Вывод блока памяти данных » History » Version 7
krufter_multiclet, 07/19/2013 12:14 PM
| 1 | 1 | krufter_multiclet | h1. Вывод блока памяти данных |
|---|---|---|---|
| 2 | 1 | krufter_multiclet | |
| 3 | 7 | krufter_multiclet | +Для платы HW1-MCp04:+ |
| 4 | 2 | krufter_multiclet | |
| 5 | 2 | krufter_multiclet | <pre> |
| 6 | 2 | krufter_multiclet | .alias DM_START 0x00000000 ;start address DM for output by uart0 |
| 7 | 2 | krufter_multiclet | .alias BLOCK_SIZE 0x00000100 ;end address DM for output by uart0 |
| 8 | 2 | krufter_multiclet | .alias iterator1 2 |
| 9 | 2 | krufter_multiclet | .alias iterator2 3 |
| 10 | 2 | krufter_multiclet | .alias iterator3 4 |
| 11 | 2 | krufter_multiclet | .alias byte_DM 5 |
| 12 | 2 | krufter_multiclet | |
| 13 | 2 | krufter_multiclet | .alias UART_DATA UART0_DATA |
| 14 | 2 | krufter_multiclet | .alias UART_BDR UART0_BDR |
| 15 | 2 | krufter_multiclet | .alias UART_ST UART0_ST |
| 16 | 2 | krufter_multiclet | .alias UART_CR UART0_CR |
| 17 | 2 | krufter_multiclet | |
| 18 | 2 | krufter_multiclet | .alias UART_PORT_PIN 0x300 |
| 19 | 2 | krufter_multiclet | .alias UART_PORT_BPS GPIOB_BPS |
| 20 | 2 | krufter_multiclet | |
| 21 | 2 | krufter_multiclet | .text |
| 22 | 2 | krufter_multiclet | |
| 23 | 3 | krufter_multiclet | ;config uart |
| 24 | 2 | krufter_multiclet | initUART: |
| 25 | 2 | krufter_multiclet | jmp read_DM |
| 26 | 2 | krufter_multiclet | getl 0x00000300 |
| 27 | 2 | krufter_multiclet | wrl @1, GPIOD_BPS |
| 28 | 2 | krufter_multiclet | getl 0x00000104 |
| 29 | 2 | krufter_multiclet | wrl @1, UART_BDR |
| 30 | 2 | krufter_multiclet | getl 0x00000003 |
| 31 | 2 | krufter_multiclet | wrl @1, UART_CR |
| 32 | 2 | krufter_multiclet | setl #iterator1, 0x00000000 |
| 33 | 4 | krufter_multiclet | setl #iterator3, 4 ; send to uart fifo 32 bytes |
| 34 | 2 | krufter_multiclet | complete |
| 35 | 2 | krufter_multiclet | |
| 36 | 2 | krufter_multiclet | ; read DM for define address as double word (64 bits) |
| 37 | 2 | krufter_multiclet | read_DM: |
| 38 | 2 | krufter_multiclet | getl BLOCK_SIZE |
| 39 | 2 | krufter_multiclet | subl @1, #iterator1 |
| 40 | 2 | krufter_multiclet | je @1, stop2 |
| 41 | 2 | krufter_multiclet | jne @2, out_DM |
| 42 | 2 | krufter_multiclet | getl #iterator1 |
| 43 | 2 | krufter_multiclet | addl @1, DM_START |
| 44 | 2 | krufter_multiclet | rdq @1 |
| 45 | 2 | krufter_multiclet | setq #byte_DM, @1 |
| 46 | 2 | krufter_multiclet | addl @4, 0x00000008 |
| 47 | 2 | krufter_multiclet | setl #iterator1, @1 |
| 48 | 2 | krufter_multiclet | setl #iterator2, 0 |
| 49 | 2 | krufter_multiclet | getl #iterator3 |
| 50 | 2 | krufter_multiclet | subl @1, 1 |
| 51 | 2 | krufter_multiclet | setl #iterator3, @1 |
| 52 | 2 | krufter_multiclet | complete |
| 53 | 2 | krufter_multiclet | |
| 54 | 2 | krufter_multiclet | out_DM: |
| 55 | 2 | krufter_multiclet | getl #iterator2 |
| 56 | 2 | krufter_multiclet | getl 56 ; write to tx fifo 8 bytes |
| 57 | 2 | krufter_multiclet | subl @1, @2 |
| 58 | 2 | krufter_multiclet | je @1, full_FIFO |
| 59 | 2 | krufter_multiclet | jne @2, out_DM |
| 60 | 2 | krufter_multiclet | getq #byte_DM |
