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Adding missing debug header.

bringup
Jacob Alexander 9 years ago
parent
a459263b5f
commit
e708a42d80
2 changed files with 282 additions and 0 deletions
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  1. 214
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      Bootloader/debug.c
  2. 68
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      Bootloader/debug.h

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Bootloader/debug.c View File

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/* Copyright (C) 2015 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

// ----- Includes -----

// Local Includes
#include "mchck.h"



// ----- Defines -----

// UART Configuration
#if defined(_mk20dx256vlh7_) // UART2 Debug
#define UART_BDH UART2_BDH
#define UART_BDL UART2_BDL
#define UART_C1 UART2_C1
#define UART_C2 UART2_C2
#define UART_C3 UART2_C3
#define UART_C4 UART2_C4
#define UART_CFIFO UART2_CFIFO
#define UART_D UART2_D
#define UART_PFIFO UART2_PFIFO
#define UART_RCFIFO UART2_RCFIFO
#define UART_RWFIFO UART2_RWFIFO
#define UART_S1 UART2_S1
#define UART_S2 UART2_S2
#define UART_SFIFO UART2_SFIFO
#define UART_TWFIFO UART2_TWFIFO

#define SIM_SCGC4_UART SIM_SCGC4_UART2
#define IRQ_UART_STATUS IRQ_UART2_STATUS

#else
#error "Bootloader UART Debug unsupported"
#endif



// ----- Functions -----

#if defined(_mk20dx256vlh7_)

void uart_serial_setup()
{
// Setup the the UART interface for keyboard data input
SIM_SCGC4 |= SIM_SCGC4_UART; // Disable clock gating

// Kiibohd-dfu
#if defined(_mk20dx256vlh7_)
// Pin Setup for UART2
PORTD_PCR3 = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); // TX Pin
#endif


#if defined(_mk20dx256vlh7_) // UART2 Debug
// Setup baud rate - 115200 Baud
// Uses Bus Clock
// 36 MHz / ( 16 * Baud ) = BDH/L
// Baud: 115200 -> 36 MHz / ( 16 * 115200 ) = 19.53125
// Thus baud setting = 19
// NOTE: If finer baud adjustment is needed see UARTx_C4 -> BRFA in the datasheet
uint16_t baud = 19; // Max setting of 8191
UART_BDH = (uint8_t)(baud >> 8);
UART_BDL = (uint8_t)baud;
UART_C4 = 0x11;

#endif

// 8 bit, No Parity, Idle Character bit after stop
UART_C1 = UART_C1_ILT;

// TX FIFO Enabled, TX FIFO Size 1 (Max 8 datawords)
// TX/RX FIFO Size:
// 0x0 - 1 dataword
// 0x1 - 4 dataword
// 0x2 - 8 dataword
UART_PFIFO = UART_PFIFO_TXFE;

// TX Enabled, RX Enabled, RX Interrupt Enabled, Generate idles
// UART_C2_TE UART_C2_RE UART_C2_RIE UART_C2_ILIE
UART_C2 = UART_C2_TE | UART_C2_ILIE;
}


int uart_serial_write( const void *buffer, uint32_t size )
{
const uint8_t *data = (const uint8_t *)buffer;
uint32_t position = 0;

// While buffer is not empty and transmit buffer is
while ( position < size )
{
while ( !( UART_SFIFO & UART_SFIFO_TXEMPT ) ); // Wait till there is room to send
UART_D = data[position++];
}

return 0;
}


int Output_putstr( char* str )
{
uint32_t count = 0;

// Count characters until NULL character, then send the amount counted
while ( str[count] != '\0' )
count++;

return uart_serial_write( str, count );
}


uint16_t lenStr( char* in )
{
// Iterator
char *pos;

// Loop until null is found
for ( pos = in; *pos; pos++ );

// Return the difference between the pointers of in and pos (which is the string length)
return (pos - in);
}


void revsStr( char* in )
{
// Iterators
int i, j;

// Temp storage
char c;

// Loop through the string, and reverse the order of the characters
for ( i = 0, j = lenStr( in ) - 1; i < j; i++, j-- )
{
c = in[i];
in[i] = in[j];
in[j] = c;
}
}


void hexToStr_op( uint32_t in, char* out, uint8_t op )
{
// Position container
uint32_t pos = 0;

// Evaluate through digits as hex
do
{
uint32_t cur = in % 16;
out[pos++] = cur + (( cur < 10 ) ? '0' : 'A' - 10);
}
while ( (in /= 16) > 0 );

// Output formatting options
switch ( op )
{
case 1: // Add 0x
out[pos++] = 'x';
out[pos++] = '0';
break;
case 2: // 8-bit padding
case 4: // 16-bit padding
case 8: // 32-bit padding
while ( pos < op )
out[pos++] = '0';
break;
}

// Append null
out[pos] = '\0';

// Reverse the string to the correct order
revsStr( out );
}


void printHex_op( uint32_t in, uint8_t op )
{
// With an op of 1, the max number of characters is 6 + 1 for null
// e.g. "0xFFFF\0"
// op 2 and 4 require fewer characters (2+1 and 4+1 respectively)
char tmpStr[7];

// Convert number
hexToStr_op( in, tmpStr, op );

// Print number
Output_putstr( tmpStr );
}

#endif


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Bootloader/debug.h View File

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/* Copyright (C) 2015 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/

#ifndef debug_h__
#define debug_h__

// ----- Includes -----

// Compiler Includes

// Project Includes


// ----- Defines -----

#define NL "\r\n"
//#define FLASH_DEBUG // XXX: Use when there are USB flashing issues



// ----- Macros -----

#define print(str) Output_putstr(str)
#define printNL(str) Output_putstr(str NL)



// ----- Functions -----

#if defined(_mk20dx256vlh7_)
int Output_putstr( char* str );

int uart_serial_write( const void *buffer, uint32_t size );

void uart_serial_setup();

// Convenience
#define printHex(hex) printHex_op(hex, 1)
void printHex_op( uint32_t in, uint8_t op );

#else
#define Output_putstr(str)
#define uart_serial_write(buf,size)
#define uart_serial_setup()
#define printHex(hex)
#define printHex_op(in,op)
#endif

#endif