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9c91ce8d24
This is ANGIE's firmware and bitstream code. The 'Embeded C' code is based on the openULINK project. The hdl bitstream source code is for the spartan-6 FPGA included in ANGIE. Since ANGIE has a different microcontroller (EZ-USB FX2) than openULINK (EZ-USB AN2131), the registers file (reg_ezusb.h) has been changed completely, so are the descriptors, interruptions and the endpoints configuration. Change-Id: I70590c7c58bac6f1939c5ffba57e87d86850664d Signed-off-by: Ahmed BOUDJELIDA <aboudjelida@nanoxplore.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7701 Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/**
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* This code was taken from the fx2lib project from this link:
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* https://github.com/djmuhlestein/fx2lib
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*
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* Copyright (C) 2009 Ubixum, Inc.
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**/
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/** \file serial.h
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* defines functions to print to a serial console with SIO0
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**/
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#include "fx2macros.h"
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#include <stdint.h>
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/**
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* This function inits sio0 to use T2CON (timer 2)
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* See TRM 14.3.4.1 (Table 14-16)
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* Certain baud rates have too high an error rate to work. All baud rates are .16%
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* except:
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*
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* 12MHZ 24MHZ
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* \li 57600 -6.99%
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* \li 38400 -2.34% -2.34%
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* \li 19200 -2.34%
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*
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* Possible Baud rates:
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* \li 2400
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* \li 4800
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* \li 9600
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* \li 19200
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* \li 28800
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* \li 38400
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* \li 57600
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*
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* Any of these rates should work except 57600 at 12mhz. -2.34% is pushing
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* most hardware specs for working. All rates at 48mhz work at .16%
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**/
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void sio0_init(uint32_t baud_rate) __critical; /* baud_rate max should be 57600 since int=2 bytes */
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/**
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* putchar('\\n') or putchar('\\r') both transmit \\r\\n
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* Just use one or the other. (This makes terminal echo easy)
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**/
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int putchar(char c);
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int getchar(void);
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