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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN4253 датащи(PDF) 36 Page - STMicroelectronics |
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AN4253 датащи(HTML) 36 Page - STMicroelectronics |
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36 / 44 page  asm examples AN4253 36/44 DocID024255 Rev 2 se_bc 00,02,sscm_error_handler // if yes - jump to SSCM Error handler ... sscm_error: // user code - handler of SSCM error se_b . // break due to SSCM fault A.5 FCCU handling block // Base address of FCCU module to r7 e_lis r7, FCCU_BASE@h e_or2i r7, FCCU_BASE@l // Read Status e_li r0, FCCU_OPR_STATUS // prepare command e_stw r0, FCCU_REG_CTRL (r7) // issue command .read_status: e_lwz r0, FCCU_REG_CTRL (r7) // read FCCU_CTRL register e_rlwinm r0,r0,26,30,31 // rotate OPS field and mask it se_cmpi r0, FCCU_OPS_SUCCESS // look for OPS = SUCCESS se_bc 00,02,.read_status // wait to finish the command e_lwz r5, FCCU_REG_STATUS (r7) // read Status se_cmpi r5,0 // Status == NORMAL? se_bc 1,2,fccu_no_fault // no fault in fccu > skip fault handling // Read CF faults e_li r0, FCCU_OPR_CF_READ // prepare command e_stw r0, FCCU_REG_CTRL (r7) // issue command .read_cf: e_lwz r0, FCCU_REG_CTRL (r7) // read FCCU_CTRL register e_rlwinm r0,r0,26,30,31 // rotate OPS field and mask it se_cmpi r0, FCCU_OPS_SUCCESS // look for OPS = SUCCESS se_bc 00,02,.read_cf // wait to finish the command e_lwz r3, FCCU_REG_CF (r7) // read CF register to r3 register mtsprg0 r3 // save them to Core SPRG0 register // Read NCF faults e_li r0, FCCU_OPR_NCF_READ // prepare command e_stw r0, FCCU_REG_CTRL (r7) // issue command .read_ncf: e_lwz r0, FCCU_REG_CTRL (r7) // read FCCU_CTRL register e_rlwinm r0,r0,26,30,31 // rotate OPS field and mask it se_cmpi r0, FCCU_OPS_SUCCESS // look for OPS = SUCCESS se_bc 00,02,.read_ncf // wait to finish the command e_lwz r4, FCCU_REG_NCF (r7) // read NCF register to r4 register mtsprg1 r4 // save them to Core SPRG1 register // Check STCU faults se_mr r0,r3 // take copy of CF faults e_and2is. r0,0x0850 // mask bits CF[27,22,20] se_cmpi r0,0 // is one of them '1' ? se_bc 00,02,fccu_stcu_error // if yes - jump to error handler se_btsti r4, FCCU_NCF12 // check bit NCF[12] se_bc 1,2,fccu_analyze // jump if all STCU bits are '0' |
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