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Dear Sr. Can i access registers (reading and writing) SFR inserted at different addresses from the comercial 8051 ones? For example the following addresses registers are not accessible for writing: SFR LDO_CTRL = 0xC0; SFR CH1 sfr = 0xC5; sfr CH2 = 0xC6; SFR RX_F1 = 0xC9; SFR RX_F2 = 0xCA; SFR RX_P1 = 0xCB; SFR RX_P2 = 0xCC;
KEIL IDE displays the following message:
SFR_EXTRAS1.C(38): error C202: 'LDO_CTRL': undefined identifier SFR_EXTRAS1.C(43): error C202: 'CH1': undefined identifier SFR_EXTRAS1.C(44): error C202: 'CH2': undefined identifier SFR_EXTRAS1.C(45): error C202: 'RX_F1': undefined identifier SFR_EXTRAS1.C(46): error C202: 'RX_F2': undefined identifier SFR_EXTRAS1.C(47): error C202: 'RX_P1': undefined identifier SFR_EXTRAS1.C(48): error C202: 'RX_P2': undefined identifier
Hello Andrew, I made some corrections in "hearder" file . Thanks for the guidance. Interestingly, for some addresses of SFR had no problems, then a part of the header and Error Message.
At the end of this message is displayed error messages
Header: LDO_CTRL sfr = 0xC0; ENABLE1 sfr = 0xC1; ENABLE2 sfr = 0xC2; SYNTH1 sfr = 0xC3; SYNTH2 sfr = 0xC4; CH1 sfr = 0xC5; sfr CH2 = 0xC6; RX_F1 sfr = 0xC9; RX_F2 sfr = 0xCA; RX_P1 sfr = 0xCB; RX_P2 sfr = 0xCC; TRANSCEIVER_CTRL sfr = 0xCE; sfr PSW = 0xD0; TX_A1 sfr = 0xD1; TX_A2 sfr = 0xD2; I2CSM_SETUP sfr = 0xD8; sfr ACC = 0xE0; I2CSM_STATUS sfr = 0xE8;
Error Message Hello Andrew, I made some corrections in "hearder" Thanks for the guidance. Interestingly, for some addresses of SFR had no problems, then a part of the header and source code.
Error Message SFR_EXTRAS1.C(38): error C202: 'LDO_CTRL': undefined identifier SFR_EXTRAS1.C(43): error C202: 'CH1': undefined identifier SFR_EXTRAS1.C(44): error C202: 'CH2': undefined identifier SFR_EXTRAS1.C(45): error C202: 'RX_F1': undefined identifier SFR_EXTRAS1.C(46): error C202: 'RX_F2': undefined identifier SFR_EXTRAS1.C(47): error C202: 'RX_P1': undefined identifier SFR_EXTRAS1.C(48): error C202: 'RX_P2': undefined identifier SFR_EXTRAS1.C(53): error C202: 'LDO_CTRL': undefined identifier
Piece of the Source Code : " while (1) { LDO_CTRL = 0X01; ENABLE1 = 0XFE; ENABLE2 = 0XFF; SYNTH1 = 0XFE; SYNTH2 = 0XFF; CH1 = 0XFE; CH2 = 0XFF; RX_F1 = 0XFE; RX_F2 = 0XFF; RX_P1 = 0XFE; RX_P2 = 0XFF; TRANSCEIVER_CTRL = 0XFE; TX_A1 = 0XFE; TX_A2 = 0XFF; "
I'm sorry, the reserved word "sfr" was mistakenly inserted after the name of the register SFR, but the header file this error does not occur.
Claudionor Santos
So, what are you saying?
Do not manually re-type code into your post - use copy-and-paste.
And pay attention to the instructions for posting source code:
www.danlhenry.com/.../keil_code.png
And pay attention to the 'Preview' to ensure that it's correct before you post it.
Andrew, thanks for the tips.
The errors presented in the messages have been corrected.
Thanks, Claudionor.
Excellent!