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| /**
* \file
*
* \brief Monitor functions for SAM-BA on SAM D20
* Port of rom monitor functions from legacy sam-ba software
*
* Copyright (c) 2014 Atmel Corporation. All rights reserved.
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <string.h>
#include <intrinsics.h>
#include "samd20.h"
#include "sam_ba_monitor.h"
#include "usart_sam_ba.h"
#define min(a, b) (((a) < (b)) ? (a) : (b))
const char RomBOOT_Version[] = SAM_BA_VERSION;
/* Provides one common interface to handle both USART and USB-CDC */
typedef struct
{
/* send one byte of data */
int (*putc)(uint8_t value);
/* Get one byte */
uint8_t (*getc)(void);
/* Receive buffer not empty */
bool (*is_rx_ready)(void);
/* Send given data (polling) */
uint32_t (*putdata)(void const* data, uint32_t length);
/* Get data from comm. device */
uint32_t (*getdata)(void* data, uint32_t length);
/* Send given data (polling) using xmodem (if necessary) */
uint32_t (*putdata_xmd)(void const* data, uint32_t length);
/* Get data from comm. device using xmodem (if necessary) */
uint32_t (*getdata_xmd)(void* data, uint32_t length);
} t_monitor_if;
/* Initialize structures with function pointers from supported interfaces */
const t_monitor_if uart_if =
{ usart_putc, usart_getc, usart_is_rx_ready, usart_putdata, usart_getdata,
usart_putdata_xmd, usart_getdata_xmd };
/* The pointer to the interface object use by the monitor */
t_monitor_if * ptr_monitor_if;
/* b_terminal_mode mode (ascii) or hex mode */
volatile bool b_terminal_mode = false;
/**
* \brief This function initializes the SAM-BA monitor
*
* \param com_interface Communication interface to be used.
*/
void sam_ba_monitor_init(uint8_t com_interface)
{
/* Selects the requested interface for future actions */
if (com_interface == SAM_BA_INTERFACE_USART)
ptr_monitor_if = (t_monitor_if*) &uart_if;
}
/**
* \brief This function allows data rx by USART
*
* \param *data Data pointer
* \param length Length of the data
*/
void sam_ba_putdata_term(uint8_t* data, uint32_t length)
{
uint8_t temp, buf[12], *data_ascii;
uint32_t i, int_value;
if (b_terminal_mode)
{
if (length == 4)
int_value = *(uint32_t *) data;
else if (length == 2)
int_value = *(uint16_t *) data;
else
int_value = *(uint8_t *) data;
data_ascii = buf + 2;
data_ascii += length * 2 - 1;
for (i = 0; i < length * 2; i++)
{
temp = (uint8_t) (int_value & 0xf);
if (temp <= 0x9)
*data_ascii = temp | 0x30;
else
*data_ascii = temp + 0x37;
int_value >>= 4;
data_ascii--;
}
buf[0] = '0';
buf[1] = 'x';
buf[length * 2 + 2] = '\n';
buf[length * 2 + 3] = '\r';
ptr_monitor_if->putdata(buf, length * 2 + 4);
}
else
ptr_monitor_if->putdata(data, length);
return;
}
/**
* \brief Execute an applet from the specified address
*
* \param address Applet address
*/
// void call_applet(uint32_t address)
// {
// uint32_t *ptr_reset_vector;
// uint32_t app_start_add;
// /* Get the pointer to reset handler from application exception table */
// ptr_reset_vector = (uint32_t *)(address + 4);
// /* Get the application reset handler address */
// app_start_add = (*ptr_reset_vector);
// /* Disable global interrupts */
// cpu_irq_disable();
// /* Jump to the application */
// asm("bx %0"::"r"(app_start_add));
// }
void call_applet(uint32_t address)
{
uint32_t app_start_address;
/* Rebase the Stack Pointer */
__set_MSP(*(uint32_t *) address);
/* Rebase the vector table base address */
SCB->VTOR = ((uint32_t) address & SCB_VTOR_TBLOFF_Msk);
/* Load the Reset Handler address of the application */
app_start_address = *(uint32_t *)(address + 4);
/* Jump to application Reset Handler in the application */
asm("bx %0"::"r"(app_start_address));
}
uint32_t current_number;
uint32_t i, length;
uint8_t command, *ptr_data, *ptr, data[SIZEBUFMAX];
uint8_t j;
uint32_t u32tmp;
/**
* \brief This function starts the SAM-BA monitor.
