  |  P0.6/ADC14 |              
+|  1111 | 1.19Vref     |  1.19Vref    |  1.19Vref      |  1.19Vref       |  1.19Vref      |  1.19Vref  |  1.19Vref    |  1.19Vref   |
diff --git a/demo/adc/adc_interrupt_10bit.c b/demo/adc/adc_interrupt_10bit.c
index 464e64e..fd6a4df 100644
--- a/demo/adc/adc_interrupt_10bit.c
+++ b/demo/adc/adc_interrupt_10bit.c
@@ -58,10 +58,11 @@ void main(void)
     EXTI_ADC_SetIntState(HAL_State_ON);
     // Turn on ADC power
     ADC_SetPowerState(HAL_State_ON);
+    // Start ADC
+    ADC_Start();
 
     while(1)
     {
-        ADC_Start();
         UART1_TxString("Result: ");
         UART1_TxHex(res >> 8);
         UART1_TxHex(res & 0xFF);
diff --git a/demo/adc/adc_interrupt_2ch.c b/demo/adc/adc_interrupt_2ch.c
index 0e932d1..d1095ae 100644
--- a/demo/adc/adc_interrupt_2ch.c
+++ b/demo/adc/adc_interrupt_2ch.c
@@ -78,6 +78,7 @@ void main(void)
     ADC_SetPowerState(HAL_State_ON);
     // Set ADC1(P1.1), ADC2(P1.2) HIP
     GPIO_P1_SetMode(GPIO_Pin_1|GPIO_Pin_2, GPIO_Mode_Input_HIP);
+    // Start ADC
     ADC_Start();
 
     while(1)