flywithu/Toyota-AVC-LAN
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Update serial registers

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This commit is contained in:
Allen Hill 2023-08-06 20:48:45 -04:00
parent feccda9e69
commit 66633db24e
3 changed files with 15 additions and 21 deletions
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4
avclandrv.h
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@ -33,8 +33,8 @@
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
#include "GlobalDef.h" #include "GlobalDef.h"
#define STOPEvent cbi(RTC.PITINTCTRL, RTC_PI_bp); cbi(UCSR0B, RXCIE0); #define STOPEvent cbi(RTC.PITINTCTRL, RTC_PI_bp); cbi(USART0.CTRLA, USART_RXCIE_bp);
#define STARTEvent sbi(RTC.PITINTCTRL, RTC_PI_bp); sbi(UCSR0B, RXCIE0); #define STARTEvent sbi(RTC.PITINTCTRL, RTC_PI_bp); sbi(USART0.CTRLA, USART_RXCIE_bp);
#define CHECK_AVC_LINE if (INPUT_IS_SET) AVCLan_Read_Message(); #define CHECK_AVC_LINE if (INPUT_IS_SET) AVCLan_Read_Message();

28
com232.c
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@ -35,34 +35,28 @@ byte readkey;
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
void RS232_Init(void) void RS232_Init(void)
{ {
// init LED // // init LED
sbi(DDRB, 5); // sbi(DDRB, 5);
cbi(PORTB, 5); // cbi(PORTB, 5);
RS232_RxCharBegin = RS232_RxCharEnd = 0; RS232_RxCharBegin = RS232_RxCharEnd = 0;
UCSR0A = 0; USART0.CTRLA = USART_RXCIE_bm; // Enable receive interrupts
UCSR0B = ((1<<RXCIE0) | (1<<RXEN0) | (1<<TXEN0)); // enable RxD/TxD and interrupts USART0.CTRLB = USART_RXEN_bm | USART_TXEN_bm | USART_RXMODE_NORMAL_gc; // Enable Rx/Tx and set receive mode normal
UCSR0C = ((1<<UCSZ01)|(1<<UCSZ00)); // 8N1 USART0.CTRLC = USART_CMODE_ASYNCHRONOUS_gc | USART_PMODE_DISABLED_gc | USART_CHSIZE_8BIT_gc | USART_SBMODE_1BIT_gc; // Async UART with 8N1 config
UBRR0L = 8; // Baud Rate 9600 (3 for 250000) USART0.BAUD = 256; // 250k baud rate (64*F_CPU/(16*250k)) for F_CPU = 16MHz
// 103 => 9600
// 51 => 19200
// 25 => 38400
// 8 => 115200
// 3 => 250000
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
ISR(USART_RX_vect) ISR(USART0_RXC_vect)
{ {
RS232_RxCharBuffer[RS232_RxCharEnd] = UDR0; // Store received character to the End of Buffer RS232_RxCharBuffer[RS232_RxCharEnd] = USART0_RXDATAL; // Store received character to the End of Buffer
RS232_RxCharEnd++; RS232_RxCharEnd++;
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
void RS232_SendByte(byte Data) void RS232_SendByte(byte Data)
{ {
while ((UCSR0A & _BV(UDRE0)) != _BV(UDRE0)); // wait for UART to become available loop_until_bit_is_set(USART0_STATUS, USART_DREIF_bp); // wait for UART to become available
UDR0 = Data; // send character USART0_TXDATAL = Data; // send character
} }
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
void RS232_Print_P(const char * str_addr) void RS232_Print_P(const char * str_addr)

4
sniffer.c
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@ -95,12 +95,12 @@ int main()
// Key handler // Key handler
if (RS232_RxCharEnd) { if (RS232_RxCharEnd) {
cbi(UCSR0B, RXCIE0); // disable RX complete interrupt cbi(USART0.CTRLA, USART_RXCIE_bp); // disable RX complete interrupt
readkey = RS232_RxCharBuffer[RS232_RxCharBegin];// read begin of received Buffer readkey = RS232_RxCharBuffer[RS232_RxCharBegin];// read begin of received Buffer
RS232_RxCharBegin++; RS232_RxCharBegin++;
if (RS232_RxCharBegin == RS232_RxCharEnd) // if Buffer is empty if (RS232_RxCharBegin == RS232_RxCharEnd) // if Buffer is empty
RS232_RxCharBegin = RS232_RxCharEnd = 0; // do reset Buffer RS232_RxCharBegin = RS232_RxCharEnd = 0; // do reset Buffer
sbi(UCSR0B, RXCIE0); // enable RX complete interrupt sbi(USART0.CTRLA, USART_RXCIE_bp); // enable RX complete interrupt
switch (readkey) { switch (readkey) {
case 'S': showLog = 0; case 'S': showLog = 0;
RS232_Print_P(PSTR("READ SEQUENCE > \n")); RS232_Print_P(PSTR("READ SEQUENCE > \n"));