*/
void sam_ba_monitor_run(void)
{
ptr_data = NULL;
command = 'z';
// Start waiting some cmd
while (1)
{
length = ptr_monitor_if->getdata(data, SIZEBUFMAX);
ptr = data;
for (i = 0; i < length; i++)
{
if (*ptr != 0xff)
{
if (*ptr == '#')
{
if (b_terminal_mode)
{
ptr_monitor_if->putdata("\n\r", 2);
}
if (command == 'S')
{
//Check if some data are remaining in the "data" buffer
if(length>i)
{
//Move current indexes to next avail data (currently ptr points to "#")
ptr++;
i++;
//We need to add first the remaining data of the current buffer already read from usb
//read a maximum of "current_number" bytes
u32tmp=min((length-i),current_number);
for(j=0;j<u32tmp;j++)
{
*ptr_data = *ptr;
ptr_data++;
ptr++;
i++;
}
}
//update i with the data read from the buffer
i--;
ptr--;
//Do we expect more data ?
if(j<current_number)
ptr_monitor_if->getdata_xmd(ptr_data, current_number-j);
__asm("nop");
}
else if (command == 'R')
{
ptr_monitor_if->putdata_xmd(ptr_data, current_number);
}
else if (command == 'O')
{
*ptr_data = (char) current_number;
}
else if (command == 'H')
{
*((uint16_t *) ptr_data) = (uint16_t) current_number;
}
else if (command == 'W')
{
*((int *) ptr_data) = current_number;
}
else if (command == 'o')
{
sam_ba_putdata_term(ptr_data, 1);
}
else if (command == 'h')
{
current_number = *((uint16_t *) ptr_data);
sam_ba_putdata_term((uint8_t*) ¤t_number, 2);
}
else if (command == 'w')
{
current_number = *((uint32_t *) ptr_data);
sam_ba_putdata_term((uint8_t*) ¤t_number, 4);
}
else if (command == 'G')
{
call_applet(current_number);
ptr_monitor_if->putc(0x6);
}
else if (command == 'T')
{
b_terminal_mode = 1;
ptr_monitor_if->putdata("\n\r", 2);
}
else if (command == 'N')
{
if (b_terminal_mode == 0)
{
ptr_monitor_if->putdata("\n\r", 2);
}
b_terminal_mode = 0;
}
else if (command == 'V')
{
ptr_monitor_if->putdata("v", 1);
ptr_monitor_if->putdata((uint8_t *) RomBOOT_Version,
strlen(RomBOOT_Version));
ptr_monitor_if->putdata(" ", 1);
ptr = (uint8_t*) &(__DATE__);
i = 0;
while (*ptr++ != '\0')
i++;
ptr_monitor_if->putdata((uint8_t *) &(__DATE__), i);
ptr_monitor_if->putdata(" ", 1);
i = 0;
ptr = (uint8_t*) &(__TIME__);
while (*ptr++ != '\0')
i++;
ptr_monitor_if->putdata((uint8_t *) &(__TIME__), i);
ptr_monitor_if->putdata("\n\r", 2);
}
command = 'z';
current_number = 0;
if (b_terminal_mode)
{
ptr_monitor_if->putdata(">", 1);
}
}
else
{
if (('0' <= *ptr) && (*ptr <= '9'))
{
current_number = (current_number << 4) | (*ptr - '0');
}
else if (('A' <= *ptr) && (*ptr <= 'F'))
{
current_number = (current_number << 4)
| (*ptr - 'A' + 0xa);
}
else if (('a' <= *ptr) && (*ptr <= 'f'))
{
current_number = (current_number << 4)
| (*ptr - 'a' + 0xa);
}
else if (*ptr == ',')
{
ptr_data = (uint8_t *) current_number;
current_number = 0;
}
else
{
command = *ptr;
current_number = 0;
}
}
ptr++;
}
}
}
} |
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Envoyé par cracked
Et si tu laisses les deux lignes qui envoient les données (en les mettant au bon endroit) et que tu remets tout le reste comme avant donc sur SERCOM3, là ça marche bien ? Je veux dire, putty reçoit le message ?
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