Откорректировал блок памяти RAM для возможной работы с двумя устройствами одновременно. Одно из них - внешний контроллер. Вторым будет блок сбора информации для обновления данных. Сейчас в блоке памяти нет взаимной блокировки для двух независимых процессов и, существует возможность записать в одну и ту же ячейку памяти в один и тот же момент времени разные значения. В нашем проекте поскольку дальше будет введено ограничение, которое обяжет писать служебные и критические (напрямую участвующие в алгоритмах работы преобразователем частоты) данные только в определенные заранее известные регистры, такое невозможно. Память на уровне использования программистом будет поделена две области. Ту, в которую можно писать и считать записанное значение и ту, из которой можно будет только считать значения. Со стороны устройства будут использованы для записи только те ячейки, которые процессор будет только читать. Со стороны процессора будут использованы для записи только те ячейки, которые блоки внутри устройства будут только читать.
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@ -23,7 +23,7 @@ applicable agreement for further details.
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(input)
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(rect 376 248 544 264)
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(text "INPUT" (rect 125 0 153 10)(font "Arial" (font_size 6)))
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(text "ClkRAM" (rect 5 0 46 12)(font "Arial" ))
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(text "WR" (rect 5 0 23 12)(font "Arial" ))
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(pt 168 8)
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(drawing
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||||
(line (pt 84 12)(pt 109 12))
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||||
@ -37,41 +37,9 @@ applicable agreement for further details.
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||||
)
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||||
(pin
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||||
(input)
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(rect 352 232 544 248)
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(text "INPUT" (rect 149 0 177 10)(font "Arial" (font_size 6)))
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(text "AddressRAM[7..0]" (rect 5 0 95 12)(font "Arial" ))
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(pt 192 8)
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||||
(drawing
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||||
(line (pt 108 12)(pt 133 12))
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(line (pt 108 4)(pt 133 4))
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||||
(line (pt 137 8)(pt 192 8))
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(line (pt 108 12)(pt 108 4))
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(line (pt 133 4)(pt 137 8))
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(line (pt 133 12)(pt 137 8))
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)
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(text "VCC" (rect 152 7 172 17)(font "Arial" (font_size 6)))
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)
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(pin
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(input)
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(rect 368 216 544 232)
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(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
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(text "DataRAM[15..0]" (rect 5 0 85 12)(font "Arial" ))
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(pt 176 8)
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(drawing
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(line (pt 92 12)(pt 117 12))
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(line (pt 92 4)(pt 117 4))
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||||
(line (pt 121 8)(pt 176 8))
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||||
(line (pt 92 12)(pt 92 4))
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(line (pt 117 4)(pt 121 8))
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(line (pt 117 12)(pt 121 8))
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)
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(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
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)
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(pin
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(input)
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(rect 376 144 544 160)
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(rect 376 216 544 232)
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(text "INPUT" (rect 125 0 153 10)(font "Arial" (font_size 6)))
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(text "Clk" (rect 5 0 22 12)(font "Arial" ))
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(text "Address[7..0]" (rect 5 0 72 12)(font "Arial" ))
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(pt 168 8)
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(drawing
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(line (pt 84 12)(pt 109 12))
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@ -87,7 +55,7 @@ applicable agreement for further details.
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(input)
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(rect 376 264 544 280)
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(text "INPUT" (rect 125 0 153 10)(font "Arial" (font_size 6)))
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(text "WR" (rect 5 0 24 12)(font "Arial" ))
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(text "Clk" (rect 5 0 22 12)(font "Arial" ))
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(pt 168 8)
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(drawing
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(line (pt 84 12)(pt 109 12))
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@ -99,6 +67,40 @@ applicable agreement for further details.