| 61 | 2 | krufter_multiclet | slrq @1, #iterator2 |
| 62 | 2 | krufter_multiclet | wrq @1, UART_DATA ; write to tx fifo only one byte |
| 63 | 2 | krufter_multiclet | getl 8 |
| 64 | 2 | krufter_multiclet | addl @1, #iterator2 |
| 65 | 2 | krufter_multiclet | setl #iterator2, @1 |
| 66 | 2 | krufter_multiclet | complete |
| 67 | 2 | krufter_multiclet | |
| 68 | 2 | krufter_multiclet | ; analyze iterator3 for sending all 4*8 bytes |
| 69 | 2 | krufter_multiclet | full_FIFO: |
| 70 | 2 | krufter_multiclet | getl #iterator3 |
| 71 | 2 | krufter_multiclet | getl 0xFFFFFFFF |
| 72 | 2 | krufter_multiclet | and @1, @2 |
| 73 | 2 | krufter_multiclet | je @1, buf_TXD |
| 74 | 2 | krufter_multiclet | jne @2, read_DM |
| 75 | 2 | krufter_multiclet | complete |
| 76 | 2 | krufter_multiclet | |
| 77 | 2 | krufter_multiclet | ; wait for fifo transmitter is empty |
| 78 | 2 | krufter_multiclet | buf_TXD: |
| 79 | 2 | krufter_multiclet | rdl UART_ST |
| 80 | 2 | krufter_multiclet | getl 0x00000004 |
| 81 | 2 | krufter_multiclet | and @1, @2 |
| 82 | 2 | krufter_multiclet | je @1, buf_TXD |
| 83 | 2 | krufter_multiclet | jne @2, read_DM |
| 84 | 2 | krufter_multiclet | setl #iterator3, 4 |
| 85 | 2 | krufter_multiclet | complete |
| 86 | 2 | krufter_multiclet | |
| 87 | 2 | krufter_multiclet | ; enable led 2,3 |
| 88 | 2 | krufter_multiclet | stop2: |
| 89 | 2 | krufter_multiclet | getl 0x1000 |
| 90 | 2 | krufter_multiclet | complete |
| 91 | 2 | krufter_multiclet | </pre> |
| 92 | 5 | krufter_multiclet | |
| 93 | 1 | krufter_multiclet | +Замечание:+ размер блока BLOCK_SIZE должен быть выравнен на 8. Скоро появится пример вывода по UART с точностью до байта. |
| 94 | 7 | krufter_multiclet | |
| 95 | 7 | krufter_multiclet | |
| 96 | 7 | krufter_multiclet | +Для платы LDM-MCp04:+ |
| 97 | 7 | krufter_multiclet | |
| 98 | 7 | krufter_multiclet | <pre> |
| 99 | 7 | krufter_multiclet | .alias DM_START 0x00000000 ;start address DM for output by uart0 |
| 100 | 7 | krufter_multiclet | .alias BLOCK_SIZE 0x00000100 ;end address DM for output by uart0 |
| 101 | 7 | krufter_multiclet | .alias iterator1 2 |
| 102 | 7 | krufter_multiclet | .alias iterator2 3 |
| 103 | 7 | krufter_multiclet | .alias iterator3 4 |
| 104 | 7 | krufter_multiclet | .alias byte_DM 5 |
| 105 | 7 | krufter_multiclet | |
| 106 | 7 | krufter_multiclet | .alias UART_DATA UART3_DATA |
| 107 | 7 | krufter_multiclet | .alias UART_BDR UART3_BDR |
| 108 | 7 | krufter_multiclet | .alias UART_ST UART3_ST |
| 109 | 7 | krufter_multiclet | .alias UART_CR UART3_CR |
| 110 | 7 | krufter_multiclet | |
| 111 | 7 | krufter_multiclet | .alias UART_PORT_PIN 0x300 |
| 112 | 7 | krufter_multiclet | .alias UART_PORT_BPS GPIOD_BPS |
| 113 | 7 | krufter_multiclet | |
| 114 | 7 | krufter_multiclet | .text |
| 115 | 7 | krufter_multiclet | |
| 116 | 7 | krufter_multiclet | ;config uart |
| 117 | 7 | krufter_multiclet | initUART: |
| 118 | 7 | krufter_multiclet | jmp read_DM |
| 119 | 7 | krufter_multiclet | getl 0x00000300 |
| 120 | 7 | krufter_multiclet | wrl @1, GPIOD_BPS |
| 121 | 7 | krufter_multiclet | getl 0x00000104 |
