Ilgrim/FwLib_STC8
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This commit is contained in:
IOsetting 2022-02-09 14:49:48 +08:00
parent 1dc7666b27
commit 3d22dac649
1 changed files with 141 additions and 151 deletions
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74
demo/usb/usb_keyboard.c
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@ -23,8 +23,6 @@
#include "fw_hal.h" #include "fw_hal.h"
#include <string.h> #include <string.h>
#define MAIN_Fosc 24000000L
#define Timer0_Reload (65536UL -(MAIN_Fosc / 1000)) //Timer 0 frequency 1000Hz
#define KeyIO P0 #define KeyIO P0
__BIT B_1ms; // 1ms flag __BIT B_1ms; // 1ms flag
@ -53,13 +51,12 @@ void USB_Init(void);
void KeyScan(void); void KeyScan(void);
void SendKeyStatus(void); void SendKeyStatus(void);
void main() void main()
{ {
uint8_t i; uint8_t i;
GPIO_P1_SetMode(GPIO_Pin_All, GPIO_Mode_InOut_QBD); GPIO_P1_SetMode(GPIO_Pin_All, GPIO_Mode_InOut_QBD);
GPIO_P3_SetMode(GPIO_Pin_0|GPIO_Pin_1, GPIO_Mode_Input_HIP); GPIO_P3_SetMode(GPIO_Pin_0 | GPIO_Pin_1, GPIO_Mode_Input_HIP);
GPIO_P6_SetMode(GPIO_Pin_All, GPIO_Mode_Output_PP); GPIO_P6_SetMode(GPIO_Pin_All, GPIO_Mode_Output_PP);
USB_Init(); USB_Init();
@ -70,22 +67,22 @@ void main()
TIM_Timer0_SetRunState(HAL_State_ON); TIM_Timer0_SetRunState(HAL_State_ON);
EXTI_Global_SetIntState(HAL_State_ON); EXTI_Global_SetIntState(HAL_State_ON);
for(i = 0; i < 8; i++) for (i = 0; i < 8; i++)
{ {
HidInput[i]=0; HidInput[i] = 0;
} }
while (1) while (1)
{ {
if(B_1ms) // every 1 ms if (B_1ms) // every 1 ms
{ {
B_1ms = 0; B_1ms = 0;
if(++cnt50ms >= 50) // scan every 50 ms if (++cnt50ms >= 50) // scan every 50 ms
{ {
cnt50ms = 0; cnt50ms = 0;
KeyScan(); KeyScan();
} }
if(KeyChangeFlag) // if key status changed if (KeyChangeFlag) // if key status changed
{ {
KeyChangeFlag = 0; KeyChangeFlag = 0;
SendKeyStatus(); SendKeyStatus();
@ -363,9 +360,9 @@ uint8_t KeyCount(uint16_t dat)
uint8_t i; uint8_t i;
i = 0; i = 0;
while(dat) while (dat)
{ {
if(dat & 0x8000) i++; if (dat & 0x8000) i++;
dat <<= 1; dat <<= 1;
} }
return i; return i;
@ -378,7 +375,7 @@ void SendKeyStatus(void)
if(KeyCode) // if key pressed if(KeyCode) // if key pressed
{ {
// 4*4 key matrix，max 3 keys pressed simultaneously // allow 3 keys pressed simultaneously
if(KeyCount(KeyCode) > 3) if(KeyCount(KeyCode) > 3)
{ {
return; // too many keys return; // too many keys
@ -386,11 +383,11 @@ void SendKeyStatus(void)
else else
{ {
n = 2; n = 2;
for(i=0;i<16;i++) for (i = 0; i < 16; i++)
{ {
if(i == 1) if (i == 1)
{ {
if(KeyCode & (1<<i)) // left Ctrl if (KeyCode & (1 << i)) // left Ctrl
{ {
HidInput[0] |= 1; HidInput[0] |= 1;
} }
@ -399,20 +396,20 @@ void SendKeyStatus(void)
HidInput[0] &= ~1; HidInput[0] &= ~1;
} }
} }
else if(i == 2) else if (i == 2)
{ {
if(KeyCode & (1<<i)) // left alt if (KeyCode & (1 << i)) // left alt
