Matthias Biermann
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
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#include <stdint.h>
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// -----------------------------------------------------
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// Funktionen zum Setzen einzelner Registerwerte
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// -----------------------------------------------------
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void setRdGenRun(volatile uint32_t *pBaseAddr, uint8_t run)
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{
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pBaseAddr[0] = (pBaseAddr[0] & 0xFFFFFF7F) | ((run&1)<< 7);
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}
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void setRdGenPipelining(volatile uint32_t *pBaseAddr, uint8_t pl)
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{
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pBaseAddr[0] = (pBaseAddr[0] & 0xFFFFFFBF) | ((pl&1)<< 6);
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}
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void setRdGenTriggerOutput(volatile uint32_t *pBaseAddr, uint8_t tr)
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{
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pBaseAddr[0] = (pBaseAddr[0] & 0xFFFFFFDF) | ((tr&1) << 5);
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}
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void setRdGenBurstLen(volatile uint32_t *pBaseAddr, uint8_t bl)
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{
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if (bl<1) bl = 1;
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if (bl>16) bl = 16;
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pBaseAddr[0] = (pBaseAddr[0] & 0xFFFFFFE0) | bl;
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}
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void setRdGenARCACHE(volatile uint32_t *pBaseAddr, uint8_t arc)
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{
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pBaseAddr[0] = (pBaseAddr[0] & 0xFFFF00FF) | ((arc&15) << 8);
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}
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void setRdGenPauseCycles(volatile uint32_t *pBaseAddr, uint16_t pc)
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{
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pBaseAddr[0] = (pBaseAddr[0] & 0x0000FFFF) | (pc << 16);
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}
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void setRdGenAddress(volatile uint32_t *pBaseAddr, uint32_t memaddr)
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{
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pBaseAddr[1] = memaddr;
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}
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// -----------------------------------------------------
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// Funktion zum Setzen von Parametern des Lesezugriffs
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// -----------------------------------------------------
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void setRdGenDefaults(volatile uint32_t *pBaseAddr)
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{
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setRdGenRun (pBaseAddr,0);
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setRdGenTriggerOutput (pBaseAddr,1);
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setRdGenPauseCycles (pBaseAddr,50);
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setRdGenBurstLen (pBaseAddr,8);
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setRdGenPipelining (pBaseAddr,0);
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}
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int main()
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{
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int i;
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volatile uint32_t* HP[4] = {(uint32_t*)0x43c00000,(uint32_t*)0x43c10000,
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(uint32_t*)0x43c20000,(uint32_t*)0x43c30000};
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// Parameter für alle HP-Ports gleich setzen ...
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for (i=0;i<4;i++) setRdGenDefaults(HP[i]);
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// ... und dann das IP aktivieren (bzw. auch nicht)
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setRdGenRun(HP[0],1);
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//setRdGenRun(HP[1],1);
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//setRdGenRun(HP[2],1);
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//setRdGenRun(HP[3],1);
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return 0;
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}
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