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ZTEX |
/*!
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ZTEX Firmware Kit for EZ-USB FX2 Microcontrollers
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Copyright (C) 2009-2014 ZTEX GmbH.
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see http://www.gnu.org/licenses/.
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!*/
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/*
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debug helper
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*/
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#ifndef[ZTEX_DEBUG_H]
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#define[ZTEX_DEBUG_H]
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#ifndef[DEBUG_STACK_SIZE]
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#error[Macro `DEBUG_STACK_SIZE' is not defined.]
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#endif
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#ifndef[DEBUG_MSG_SIZE]
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#error[Macro `DEBUG_MSG_SIZE' is not defined.]
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#endif
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#define[@CAPABILITY_DEBUG;]
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__xdata WORD debug_counter; // message number
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__xdata BYTE debug_stack_size; // stack size in messages
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__xdata BYTE debug_msg_size; // message size in bytes
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__xdata BYTE debug_stack[DEBUG_STACK_SIZE*DEBUG_MSG_SIZE]; // message stack
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__xdata BYTE* __xdata debug_stack_ptr; // pointer to the last message added
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__xdata BYTE debug_msg_buf[DEBUG_MSG_SIZE]; // user buffer: user should write data to this buffer
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__xdata BYTE* __xdata debug_read_addr;
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/* *********************************************************************
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***** debug_add_msg *************************************************
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********************************************************************* */
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// adds the current message (stored in debug_msg_buf) to the message stack
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void debug_add_msg () {
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BYTE i;
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i = debug_counter % DEBUG_STACK_SIZE;
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debug_stack_ptr = &debug_stack[i*DEBUG_MSG_SIZE];
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MEM_COPY1(debug_msg_buf,*debug_stack_ptr,DEBUG_MSG_SIZE);
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debug_counter += 1;
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}
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/* *********************************************************************
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***** debug_add_msg *************************************************
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********************************************************************* */
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// init the variables
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void debug_init () {
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debug_counter = 0; // message number
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debug_stack_size = DEBUG_STACK_SIZE;
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debug_msg_size = DEBUG_MSG_SIZE;
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debug_stack_ptr = debug_stack;
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}
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/* *********************************************************************
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***** EP0 vendor request 0x28 ***************************************
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********************************************************************* */
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// read the debug data
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BYTE debug_read_ep0 () {
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BYTE b;
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b = ep0_payload_transfer;
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if ( b != 0) {
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MEM_COPY1(*debug_read_addr,EP0BUF,b);
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}
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debug_read_addr += b;
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return b;
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}
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ADD_EP0_VENDOR_REQUEST((0x28,, // read the debug data
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debug_read_addr = (__xdata BYTE*)&debug_counter;
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EP0BCH = 0;
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EP0BCL = debug_read_ep0();
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,,
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EP0BCH = 0;
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EP0BCL = debug_read_ep0();
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));;
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#endif /*ZTEX_DEBUG_H*/
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