{ {
HidInput[0] |= 1<<2; HidInput[0] |= 1 << 2;
} }
else else
{ {
HidInput[0] &= ~(1<<2); HidInput[0] &= ~(1 << 2);
} }
} }
else else
{ {
if(KeyCode & (1<<i)) if (KeyCode & (1 << i))
{ {
HidInput[n++] = KeyMap[i]; HidInput[n++] = KeyMap[i];
} }
@ -427,15 +424,15 @@ void SendKeyStatus(void)
} }
else // if no key pressed, return 0 else // if no key pressed, return 0
{ {
for( i = 0; i < 8; i++) for (i = 0; i < 8; i++)
{ {
HidInput[i]=0; HidInput[i] = 0;
} }
} }
// return 8 bytes data // return 8 bytes data
USB_WriteReg(INDEX, 1); USB_WriteReg(INDEX, 1);
for(i = 0; i < 8; i++) for (i = 0; i < 8; i++)
{ {
USB_WriteReg(FIFO1, HidInput[i]); USB_WriteReg(FIFO1, HidInput[i]);
} }
@ -462,20 +459,14 @@ P02 ---- K08 ---- K09 ---- K10 ---- K11 ----
P03 ---- K12 ---- K13 ---- K14 ---- K15 ---- P03 ---- K12 ---- K13 ---- K14 ---- K15 ----
| | | | | | | |
******************************************************/ ******************************************************/
void IO_KeyDelay(void)
{
uint8_t i;
i = 5;
while(--i);
}
void KeyScan(void) void KeyScan(void)
{ {
uint8_t temp; uint8_t temp;
KeyIO = 0x0F; KeyIO = 0x0F;
IO_KeyDelay(); SYS_DelayUs(1);
if((KeyIO & 0x0F) == 0x0F) // no key pressed if ((KeyIO & 0x0F) == 0x0F) // no key pressed
{ {
NewKeyCode = 0; NewKeyCode = 0;
} }
@ -483,34 +474,33 @@ void KeyScan(void)
{ {
// scan first line // scan first line
KeyIO = (uint8_t)~0x10; KeyIO = (uint8_t)~0x10;
IO_KeyDelay(); SYS_DelayUs(1);
// save 4 keys status // save 4 keys status
temp = KeyIO & 0x0F; temp = KeyIO & 0x0F;
// second line // second line
KeyIO = (uint8_t)~0x20; KeyIO = (uint8_t)~0x20;
IO_KeyDelay(); SYS_DelayUs(1);
// save 4 keys status
temp |= KeyIO << 4; temp |= KeyIO << 4;
// save current key status // save current key status
NewKeyCode = (~temp) & 0xFF; NewKeyCode = (~temp) & 0xFF;
// scan third line // third line
KeyIO = (uint8_t)~0x40; KeyIO = (uint8_t)~0x40;
IO_KeyDelay(); SYS_DelayUs(1);
temp = KeyIO & 0x0F; temp = KeyIO & 0x0F;
// scan 4th line // 4th line
KeyIO = (uint8_t)~0x80; KeyIO = (uint8_t)~0x80;
IO_KeyDelay(); SYS_DelayUs(1);
temp |= KeyIO << 4; temp |= KeyIO << 4;
// save all 16 keys' status in 2 bytes, 1 indicates key pressed // save all 16 keys' status in 2 bytes, 1 indicates key pressed
NewKeyCode |= (((uint16_t)~temp)<<8); NewKeyCode |= (((uint16_t)~temp) << 8);
} }
if(NewKeyCode != OldKeyCode) if (NewKeyCode != OldKeyCode)
{ {
KeyHoldTime = 0; KeyHoldTime = 0;
OldKeyCode = NewKeyCode; OldKeyCode = NewKeyCode;
@ -519,11 +509,11 @@ void KeyScan(void)
else else
{ {
KeyHoldTime++; KeyHoldTime++;
if(KeyHoldTime >= 1) if (KeyHoldTime >= 1)
{ {
KeyHoldTime = 1; KeyHoldTime = 1;
KeyCode = OldKeyCode; KeyCode = OldKeyCode;
if(KeyChangeTemp) if (KeyChangeTemp)
{ {
KeyChangeTemp = 0; KeyChangeTemp = 0;
KeyChangeFlag = 1; // Set send flag KeyChangeFlag = 1; // Set send flag