| 122 | 7 | krufter_multiclet | wrl @1, UART_BDR |
| 123 | 7 | krufter_multiclet | getl 0x00000003 |
| 124 | 7 | krufter_multiclet | wrl @1, UART_CR |
| 125 | 7 | krufter_multiclet | setl #iterator1, 0x00000000 |
| 126 | 7 | krufter_multiclet | setl #iterator3, 4 ; send to uart fifo 32 bytes |
| 127 | 7 | krufter_multiclet | complete |
| 128 | 7 | krufter_multiclet | |
| 129 | 7 | krufter_multiclet | ; read DM for define address as double word (64 bits) |
| 130 | 7 | krufter_multiclet | read_DM: |
| 131 | 7 | krufter_multiclet | getl BLOCK_SIZE |
| 132 | 7 | krufter_multiclet | subl @1, #iterator1 |
| 133 | 7 | krufter_multiclet | je @1, stop2 |
| 134 | 7 | krufter_multiclet | jne @2, out_DM |
| 135 | 7 | krufter_multiclet | getl #iterator1 |
| 136 | 7 | krufter_multiclet | addl @1, DM_START |
| 137 | 7 | krufter_multiclet | rdq @1 |
| 138 | 7 | krufter_multiclet | setq #byte_DM, @1 |
| 139 | 7 | krufter_multiclet | addl @4, 0x00000008 |
| 140 | 7 | krufter_multiclet | setl #iterator1, @1 |
| 141 | 7 | krufter_multiclet | setl #iterator2, 0 |
| 142 | 7 | krufter_multiclet | getl #iterator3 |
| 143 | 7 | krufter_multiclet | subl @1, 1 |
| 144 | 7 | krufter_multiclet | setl #iterator3, @1 |
| 145 | 7 | krufter_multiclet | complete |
| 146 | 7 | krufter_multiclet | |
| 147 | 7 | krufter_multiclet | out_DM: |
| 148 | 7 | krufter_multiclet | getl #iterator2 |
| 149 | 7 | krufter_multiclet | getl 56 ; write to tx fifo 8 bytes |
| 150 | 7 | krufter_multiclet | subl @1, @2 |
| 151 | 7 | krufter_multiclet | je @1, full_FIFO |
| 152 | 7 | krufter_multiclet | jne @2, out_DM |
| 153 | 7 | krufter_multiclet | getq #byte_DM |
| 154 | 7 | krufter_multiclet | slrq @1, #iterator2 |
| 155 | 7 | krufter_multiclet | wrq @1, UART_DATA ; write to tx fifo only one byte |
| 156 | 7 | krufter_multiclet | getl 8 |
| 157 | 7 | krufter_multiclet | addl @1, #iterator2 |
| 158 | 7 | krufter_multiclet | setl #iterator2, @1 |
| 159 | 7 | krufter_multiclet | complete |
| 160 | 7 | krufter_multiclet | |
| 161 | 7 | krufter_multiclet | ; analyze iterator3 for sending all 4*8 bytes |
| 162 | 7 | krufter_multiclet | full_FIFO: |
| 163 | 7 | krufter_multiclet | getl #iterator3 |
| 164 | 7 | krufter_multiclet | getl 0xFFFFFFFF |
| 165 | 7 | krufter_multiclet | and @1, @2 |
| 166 | 7 | krufter_multiclet | je @1, buf_TXD |
| 167 | 7 | krufter_multiclet | jne @2, read_DM |
| 168 | 7 | krufter_multiclet | complete |
| 169 | 7 | krufter_multiclet | |
| 170 | 7 | krufter_multiclet | ; wait for fifo transmitter is empty |
| 171 | 7 | krufter_multiclet | buf_TXD: |
| 172 | 7 | krufter_multiclet | rdl UART_ST |
| 173 | 7 | krufter_multiclet | getl 0x00000004 |
| 174 | 7 | krufter_multiclet | and @1, @2 |
| 175 | 7 | krufter_multiclet | je @1, buf_TXD |
| 176 | 7 | krufter_multiclet | jne @2, read_DM |
| 177 | 7 | krufter_multiclet | setl #iterator3, 4 |
| 178 | 7 | krufter_multiclet | complete |
| 179 | 7 | krufter_multiclet | |
| 180 | 7 | krufter_multiclet | ; enable led 2,3 |
| 181 | 7 | krufter_multiclet | stop2: |
| 182 | 7 | krufter_multiclet | getl 0x1000 |
| 183 | 7 | krufter_multiclet | complete |
| 184 | 7 | krufter_multiclet | </pre> |