avr_jtag: src/jtag.c annotate

annotate src/jtag.c @ 10:cc106f278d7d

Get identify of components

author	Thinker K.F. Li <thinker@branda.to>
date	Tue, 24 Feb 2009 13:32:04 +0800
parents	61f27549de57
children	1ea479d26fce

rev	line source
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	1 #include <stdio.h>
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	2 #include <util/delay.h>
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	3 #include "jtag.h"
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	4 #include "avriotools.h"
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	5
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	6 /* It is supposed to work at 1Mbps */
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	7 #define CLK_DELAY() _delay_us(1)
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	8
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	9 void jtag_init(void) {
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	10 pin_mode(&JTAG_PORT, JTAG_TCK, PM_OUTPUT);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	11 pin_mode(&JTAG_PORT, JTAG_TMS, PM_OUTPUT);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	12 pin_mode(&JTAG_PORT, JTAG_TDI, PM_OUTPUT);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	13 pin_mode(&JTAG_PORT, JTAG_TDO, PM_INPUT);
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	14 pin_mode(&JTAG_PORT, JTAG_TRST, PM_OUTPUT);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	15 pin_lo(JTAG_PORT, JTAG_TCK);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	16 pin_lo(JTAG_PORT, JTAG_TMS);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	17 pin_lo(JTAG_PORT, JTAG_TDI);
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	18 pin_hi(JTAG_PORT, JTAG_TRST);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	19 }
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	20
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	21 #define TCK_LO() pin_lo(JTAG_PORT, JTAG_TCK)
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	22 #define TCK_HI() pin_hi(JTAG_PORT, JTAG_TCK)
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	23 #define SEND_BIT(pin, bit) \
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	24 do { \
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	25 if(bit) \
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	26 pin_hi(JTAG_PORT, pin); \
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	27 else \
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	28 pin_lo(JTAG_PORT, pin); \
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	29 CLK_DELAY(); \
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	30 TCK_HI(); \
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	31 CLK_DELAY(); \
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	32 TCK_LO(); \
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	33 } while(0)
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	34 #define GET_TDO() (JTAG_PIN & _BV(JTAG_TDO))
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	35 #define SEND_GET_BIT(pin, bit, out) \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	36 do { \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	37 if(bit) \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	38 pin_hi(JTAG_PORT, pin); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	39 else \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	40 pin_lo(JTAG_PORT, pin); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	41 CLK_DELAY(); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	42 TCK_HI(); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	43 CLK_DELAY(); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	44 out = GET_TDO(); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	45 TCK_LO(); \
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	46 } while(0)
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	47
7 61f27549de57 Support TRST. Thinker K.F. Li <thinker@branda.to> parents: 5 diff changeset	48 void jtag_trst(void) {
61f27549de57 Support TRST. Thinker K.F. Li <thinker@branda.to> parents: 5 diff changeset	49 pin_lo(JTAG_PORT, JTAG_TRST);
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	50 SEND_BIT(JTAG_TMS, 1);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	51 SEND_BIT(JTAG_TMS, 1);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	52 SEND_BIT(JTAG_TMS, 1);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	53 SEND_BIT(JTAG_TMS, 1);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	54 SEND_BIT(JTAG_TMS, 1);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	55 pin_hi(JTAG_PORT, JTAG_TRST);
7 61f27549de57 Support TRST. Thinker K.F. Li <thinker@branda.to> parents: 5 diff changeset	56 }
61f27549de57 Support TRST. Thinker K.F. Li <thinker@branda.to> parents: 5 diff changeset	57
5 eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	58 /*!
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	59 * Before shifting registers, TAP controller must move to last state before
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	60 * shift state. The state machine transite to shift state when shifting
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	61 * starts.
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	62 */
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	63 void jtag_tms(unsigned char *buf, int nbits) {
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	64 int i;
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	65 int nbytes, byte;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	66 int byteoff, bitoff;
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	67 int bit;
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	68
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	69 pin_hi(JTAG_PORT, JTAG_TDI);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	70
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	71 nbytes = nbits / 8;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	72 for(i = 0; i < nbytes; i++) {
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	73 byte = buf[i];
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	74
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	75 bit = byte & 0x01;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	76 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	77
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	78 bit = byte & 0x02;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	79 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	80
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	81 bit = byte & 0x04;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	82 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	83
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	84 bit = byte & 0x08;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	85 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	86
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	87 bit = byte & 0x10;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	88 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	89
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	90 bit = byte & 0x20;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	91 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	92
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	93 bit = byte & 0x40;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	94 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	95
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	96 bit = byte & 0x80;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	97 SEND_BIT(JTAG_TMS, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	98 }
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	99
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	100 byte = buf[i];
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	101 nbits %= 8;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	102 for(i = 0; i < nbits; i++) {
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	103 bit = byte & (1 << i);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	104 SEND_BIT(JTAG_TMS, bit);
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	105 }
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	106 }
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	107
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	108 void jtag_shift(unsigned char *buf, int nbits) {
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	109 int i;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	110 int nbits_1;
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	111 int nbytes, byte;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	112 int byteoff, bitoff;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	113 int bit, remain;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	114
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	115 if(nbits == 0)
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	116 return;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	117
5 eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	118 /* Transite to shift state.
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	119 * \sa jtag_tms()
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	120 */
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	121 pin_lo(JTAG_PORT, JTAG_TMS);
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	122
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	123 nbits_1 = nbits - 1;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	124 nbytes = nbits_1 / 8;
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	125 for(i = 0; i < nbytes; i++) {
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	126 byte = buf[i];
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	127
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	128 bit = byte & 0x01;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	129 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	130
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	131 bit = byte & 0x02;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	132 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	133