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)
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(text "VCC" (rect 128 7 148 17)(font "Arial" (font_size 6)))
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)
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(pin
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(input)
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(rect 376 144 544 160)
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(text "INPUT" (rect 125 0 153 10)(font "Arial" (font_size 6)))
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(text "Clk50MHh" (rect 5 0 56 12)(font "Arial" ))
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(pt 168 8)
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(drawing
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(line (pt 84 12)(pt 109 12))
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(line (pt 84 4)(pt 109 4))
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(line (pt 113 8)(pt 168 8))
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(line (pt 84 12)(pt 84 4))
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(line (pt 109 4)(pt 113 8))
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(line (pt 109 12)(pt 113 8))
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)
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(text "VCC" (rect 128 7 148 17)(font "Arial" (font_size 6)))
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)
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(pin
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(bidir)
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(rect 368 232 544 248)
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(text "BIDIR" (rect 151 0 175 10)(font "Arial" (font_size 6)))
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(text "Data[15..0]" (rect 5 0 61 12)(font "Arial" ))
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(pt 176 8)
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(drawing
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(line (pt 120 4)(pt 98 4))
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(line (pt 176 8)(pt 124 8))
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(line (pt 120 12)(pt 98 12))
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(line (pt 98 4)(pt 94 8))
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(line (pt 98 12)(pt 94 8))
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(line (pt 120 4)(pt 124 8))
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(line (pt 124 8)(pt 120 12))
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)
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(flipy)
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(text "VCC" (rect 152 7 172 17)(font "Arial" (font_size 6)))
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)
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(symbol
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(rect 632 104 784 216)
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(text "AlteraPLL" (rect 5 0 52 12)(font "Arial" ))
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@ -143,9 +145,9 @@ applicable agreement for further details.
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)
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)
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(symbol
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(rect 816 176 1040 320)
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(rect 848 160 1048 304)
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(text "RAM" (rect 5 0 28 12)(font "Arial" ))
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(text "inst4" (rect 8 128 31 140)(font "Arial" ))
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(text "inst1" (rect 24 128 47 140)(font "Arial" ))
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(port
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(pt 0 32)
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(input)
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@ -154,49 +156,63 @@ applicable agreement for further details.
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(line (pt 0 32)(pt 16 32))
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)
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(port
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(pt 224 48)
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(pt 0 64)
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(input)
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(text "data[15..0]" (rect 0 0 53 12)(font "Arial" ))
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(text "data[15..0]" (rect 146 40 199 52)(font "Arial" ))
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(line (pt 208 48)(pt 224 48)(line_width 3))
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)
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(port
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(pt 224 64)
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(input)
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(text "address[7..0]" (rect 0 0 64 12)(font "Arial" ))
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(text "address[7..0]" (rect 135 56 199 68)(font "Arial" ))
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(line (pt 208 64)(pt 224 64)(line_width 3))
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)
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(port
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(pt 0 80)
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(input)
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(text "clkMCU" (rect 0 0 38 12)(font "Arial" ))
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(text "clkMCU" (rect 21 75 59 87)(font "Arial" ))
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(line (pt 0 80)(pt 16 80))
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(text "address0[7..0]" (rect 0 0 70 12)(font "Arial" ))
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(text "address0[7..0]" (rect 24 56 94 68)(font "Arial" ))
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(line (pt 0 64)(pt 16 64)(line_width 3))
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)
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(port
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(pt 0 96)
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(input)
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(text "wr" (rect 0 0 10 12)(font "Arial" ))
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(text "wr" (rect 21 91 31 103)(font "Arial" ))
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(text "wr0" (rect 0 0 16 12)(font "Arial" ))
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(text "wr0" (rect 24 88 40 100)(font "Arial" ))
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(line (pt 0 96)(pt 16 96))
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)
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(port
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(pt 0 48)
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(bidir)
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(text "dataMCU[15..0]" (rect 0 0 77 12)(font "Arial" ))
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(text "dataMCU[15..0]" (rect 24 40 101 52)(font "Arial" ))
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(line (pt 16 48)(pt 0 48)(line_width 3))
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(pt 0 112)
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(input)
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(text "clk0" (rect 0 0 20 12)(font "Arial" ))
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(text "clk0" (rect 24 104 44 116)(font "Arial" ))
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(line (pt 0 112)(pt 16 112))
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)
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(port
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(pt 0 64)
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(pt 200 64)
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(input)
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(text "address1[7..0]" (rect 0 0 70 12)(font "Arial" ))
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(text "address1[7..0]" (rect 120 56 190 68)(font "Arial" ))
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(line (pt 184 64)(pt 200 64)(line_width 3))
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)
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(port
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(pt 200 96)
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(input)
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(text "wr1" (rect 0 0 16 12)(font "Arial" ))
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(text "wr1" (rect 160 88 176 100)(font "Arial" ))
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(line (pt 184 96)(pt 200 96))
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)
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(port
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(pt 200 112)
