Search found 25 matches

Thanks for the replies. There is already a delay_us(10) between each spi_write(10-14) on the master. I will attempt to increase that delay to see if it has any effect later tonight, I'll also post the ...

This is some test code running on an SPI slave.

#include <18F46K20.h>

#FUSES NOWDT //No Watch Dog Timer
#FUSES INTRC_IO //High speed osc with HW ena ...

I think I have found a second problem here. It would seem the PLL is not being used with the code above. I set the osc to output on RA6 and I get a 1MHz output. This 1MHz x 4 x 2 gives you the 8MHz in ...

Thanks for letting me know! When I chose this chip I took a look at the oscillator diagram in the data sheet and it does suggest the internal osc could be used. But yes you are sadly correct, TABLE 2- ...

OK. I think I have have it set properly for low speed usb. Problem is the device is still unrecognised. Does any one know if I'm missing something that is not being set in the CCS USB drivers? Or shou ...

Thanks for the reply. I wasn't aware of the restriction imposed by the internal clock. The previous chip I had used with USB (PIC18F47J53) had a LS48MHZ fuse to set low speed. Having looked at the fus ...

Hello I'm trying to get USB HID working with this PIC. However windows claims the device is unknown and gives error code 43. I have double checked the D+ and D- connections and they are correct.

He ...

I'm using a PIC18F26K20, and yes there seems to be bugs with floats and/or printf and floats. I have not come across a consistent work around so far.

Sorry I should explain more. The float constant is not really a constant, it was an experiment to see if initialising the float to non zero would help the problem (see PCM's post above). The returning ...

Oh I take it back! The one explicit cast I didn't try was casting current_speed to a float (even though a handful of lines above I initialise the variable as a float)

int8 ENC_GET_SPEED( ...

I initialised all my floats to non zero (1's in fact) and still no change, the only thing that will make it work is sprintf / printf. It looks like floats are broken Shocked

I will attempt to remove ...

Thanks for the replies. I already tried explicitly casting to no avail. I will attempt initialising them to a non zero number tomorrow (GMT) and let you know how it goes.

Hello I'm using CCS 4.120 currently and I have a very concerning problem. I have a calculation involving heavy use of floats. If I printf or sprintf the result of the calculation the result is correct ...

I discovered that the CCS driver structure was actually mostly correct. I took the system settings from the C18 driver and came up with a working driver.

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Hi. I have a Powertip PG320240WRF-HE9 which has a S1D13700 controller. I'm using a PIC18F46K20. I have searched the forums here and found a driver modifed by Eduardo Guilherme Brandt in 2006. I looked ...