OMG Whilst testing my own initialisation on a 2Gig SD card today, 07/10/21, I thought I would try a 2Gig card formatted to FAT32 since the boot process is the same for small cards. Of course it worked. I then tried the FAT32_Dev_Read_Sector(0,dataBuffer); with zero init. It worked. So the so called ...

Sorry to confuse you radug.


Jump to bottom post of mine.

Thank you for your time radug. I have tried it and all I get is the address of the databuffer. If I look at 512 bytes at that address, I get the address 512 times or get the address + x 512 times. The 512 bytes of the buffer are all zeros. I believe the fat16 was similar except it worked fine. "unsi...

Hi again, Hoping this is an easy question for some. I am trying to use the FAT32 library for the first time. Jump to my last post! SDCARD = FAT32_Init(); returns a 0 which means it must be working. I am trying to read the boot sector using FAT32_Dev_Read_Sector(0,dataBuffer[x]); The system hangs if ...

I see the M-Class is Microchip's newer core I have found the registers relating to the MMU and TLB on page 62 of the data sheet 3.7 M-Class Core Configuration Typing something like this causes an error but the compiler still compiles. CP0_SET(0,0x80240480); CP0_SET (const char reg/regfield, unsigned...

Thank you Filip, The DMA example you pointed me to is an odd example, Turn on 3 leds via 1 k resistors with DAM & a Timer and do nothing else. Exactly what voltage is the Pic lol. I mentioned previously, the DMA is the easy bit, it's the EBI that is not so straightforward. The DMA is doing more than...

Hi Filip, No still not working but thank you for your interest. I have a tonne of issues and not sure if it's due to the IDE. The DMA seems to pull the chip select low but I am still testing. One issue is that the data from the SRAM seems to be just a low byte of PMDIN, not a full 16 bits and that i...

Can anyone help with my problem. I have implemented the EBI on a Pic32MZ2048efh144, of course it doesn't work so I am checking the basics first. If I try and read or write to the SRAM, the EBI CS0 goes High, the SRAM CS is active low as are all the SRAM chips I have looked at. Trying to invert the p...

There is a typo in the 'defs' for the Pic32MZ2048ecm100, just on the Pic I was using, not the others lol. There is a register one can use when implementing the internal temperature sensor, which is how I found it. The register const register unsigned short int RQCONVRT = 29; it should read const reg...

Hi, I'm looking for some support or help or a pointer if I'm doing something wrong. I'm on the verge of understanding DMA on a Pic32. I got the DMA to transfer a jpeg of 45000 bytes to an empty buffer, it worked. If I transfer say 2 bytes from Port C to another physical address, I get all the correc...

How long should it take for a secondary oscillator to become stable? I have the new MCU card with the Pic32 MZ 2048 EFH 144 The chip would hang when turning on from cold. I put some bits on a TFT to check the secondary oscillator. Mine seems to take 3 minutes or more to start, sometimes it doesn't. ...

Hi all, I can also confirm the following- If you turn on the secondary oscillator to use with the RTCC (as an example) the secondary clock can take over 1 minute to warm up. Yes over one minute. I'll be asking is this correct. So in my case, I had to stop my GPS from updating the RTCC until the seco...

Thank you Filip

You have been most helpful.

PS, I could not check for exceptions because my debugger does not work with this chip.
My IDE can't find the device.
Thank you again.

Hi Again, More bugs to report. Try this in a new project float value = 0.1047 void InitTimer2_3(){ T2CON = 0x8008; T3CON = 0x0; TMR2 = 0; TMR3 = 0; T3IP0_bit = 1; T3IP1_bit = 1; T3IP2_bit = 1; T3IF_bit = 0; T3IE_bit = 1; PR2 = 57600; PR3 = 1525; } void Timer2_3Interrupt() iv IVT_TIMER_3 ilevel 7 ics...

I had the same problem years ago.

Reinstall the Mikroprog software (latest 2.6.0) and reinstall the correct driver when prompted.
The driver can be a bugger to get right (sometimes)