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(input)
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(text "clk1" (rect 0 0 20 12)(font "Arial" ))
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(text "clk1" (rect 160 104 180 116)(font "Arial" ))
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(line (pt 184 112)(pt 200 112))
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)
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(port
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(pt 0 80)
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(bidir)
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(text "addressMCU[7..0]" (rect 0 0 89 12)(font "Arial" ))
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(text "addressMCU[7..0]" (rect 24 56 113 68)(font "Arial" ))
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(line (pt 16 64)(pt 0 64)(line_width 3))
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(text "data0[15..0]" (rect 0 0 59 12)(font "Arial" ))
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(text "data0[15..0]" (rect 24 72 83 84)(font "Arial" ))
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(line (pt 16 80)(pt 0 80)(line_width 3))
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)
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(port
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(pt 200 80)
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(bidir)
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(text "data1[15..0]" (rect 0 0 59 12)(font "Arial" ))
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(text "data1[15..0]" (rect 128 72 187 84)(font "Arial" ))
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(line (pt 200 80)(pt 184 80)(line_width 3))
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)
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(drawing
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(rectangle (rect 16 16 208 128))
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(rectangle (rect 16 16 184 128))
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)
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)
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(connector
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@ -213,50 +229,6 @@ applicable agreement for further details.
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(pt 592 624)
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(bus)
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)
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(connector
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(pt 544 224)
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(pt 592 224)
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(bus)
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)
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(connector
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(pt 544 240)
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(pt 576 240)
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(bus)
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)
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(connector
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(pt 544 256)
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(pt 560 256)
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)
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(connector
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(pt 560 256)
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(pt 816 256)
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)
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(connector
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(pt 544 272)
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(pt 816 272)
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)
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(connector
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(pt 592 224)
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(pt 816 224)
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(bus)
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)
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(connector
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(pt 576 240)
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(pt 816 240)
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(bus)
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)
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(connector
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(pt 816 208)
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(pt 800 208)
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)
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(connector
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(pt 800 136)
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||||
(pt 784 136)
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)
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(connector
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(pt 800 208)
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(pt 800 136)
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)
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(connector
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(pt 608 152)
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||||
(pt 608 624)
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@ -269,7 +241,51 @@ applicable agreement for further details.
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(pt 608 152)
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(pt 632 152)
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)
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(junction (pt 560 256))
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(junction (pt 576 240))
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(junction (pt 592 224))
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(connector
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(pt 784 136)
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||||
(pt 832 136)
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)
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||||
(connector
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||||
(pt 832 192)
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||||
(pt 848 192)
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)
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||||
(connector
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||||
(pt 832 136)
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||||
(pt 832 192)
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||||
)
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||||
(connector
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||||
(pt 544 272)
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||||
(pt 848 272)
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)
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(connector
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||||
(pt 544 224)
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||||
(pt 592 224)
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(bus)
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)
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(connector
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(pt 592 224)
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||||
(pt 848 224)
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||||
(bus)
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)
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||||
(connector
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(pt 544 240)
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||||
(pt 576 240)
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(bus)
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)
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(connector
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(pt 576 240)
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(pt 848 240)
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(bus)
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)
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(connector
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(pt 544 256)
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(pt 560 256)
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)
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(connector
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(pt 560 256)
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(pt 848 256)
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)
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(junction (pt 608 152))
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(junction (pt 592 224))
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(junction (pt 576 240))
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(junction (pt 560 256))
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@ -20,9 +20,9 @@ applicable agreement for further details.
