1 | procedure Daten_anlegen
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2 | (
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3 | signal Daten_Telegramm_1: IN std_logic_vector (gSPI_Breite - 1 downto 0);
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4 | signal CRC_Telegramm_1 : IN std_logic_vector (gSPI_Breite - 1 downto 0);
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5 | signal Daten_Telegramm_2: IN std_logic_vector (gSPI_Breite - 1 downto 0);
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6 | signal CRC_Telegramm_2 : IN std_logic_vector (gSPI_Breite - 1 downto 0);
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7 | signal poSPI_CLK: IN STD_LOGIC; -- SPI_Clk
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8 | signal poSPI_CS_AL : out STD_LOGIC; -- SPI CS (Active Low)
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9 | signal poSPI_MOSI : out STD_LOGIC; -- SPI MOSI
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10 | signal poSPI_MISO : OUT STD_LOGIC -- SPI MISO
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11 | ) is
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12 |
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13 | begin
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14 |
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15 | SPI_Bus_anlegen (SPI_Daten => Daten_Telegramm_1, poSPI_CLK=>poSPI_CLK, poSPI_CS_AL=>poSPI_CS_AL, poSPI_MOSI=> poSPI_MOSI, poSPI_MISO=>poSPI_MISO);
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16 | SPI_Bus_anlegen (SPI_Daten => CRC_Telegramm_1, poSPI_CLK=>poSPI_CLK, poSPI_CS_AL=>poSPI_CS_AL, poSPI_MOSI=> poSPI_MOSI, poSPI_MISO=>poSPI_MISO);
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17 | SPI_Bus_anlegen (SPI_Daten => Daten_Telegramm_2, poSPI_CLK=>poSPI_CLK, poSPI_CS_AL=>poSPI_CS_AL, poSPI_MOSI=> poSPI_MOSI, poSPI_MISO=>poSPI_MISO);
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18 | SPI_Bus_anlegen (SPI_Daten => CRC_Telegramm_2, poSPI_CLK=>poSPI_CLK, poSPI_CS_AL=>poSPI_CS_AL, poSPI_MOSI=> poSPI_MOSI, poSPI_MISO=>poSPI_MISO);
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19 | end Daten_anlegen;
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20 |
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21 |
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22 | procedure SPI_Bus_anlegen
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23 | (
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24 | signal SPI_Daten : IN std_logic_vector(gSPI_Breite - 1 downto 0);
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25 | signal poSPI_CLK: IN STD_LOGIC; -- SPI_Clk
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26 | signal poSPI_CS_AL : out STD_LOGIC; -- SPI CS (Active Low)
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27 | signal poSPI_MOSI : out STD_LOGIC; -- SPI MOSI
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28 | signal poSPI_MISO : OUT STD_LOGIC -- SPI MISO
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29 | ) is
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30 |
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31 |
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32 | begin
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33 | wait until falling_edge(poSPI_CLK);
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34 | poSPI_CS_AL <= '1';
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35 | wait until falling_edge(poSPI_CLK);
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36 | poSPI_CS_AL <= '0';
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37 | poSPI_MOSI <= SPI_Daten(7);
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38 | wait until rising_edge(poSPI_CLK);
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39 | wait until falling_edge(poSPI_CLK);
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40 | poSPI_MOSI <= SPI_Daten(6);
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41 | wait until rising_edge(poSPI_CLK);
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42 | wait until falling_edge(poSPI_CLK);
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43 | poSPI_MOSI <= SPI_Daten(5);
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44 | wait until rising_edge(poSPI_CLK);
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45 | wait until falling_edge(poSPI_CLK);
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46 | poSPI_MOSI <= SPI_Daten(4);
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47 | wait until rising_edge(poSPI_CLK);
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48 | wait until falling_edge(poSPI_CLK);
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49 | poSPI_MOSI <= SPI_Daten(3);
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50 | wait until rising_edge(poSPI_CLK);
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51 | wait until falling_edge(poSPI_CLK);
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52 | poSPI_MOSI <= SPI_Daten(2);
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53 | wait until rising_edge(poSPI_CLK);
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54 | wait until falling_edge(poSPI_CLK);
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55 | poSPI_MOSI <= SPI_Daten(1);
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56 | wait until rising_edge(poSPI_CLK);
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57 | wait until falling_edge(poSPI_CLK);
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58 | poSPI_MOSI <= SPI_Daten(0);
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59 | wait until rising_edge(poSPI_CLK);
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60 | poSPI_CS_AL <= '1';
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61 | wait until rising_edge(poSPI_CLK);
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62 | end SPI_Bus_anlegen ;
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