51 lines
2.3 KiB
C
51 lines
2.3 KiB
C
/*
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* Порт УМП для TMS320F28335. Аппаратное представление данных C28x связывается с общим
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* регистровым протоколом; восьмибитные октеты линии нельзя приравнивать к размеру char
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* целевого компилятора.
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*/
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#include "ump_tms28335.h"
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extern unsigned int ump_log_read(unsigned int address);
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extern int ump_log_write(unsigned int address, unsigned int value);
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static uint16_t read_word(void *context, uint16_t address)
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{
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(void)context;
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/* Optional board binding to the common firmware-info static port. Older
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* consumers still link without it and return contract=0 (unknown version).
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* This hook changes neither PM67 CAN nor the saved parameter layout. */
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#ifdef UMP_FIRMWARE_INFO_READ
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if (address >= UMP_FIRMWARE_INFO && address < UMP_FIRMWARE_INFO + UMP_FIRMWARE_INFO_WORDS)
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return UMP_FIRMWARE_INFO_READ(address - UMP_FIRMWARE_INFO);
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#endif
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return (uint16_t)ump_log_read(address);
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}
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static int write_word(void *context, uint16_t address, uint16_t value)
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{ (void)context; return ump_log_write(address,value); }
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unsigned ump_tms28335_prepare(unsigned fn, uint16_t a, uint16_t n,
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uint16_t *reply, unsigned *error)
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{
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const ump_backend backend = {0,read_word,write_word};
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return ump_prepare(&backend,fn,a,n,1,reply,error);
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}
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size_t ump_tms28335_rtu(unsigned device, unsigned fn, uint16_t a,
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uint16_t n, ump_octet *reply, size_t capacity)
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{
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const ump_backend backend = {0,read_word,write_word};
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return ump_rtu_response(&backend,device,fn,a,n,reply,capacity);
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}
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unsigned ump_tms28335_capture(unsigned fn, uint16_t a, uint16_t n,
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uint16_t *words, unsigned *error)
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{
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const ump_backend backend = {0,read_word,write_word};
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return ump_prepare(&backend,fn,a,n,0,words,error);
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}
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unsigned ump_tms28335_fragment(const uint16_t *words, unsigned count, unsigned index,
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unsigned token, unsigned error, uint32_t *mdl, uint32_t *mdh)
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{
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ump_octet frame[8];
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if (!mdl || !mdh || !ump_can_fragment(words,count,index,token,error,frame)) return 0;
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*mdl=((uint32_t)frame[0]<<24)|((uint32_t)frame[1]<<16)|(frame[2]<<8)|frame[3];
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*mdh=((uint32_t)frame[4]<<24)|((uint32_t)frame[5]<<16)|(frame[6]<<8)|frame[7];
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return 8;
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}
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