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*/
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(header "symbol" (version "1.2"))
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(symbol
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(rect 64 64 288 208)
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(rect 64 64 264 208)
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(text "RAM" (rect 5 0 28 12)(font "Arial" ))
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(text "inst" (rect 8 128 25 140)(font "Arial" ))
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(text "inst" (rect 24 128 41 140)(font "Arial" ))
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(port
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(pt 0 32)
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(input)
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@ -31,48 +31,62 @@ applicable agreement for further details.
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(line (pt 0 32)(pt 16 32))
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)
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(port
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(pt 224 48)
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(pt 0 64)
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(input)
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(text "data[15..0]" (rect 0 0 53 12)(font "Arial" ))
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(text "data[15..0]" (rect 146 40 199 52)(font "Arial" ))
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(line (pt 208 48)(pt 224 48)(line_width 3))
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)
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(port
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(pt 224 64)
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(input)
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(text "address[7..0]" (rect 0 0 64 12)(font "Arial" ))
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(text "address[7..0]" (rect 135 56 199 68)(font "Arial" ))
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(line (pt 208 64)(pt 224 64)(line_width 3))
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)
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(port
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(pt 0 80)
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(input)
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(text "clkMCU" (rect 0 0 38 12)(font "Arial" ))
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(text "clkMCU" (rect 21 75 59 87)(font "Arial" ))
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(line (pt 0 80)(pt 16 80))
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(text "address0[7..0]" (rect 0 0 70 12)(font "Arial" ))
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(text "address0[7..0]" (rect 24 56 94 68)(font "Arial" ))
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(line (pt 0 64)(pt 16 64)(line_width 3))
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)
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(port
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(pt 0 96)
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(input)
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(text "wr" (rect 0 0 10 12)(font "Arial" ))
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(text "wr" (rect 21 91 31 103)(font "Arial" ))
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(text "wr0" (rect 0 0 16 12)(font "Arial" ))
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(text "wr0" (rect 24 88 40 100)(font "Arial" ))
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(line (pt 0 96)(pt 16 96))
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)
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(port
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(pt 0 48)
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(bidir)
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(text "dataMCU[15..0]" (rect 0 0 77 12)(font "Arial" ))
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(text "dataMCU[15..0]" (rect 24 40 101 52)(font "Arial" ))
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(line (pt 16 48)(pt 0 48)(line_width 3))
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(pt 0 112)
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(input)
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(text "clk0" (rect 0 0 20 12)(font "Arial" ))
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(text "clk0" (rect 24 104 44 116)(font "Arial" ))
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(line (pt 0 112)(pt 16 112))
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)
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(port
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(pt 0 64)
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(pt 200 64)
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(input)
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(text "address1[7..0]" (rect 0 0 70 12)(font "Arial" ))
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(text "address1[7..0]" (rect 120 56 190 68)(font "Arial" ))
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(line (pt 184 64)(pt 200 64)(line_width 3))
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)
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(port
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(pt 200 96)
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(input)
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(text "wr1" (rect 0 0 16 12)(font "Arial" ))
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(text "wr1" (rect 160 88 176 100)(font "Arial" ))
