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This commit is contained in:
Allen Hill
2023-08-17 18:06:02 -04:00
parent 241b7cf50a
commit e8d7f5b297
7 changed files with 146 additions and 279 deletions
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com232.c
+8 -10
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@@ -32,7 +32,6 @@
byte RS232_RxCharBuffer[25], RS232_RxCharBegin, RS232_RxCharEnd;
byte readkey;
//------------------------------------------------------------------------------
void RS232_Init(void)
{
// // init LED
@@ -46,19 +45,19 @@ void RS232_Init(void)
USART0.CTRLC = USART_CMODE_ASYNCHRONOUS_gc | USART_PMODE_DISABLED_gc | USART_CHSIZE_8BIT_gc | USART_SBMODE_1BIT_gc; // Async UART with 8N1 config
USART0.BAUD = 256; // 250k baud rate (64*F_CPU/(16*250k)) for F_CPU = 16MHz
}
//------------------------------------------------------------------------------
ISR(USART0_RXC_vect)
{
RS232_RxCharBuffer[RS232_RxCharEnd] = USART0_RXDATAL; // Store received character to the End of Buffer
RS232_RxCharEnd++;
}
//------------------------------------------------------------------------------
void RS232_SendByte(byte Data)
{
loop_until_bit_is_set(USART0_STATUS, USART_DREIF_bp); // wait for UART to become available
USART0_TXDATAL = Data; // send character
}
//------------------------------------------------------------------------------
void RS232_Print_P(const char * str_addr)
{
register byte c;
@@ -69,7 +68,7 @@ void RS232_Print_P(const char * str_addr)
RS232_SendByte(c);
}
}
//------------------------------------------------------------------------------
void RS232_Print(const char *pBuf)
{
register byte c;
@@ -80,7 +79,7 @@ void RS232_Print(const char *pBuf)
RS232_SendByte(c);
}
}
//------------------------------------------------------------------------------
void RS232_PrintHex4(byte Data)
{
byte Character = Data & 0x0f;
@@ -89,13 +88,13 @@ void RS232_PrintHex4(byte Data)
Character += 'A' - '0' - 10;
RS232_SendByte(Character);
}
//------------------------------------------------------------------------------
void RS232_PrintHex8(byte Data)
{
RS232_PrintHex4(Data >> 4);
RS232_PrintHex4(Data);
}
//------------------------------------------------------------------------------
void RS232_PrintDec(byte Data)
{
if (Data>99) {
@@ -114,7 +113,7 @@ void RS232_PrintDec(byte Data)
RS232_SendByte('0'+v1);
RS232_SendByte(c);
}
//------------------------------------------------------------------------------
void RS232_PrintDec2(byte Data)
{
if (Data<10) RS232_SendByte('0');
@@ -140,4 +139,3 @@ char* itoa(int i, char b[]){
}while(i);
return b;
}
//------------------------------------------------------------------------------