Forum : ST7/STM8
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November 19, 2009 - 4:20pm
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Hi! I have a problem with the ADC, I want to switch between references, sometimes I want to use Vdd/Vss and sometimes Vref+ and Vref- but without hardware configuration change, during program execution. Is this posible? what is the register bit where I can choose the reference, or it doesn´t exists? I have worked with other MCUs and they have this option. Another thing, I am trying to simulate my program with the simulator and the timer interrupt doesn´t work fine, I have tried a lot of configurations but nothing, I thing that this may work: CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER4, ENABLE); TIM4_TimeBaseInit(TIM4_PRESCALER_1, 0xFF); TIM4_SetCounter(0x00); TIM4_ITConfig(TIM4_IT_UPDATE, ENABLE); TIM4_Cmd(ENABLE); I try different breakpoints an I realize that the counter registers don´t count, so is not the interrupt, I thing I am doing something wrong but I don´t know what!, pleas help me Thank you!! |
Hi Alberto,
It looks like you are working on an STM8. It is not possible to change VRef+/- by software.
You may ask the ST support guys (ST forum), which may have ideas about how to handle your issue.
Regards,
Bruno
ok thank you very much I try to ask them, and about the timer simulation? what I am doing wrong?
sorry, you are right I am working with STM8207