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UART0 on Teensy 3.0 now functional

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This commit is contained in:
Jacob Alexander 2013-02-01 15:10:58 -05:00
parent 640c0f0686
commit d5c4a0a9fa
2 changed files with 24 additions and 21 deletions
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2
Lib/mk20dx128.h
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@ -1087,7 +1087,7 @@ extern "C" {
#define UART_S2_RXINV (uint8_t)0x10 // RX Line Inversion Enable
#define UART_S2_MSBF (uint8_t)0x20 // MSBF Format Enabled
#define UART0_C3 *(volatile uint8_t *)0x4006A006 // UART Control Register 3
#define UART_S2_TXINV (uint8_t)0x10 // TX Line Inversion Enable
#define UART_C3_TXINV (uint8_t)0x10 // TX Line Inversion Enable
#define UART0_D *(volatile uint8_t *)0x4006A007 // UART Data Register
#define UART0_MA1 *(volatile uint8_t *)0x4006A008 // UART Match Address Registers 1
#define UART0_MA2 *(volatile uint8_t *)0x4006A009 // UART Match Address Registers 2

43
Scan/MBC-55X/scan_loop.c
View File

@ -71,28 +71,24 @@ void uart0_status_isr(void)
{
cli(); // Disable Interrupts
// Read part of the scan code (3 8bit chunks) from USART
#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
uint8_t tmp = UDR1;
#elif defined(_mk20dx128_) // ARM
// Exit out if nothing to do
/*
if ( !(UART0_S1 & UART_S1_RDRF ) )
{
sei();
return;
}
*/
// Variable for UART data read
uint8_t tmp = 0x00;
// Only doing single byte FIFO here
uint8_t tmp = UART0_D;
print("YAYA");
#if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
tmp = UDR1;
#elif defined(_mk20dx128_) // ARM
// UART0_S1 must be read for the interrupt to be cleared
if ( UART0_S1 & UART_S1_RDRF )
{
// Only doing single byte FIFO here
tmp = UART0_D;
}
#endif
// Debug
char tmpStr[6];
hexToStr( tmp, tmpStr );
dPrintStrsNL( tmpStr, " " ); // Debug
dPrintStrs( tmpStr, " " ); // Debug
// TODO
@ -148,7 +144,10 @@ inline void scan_setup()
UART0_BDL = (uint8_t)baud;
// 8 bit, Even Parity, Idle Character bit after stop
UART0_C1 = ~UART_C1_M | ~UART_C1_PE | UART_C1_PT | UART_C1_ILT;
// NOTE: For 8 bit with Parity you must enable 9 bit transmission (pg. 1065)
// You only need to use UART0_D for 8 bit reading/writing though
// UART_C1_M UART_C1_PE UART_C1_PT UART_C1_ILT
UART0_C1 = UART_C1_M | UART_C1_PE | UART_C1_ILT;
// Number of bytes in FIFO before TX Interrupt
UART0_TWFIFO = 1;
@ -161,15 +160,18 @@ inline void scan_setup()
// 0x0 - 1 dataword
// 0x1 - 4 dataword
// 0x2 - 8 dataword
UART0_PFIFO = ~UART_PFIFO_TXFE | /*TXFIFOSIZE*/ (0x0 << 4) | ~UART_PFIFO_RXFE | /*RXFIFOSIZE*/ (0x0);
//UART0_PFIFO = UART_PFIFO_TXFE | /*TXFIFOSIZE*/ (0x0 << 4) | UART_PFIFO_RXFE | /*RXFIFOSIZE*/ (0x0);
// Reciever Inversion Disabled, LSBF
UART0_S2 = ~UART_S2_RXINV | UART_S2_MSBF;
// UART_S2_RXINV UART_S2_MSBF
UART0_S2 |= 0x00;
// Transmit Inversion Disabled
UART0_C3 = ~UART_S2_TXINV;
// UART_C3_TXINV
UART0_C3 |= 0x00;
// TX Disabled, RX Enabled, RX Interrupt Enabled
// UART_C2_TE UART_C2_RE UART_C2_RIE
UART0_C2 = UART_C2_TE | UART_C2_RE | UART_C2_RIE;
// Add interrupt to the vector table
@ -185,6 +187,7 @@ inline void scan_setup()
inline uint8_t scan_loop()
{
UART0_D = 0x56;
_delay_ms( 10 );
UART0_D = 0x1C;
_delay_ms( 100 );
return 0;