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(line (pt 184 96)(pt 200 96))
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)
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(port
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(pt 200 112)
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(input)
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(text "clk1" (rect 0 0 20 12)(font "Arial" ))
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(text "clk1" (rect 160 104 180 116)(font "Arial" ))
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(line (pt 184 112)(pt 200 112))
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)
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(port
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(pt 0 80)
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(bidir)
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(text "addressMCU[7..0]" (rect 0 0 89 12)(font "Arial" ))
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(text "addressMCU[7..0]" (rect 24 56 113 68)(font "Arial" ))
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(line (pt 16 64)(pt 0 64)(line_width 3))
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(text "data0[15..0]" (rect 0 0 59 12)(font "Arial" ))
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(text "data0[15..0]" (rect 24 72 83 84)(font "Arial" ))
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(line (pt 16 80)(pt 0 80)(line_width 3))
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)
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(port
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(pt 200 80)
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(bidir)
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(text "data1[15..0]" (rect 0 0 59 12)(font "Arial" ))
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(text "data1[15..0]" (rect 128 72 187 84)(font "Arial" ))
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(line (pt 200 80)(pt 184 80)(line_width 3))
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)
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(drawing
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(rectangle (rect 16 16 208 128))
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(rectangle (rect 16 16 184 128))
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)
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)
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@ -2,16 +2,21 @@ library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_unsigned.all;
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-- Блок памяти способен асинхронно принимать данные с двух устройств одновременно
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entity RAM is
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port(
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clk : in std_logic;
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data : in std_logic_vector(15 downto 0);
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address : in std_logic_vector(7 downto 0);
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clkMCU : in std_logic;
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dataMCU : inout std_logic_vector(15 downto 0);
|
||||
addressMCU : inout std_logic_vector(7 downto 0);
|
||||
-- write when 0, read when 1
|
||||
wr : in std_logic
|
||||
|
||||
data0 : inout std_logic_vector(15 downto 0);
|
||||
address0 : in std_logic_vector(7 downto 0);
|
||||
wr0 : in std_logic;
|
||||
clk0 : in std_logic;
|
||||
|
||||
data1 : inout std_logic_vector(15 downto 0);
|
||||
address1 : in std_logic_vector(7 downto 0);
|
||||
wr1 : in std_logic;
|
||||
clk1 : in std_logic
|
||||
);
|
||||
end entity;
|
||||
|
||||
@ -20,23 +25,45 @@ architecture behavorial of RAM is
|
||||
type mem is array (255 downto 0) of std_logic_vector(15 downto 0);
|
||||
signal memory : mem;
|
||||
|
||||
signal clkMCUPrev : std_logic := '0';
|
||||
signal clk0Prev : std_logic := '0';
|
||||
signal clk1Prev : std_logic := '0';
|
||||
|
||||
begin
|
||||
|
||||
process(clk)
|
||||
variable addr : integer range 0 to 255;
|
||||
variable addr0 : integer range 0 to 255;
|
||||
variable addr1 : integer range 0 to 255;
|
||||
begin
|
||||
if rising_edge(clk) then
|
||||
if clkMCU = '1' and clkMCUPrev = '0' then
|
||||
addr := conv_integer(addressMCU); -- переменной addr присваивается новое значение сразу. Удобно для преобразования типов.
|
||||
if (wr = '0') then
|
||||
memory(addr) <= dataMCU; -- тут уже новое значение переменной addr
|
||||
|
||||
if clk1 = '1' and clk1Prev = '0' then
|
||||
addr1 := conv_integer(address1); -- переменной addr1 присваивается новое значение сразу. Удобно для преобразования типов.
|
||||
if (wr1 = '0') then
|
||||
memory(addr1) <= data1; -- тут уже новое значение переменной addr1
|
||||
else
|
||||
dataMCU <= memory(addr);
|
||||
data1 <= memory(addr1);
|
||||
end if;
|
||||
end if;
|
||||
clkMCUPrev <= clkMCU;
|
||||
if clk1 = '0' and clk1Prev = '1' then
|
||||
data1 <= (others => 'Z');
|
||||
end if;
|
||||
|
||||
clk1Prev <= clk1;
|
||||
|
||||
if clk0 = '1' and clk0Prev = '0' then
|
||||
addr0 := conv_integer(address0); -- переменной addr0 присваивается новое значение сразу. Удобно для преобразования типов.
|
||||
if (wr0 = '0') then
|
||||
memory(addr0) <= data0; -- тут уже новое значение переменной addr0
|
||||
else
|
||||
data0 <= memory(addr0);
|
||||
end if;
|
||||
end if;
|
||||
if clk0 = '0' and clk0Prev = '1' then
|
||||
data0 <= (others => 'Z');
|
||||
end if;
|
||||
|
||||
clk0Prev <= clk0;
|
||||
|
||||
end if;
|
||||
end process;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user