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	134 bit = byte & 0x04;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	135 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	136
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	137 bit = byte & 0x08;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	138 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	139
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	140 bit = byte & 0x10;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	141 SEND_BIT(JTAG_TDI, bit);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	142
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	143 bit = byte & 0x20;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	144 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	145
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	146 bit = byte & 0x40;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	147 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	148
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	149 bit = byte & 0x80;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	150 SEND_BIT(JTAG_TDI, bit);
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	151 }
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	152
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	153 remain = nbits_1 % 8;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	154 byte = buf[i];
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	155 for(i = 0; i < remain; i++) {
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	156 bit = byte & (1 << i);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	157 SEND_BIT(JTAG_TDI, bit);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	158 }
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	159
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	160 byte = buf[nbits / 8];
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	161 bit = byte & (1 << (nbits_1 % 8));
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	162
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	163 pin_hi(JTAG_PORT, JTAG_TMS);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	164 SEND_BIT(JTAG_TDI, bit);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	165 }
abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	166
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	167 void jtag_shift_inout(unsigned char ibuf, unsigned char obuf, int nbits) {
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	168 int i, j;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	169 int nbits_1;
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	170 int nbytes, byte, obyte;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	171 int tdo;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	172 int byteoff, bitoff;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	173 int bit, remain;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	174
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	175 if(nbits == 0)
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	176 return;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	177
5 eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	178 /* Transite to shift state.
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	179 * \sa jtag_tms()
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	180 */
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	181 pin_lo(JTAG_PORT, JTAG_TMS);
eb14cac68cbb Transite TAP controller to shift state. Thinker K.F. Li <thinker@branda.to> parents: 4 diff changeset	182
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	183 nbits_1 = nbits - 1;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	184 nbytes = nbits_1 / 8;
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	185 for(i = 0; i < nbytes; i++) {
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	186 byte = ibuf[i];
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	187 obyte = 0;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	188
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	189 bit = byte & 0x01;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	190 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	191 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	192 obyte \|= 0x01;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	193 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	194 obyte &= ~0x01;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	195
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	196 bit = byte & 0x02;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	197 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	198 tdo = GET_TDO();
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	199 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	200 obyte \|= 0x02;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	201 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	202 obyte &= ~0x02;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	203
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	204 bit = byte & 0x04;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	205 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	206 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	207 obyte \|= 0x04;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	208 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	209 obyte &= ~0x04;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	210
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	211 bit = byte & 0x08;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	212 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	213 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	214 obyte \|= 0x08;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	215 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	216 obyte &= ~0x08;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	217
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	218 bit = byte & 0x10;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	219 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	220 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	221 obyte \|= 0x10;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	222 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	223 obyte &= ~0x10;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	224
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	225 bit = byte & 0x20;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	226 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	227 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	228 obyte \|= 0x20;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	229 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	230 obyte &= ~0x20;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	231
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	232 bit = byte & 0x40;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	233 SEND_GET_BIT(JTAG_TDI, bit, tdo);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	234 if(tdo)
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	235 obyte \|= 0x40;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	236 else
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	237 obyte &= ~0x40;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	238
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	239 bit = byte & 0x80;
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	240 SEND_GET_BIT(JTAG_TDI, bit, tdo);
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	241 if(tdo)
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	242 obyte \|= 0x80;
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	243 else
4 6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	244 obyte &= ~0x80;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	245
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	246 obuf[i] = obyte;
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	247 }
6b1594fb668f Improve performance of jtag.c and test it with Python scripts. Thinker K.F. Li <thinker@branda.to> parents: 2 diff changeset	248
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	249 remain = nbits_1 % 8;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	250 byte = ibuf[i];
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	251 obyte = 0;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	252 for(j = 0; j < remain; j++) {
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	253 bit = byte & (1 << j);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	254 SEND_GET_BIT(JTAG_TDI, bit, tdo);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	255 if(tdo)
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	256 obyte \|= 1 << j;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	257 else
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	258 obyte &= ~(1 << j);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	259 }
10 cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	260 obuf[i] = obyte;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	261
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	262 byte = ibuf[nbits / 8];
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	263 bit = byte & (1 << (nbits_1 % 8));
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	264
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	265 pin_hi(JTAG_PORT, JTAG_TMS);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	266 SEND_GET_BIT(JTAG_TDI, bit, tdo);
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	267 if(tdo)
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	268 obuf[nbits / 8] \|= 1 << j;
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	269 else
cc106f278d7d Get identify of components Thinker K.F. Li <thinker@branda.to> parents: 7 diff changeset	270 obuf[nbits / 8] &= ~(1 << j);
2 abf221bf3ce4 AVR JTAG server. Thinker K.F. Li <thinker@branda.to> parents: diff changeset	271 }

Mercurial > avr_jtag

annotate src/jtag.c @ 10:cc106f278d7d