I'm working with the Silab C8051F930. this is the code i can see in the debugger
83: SPI1DAT = biDataIn ; // write data register C:0x3848 8F86 MOV B_Enrgy_TH(0x86),R7 84: while (!TXBMT1); // wait on TXBMT C:0x384A 30B1FD JNB TXBMT1(0xB0.1),C:384A 85: while ((SPI1CFG & M_SPIBSY1) == M_SPIBSY1); // wait on SPIBSY C:0x384D E584 MOV A,SPI1CFG(0x84) C:0x384F 20E7FB JB 0xE0.7,C:384D 86: bValue = SPI1DAT; // read value C:0x3852 858616 MOV 0x16,B_Enrgy_TH(0x86) 87: SPIF1 = 0; // leave SPIF cleared 88:
SPI1DAT (line 83) is expressed as B_Enrgy_TH(0x86). SPI1DAT is indeed SFR (0x86) in SFR page 0x0. it is not clear where from this register got the name B_Enrgy_TH. i have no such varaible in the program. i did use such variable in previous project, but how is it popping up hear? besides, the main issue is when i check SPI1DAT i see it doesn't get the value i write into it.
any idea for the reason?
Hi Andy, thanks for the response. i have 2 SFR pages, (0x0 and 0xF). in this stage of the program the LEGACY_PAGE (0x0) is defined. i can also see in the SFRPAGE reg that it is indeed defined correctly. you can also see that SPI1CNFG is identified correctly (line 85) and this SFR is on the same SFRPAGE as SPI1CTL. any how there is no any variable or SFR in my program with the name B_ENRGY_TH. as mentioned before i had such variable in one of my old projects (I indeed copied some of the files from that old project to this project), but still in this project there is nor such variable neither SFR.
Try removing all of the object files, and any other latent crap, and then rebuild-all. Then be sure to burn the new code to the part.
Use a file manager, or grep, to search for this variable anywhere in your project directory.
Check any file/directory associations in the project.