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Partial implementation of xmodem protocol: function for transmission of xmodem packets and small testsuite for dumping the content of external flash memory via xmodem

pull/70/head
Silvano Seva 2022-03-11 19:28:45 +01:00
rodzic c0a5d0a26e
commit e56cf52f28
4 zmienionych plików z 210 dodań i 0 usunięć
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1
meson.build
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@ -31,6 +31,7 @@ openrtx_src = ['openrtx/src/core/state.c',
'openrtx/src/core/dsp.cpp', 'openrtx/src/core/dsp.cpp',
'openrtx/src/core/cps.c', 'openrtx/src/core/cps.c',
'openrtx/src/core/crc.c', 'openrtx/src/core/crc.c',
'openrtx/src/core/xmodem.c',
'openrtx/src/core/memory_profiling.cpp', 'openrtx/src/core/memory_profiling.cpp',
'openrtx/src/ui/ui.c', 'openrtx/src/ui/ui.c',
'openrtx/src/ui/ui_main.c', 'openrtx/src/ui/ui_main.c',

37
openrtx/include/core/xmodem.h 100644
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@ -0,0 +1,37 @@
/***************************************************************************
* Copyright (C) 2022 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN *
* Frederik Saraci IU2NRO *
* Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, see <http://www.gnu.org/licenses/> *
***************************************************************************/
#ifndef XMODEM_H
#define XMODEM_H
#include <stdint.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
void xmodem_sendPacket(const void *data, size_t size, uint8_t blockNum);
#ifdef __cplusplus
}
#endif
#endif /* XMODEM_H */

68
openrtx/src/core/xmodem.c 100644
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@ -0,0 +1,68 @@
/***************************************************************************
* Copyright (C) 2022 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN *
* Frederik Saraci IU2NRO *
* Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, see <http://www.gnu.org/licenses/> *
***************************************************************************/
#include <crc.h>
#include <xmodem.h>
#include <string.h>
#include <stdio.h>
#include <usb_vcom.h>
#define SOH (0x01) /* start of 128-byte data packet */
#define STX (0x02) /* start of 1024-byte data packet */
#define EOT (0x04) /* End Of Transmission */
#define ACK (0x06) /* ACKnowledge, receive OK */
#define NAK (0x15) /* Negative ACKnowledge, receiver ERROR, retry */
#define CAN (0x18) /* two CAN in succession will abort transfer */
#define CRC (0x43) /* 'C' == 0x43, request 16-bit CRC, use in place of first NAK for CRC mode */
#define ABT1 (0x41) /* 'A' == 0x41, assume try abort by user typing */
#define ABT2 (0x61) /* 'a' == 0x61, assume try abort by user typing */
void xmodem_sendPacket(const void *data, size_t size, uint8_t blockNum)
{
// Bad payload size, null block number or null data pointer: do not send
if(((size != 128) && (size != 1024)) || (blockNum == 0) || (data == NULL))
{
return;
}
uint8_t buf[3] = {SOH, 0x00, 0x00};
// Override header to STX for 1kB packets
if(size > 128)
{
buf[0] = STX;
}
// Sequence number
buf[1] = blockNum;
buf[2] = blockNum ^ 0xFF;
uint16_t crc = crc_ccitt(data, size);
// Send header, then data and finally CRC
vcom_writeBlock(buf, 3);
vcom_writeBlock(data, size);
buf[0] = crc >> 8;
buf[1] = crc & 0xFF;
vcom_writeBlock(buf, 2);
}

104
tests/platform/xmodem_flash_dump.c 100644
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@ -0,0 +1,104 @@
/***************************************************************************
* Copyright (C) 2022 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN, *
* Frederik Saraci IU2NRO, *
* Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, see <http://www.gnu.org/licenses/> *
***************************************************************************/
#include <stdio.h>
#include <string.h>
#include <xmodem.h>
#include <interfaces/platform.h>
#include <interfaces/delays.h>
#include "W25Qx.h"
#include "usb_vcom.h"
#define SOH (0x01) /* start of 128-byte data packet */
#define STX (0x02) /* start of 1024-byte data packet */
#define EOT (0x04) /* End Of Transmission */
#define ACK (0x06) /* ACKnowledge, receive OK */
#define NAK (0x15) /* Negative ACKnowledge, receiver ERROR, retry */
#define CAN (0x18) /* two CAN in succession will abort transfer */
#define CRC (0x43) /* 'C' == 0x43, request 16-bit CRC, use in place of first NAK for CRC mode */
#define ABT1 (0x41) /* 'A' == 0x41, assume try abort by user typing */
#define ABT2 (0x61) /* 'a' == 0x61, assume try abort by user typing */
static const size_t FLASH_SIZE = 16*1024*1024; /* 16MB */
uint8_t blockData[1024];
int main()
{
platform_init();
W25Qx_init();
W25Qx_wakeup();
uint8_t cmd = 0;
while(cmd != 'C')
{
platform_ledOn(GREEN);
sleepFor(0,50);
platform_ledOff(GREEN);
sleepFor(0,50);
vcom_readBlock(&cmd, 1);
}
uint8_t block = 1;
for(size_t addr = 0; addr < FLASH_SIZE; )
{
W25Qx_readData(addr, blockData, 1024);
bool ok = false;
do
{
xmodem_sendPacket(blockData, 1024, block);
cmd = 0;
while((cmd != ACK) && (cmd != NAK))
{
platform_ledOn(RED);
sleepFor(0,50);
platform_ledOff(RED);
sleepFor(0,50);
vcom_readBlock(&cmd, 1);
if(cmd == ACK) ok = true;
}
}
while(ok == false);
block++;
if(block == 255) block = 1;
addr += 1024;
}
cmd = EOT;
vcom_writeBlock(&cmd, 1);
while(cmd != ACK)
{
vcom_readBlock(&cmd, 1);
}
while(1)
{
platform_ledOn(GREEN);
sleepFor(1,0);
platform_ledOff(GREEN);
sleepFor(1,0);
}
return 0;
}