Controlling a single layer

[Deleted user]

Milestone when a single layer can be controlled

Steps

• Write a function that uses a loop or loops to set certain 'pixels' in a layer, using the LedCube_setPixel function. To begin with a pattern could be red, green, blue, red, green, blue, red, green for row one, and so on.
• Test if the data is correctly set in the CubeData by printing in to a terminal and checking the pattern.
• Install the boot loader on the MCU and make sure the MCU is programmable using the the boot loader program and a custom linker script.
• Check whether the configuration bits are right because the configuration bits can only be set at the time of writing the boot loader to the MCU. This check could be performed by checking reading the bits from the registers (if possible) or by pulsing an output pin and checking the frequency on a scope.
• Write a function that outputs a colour on a single led of every row one at a time in a loop with a delay.
• Connect all the wires to the PanelControl PCBs and check with the previously written function whether the wires are correctly connected. And close the LedCube box.
• Use the function written in step one to check if all LEDs could be written with the right colour.
• Write functions to make all the LEDs of one row a certain colour and check whether this function works correctly by enabling the LEDs one after another, going from coordinate (0, 0, z) to (7, 7, z).

[Deleted user]

Had to make an extra function in CubeControlData and LedCube to allow filling a row for example one LED at a time.

So the pattern for this row will be:

index (below) LED:	0	1	2	3	4	5	6	7
1	1	0	0	0	0	0	0	0
2	1	1	0	0	0	0	0	0
3	1	1	1	0	0	0	0	0
4	1	1	1	1	0	0	0	0
5	1	1	1	1	1	0	0	0
6	1	1	1	1	1	1	0	0
7	1	1	1	1	1	1	1	0
8	1	1	1	1	1	1	1	1

The function is called LedCube_updateUsingCopy and copies the content of the write 'buffer' to the 'read' buffer. This way it is possible to add pixels without the previous set pixels are lost after the update or previous data is present after the update.

[Deleted user]

Wrote functions to print the configuration bits from their address. The LedCube's configuration bits is the configuration bits that are defined in LedCube's main.c.
The bootloader's configuration bits are compared before and after the changes. Also made some permanent changes in the configbits. Like Clock switching is now enabled.
Frequency is checked by periodically (by timer ISR) beeping the buzzer.

Bootloader's Configuration Bits (before changes):

CW1: Flash Configuration Word 1

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	---	---	---	---	---	---	---	---	r	JTAGEN	GCP	GWRP	!DEBUG	r	ICS1	ICS0	FWDTEN	WINDIS	r	FWPSA	WDTPS3	WDTPS2	WDTPS1	WDTPS0
Value	1	1	1	1	1	1	1	1	0	0	1	1	1	1	1	1	0	0	1	1	1	0	0	1

CW2: Flash Configuration Word 2

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	---	---	---	---	---	---	---	---	IESO	WUTSEL1	WUTSEL0	SOSCSEL1	SOSCSEL0	FNOSC2	FNOSC1	FNOSC0	FCKSM1	FCKSM0	OSCIOFCN	IOL1WAY	r	I2C1SEL	POSCMD1	POSCMD0
Value	1	1	1	1	1	1	1	1	0	1	1	1	1	0	0	0	0	1	1	0	1	1	0	1

Bootloader's Configuration Bits (after changes):

CW1: Flash Configuration Word 1

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	---	---	---	---	---	---	---	---	r	JTAGEN	GCP	GWRP	!DEBUG	r	ICS1	ICS0	FWDTEN	WINDIS	r	FWPSA	WDTPS3	WDTPS2	WDTPS1	WDTPS0
Value	1	1	1	1	1	1	1	1	0	0	1	1	1	1	1	1	0	1	1	1	1	1	1	1

CW2: Flash Configuration Word 2

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	-------	-------	-------	-------	-------	-------	-------	---	IESO	WUTSEL1	WUTSEL0	SOSCSEL1	SOSCSEL0	FNOSC2	FNOSC1	FNOSC0	FCKSM1	FCKSM0	OSCIOFCN	IOL1WAY	r	I2C1SEL	POSCMD1	POSCMD0
Value	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	1	0	1	1	0	1	1	0	1

LedCube's Configuration Bits:

CW1: Flash Configuration Word 1

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	---	---	---	---	---	---	---	---	r	JTAGEN	GCP	GWRP	!DEBUG	r	ICS1	ICS0	FWDTEN	WINDIS	r	FWPSA	WDTPS3	WDTPS2	WDTPS1	WDTPS0
Value	1	1	1	1	1	1	1	1	0	0	1	1	1	1	1	1	0	1	1	1	1	1	1	1

CW2: Flash Configuration Word 2

Bit number	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Description	---	---	---	---	---	---	---	---	IESO	WUTSEL1	WUTSEL0	SOSCSEL1	SOSCSEL0	FNOSC2	FNOSC1	FNOSC0	FCKSM1	FCKSM0	OSCIOFCN	IOL1WAY	r	I2C1SEL	POSCMD1	POSCMD0
Value	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	1	1	0	1	0	1	1	1	1

[Deleted user]

Now wrote a nice function to output the configuration words. This outputs the results of the words in a very user friendly way. See the following example output.

Reading Flash Configuration Word 1...
Binary read value:
 111111110011111101111111
Successfully verified the Flash Configuration Word 1 with address 0x00ABFE
 JTAGEN: JTAG Port Enable bit
  [JTAGEN_OFF] JTAG port is disabled
 GCP: General Segment Program Memory Code Protection bit
  [GCP_OFF] Code protection is disabled
 GWRP: General Segment Code Flash Write Protection bit
  [GWRP_OFF] Writes to program memory are allowed
 !DEBUG: Background Debugger Enable bit
  [BKBUG_OFF] Device resets into Operational mode
 ICS<1:0>: Emulator Pin Placement Select bits
  [ICS_PGx1] Emulator EMUC1/EMUD1 pins are shared with PGC1/PGD1
 FWDTEN: Watchdog Timer Enable bit
  [FWDTEN_OFF] Watchdog Timer is disabled
 WINDIS: Windowed Watchdog Timer Disable bit
  [WINDIS_ON] Standard Watchdog Timer is enabled
 FWPSA: WDT Prescaler Ratio Select bit
  [FWPSA_PR128] Prescaler ratio of 1:128
 WDTPS<3:0>: Watchdog Timer Postscaler Select bits
  [WDTPS_PS32768] 1:32768
Done Reading Flash Configuration Word 1.

Reading Flash Configuration Word 2...
Binary read value:
111111111111100101101101
Successfully verified the Flash Configuration Word 2 with address 0x00ABFC
 IESO: Internal External Switchover bit
  [IESO_ON] IESO mode (Two-Speed Start-up) is enabled
 WUTSEL<1:0>: Voltage Regulator Standby Mode Wake-up Time Select bits
  [WUTSEL_LEG] Default regulator start-up time is used
 SOSCSEL<1:0>: Secondary Oscillator Power Mode Select bits
  [SOSCSEL_SOSC] Default (High Drive Strength) mode
 FNOSC<2:0>: Initial Oscillator Select bits
  [FNOSC_FRCPLL] Fast RC Oscillator with Postscaler and PLL module (FRCPLL)
 FCKSM<1:0>: Clock Switching and Fail-Safe Clock Monitor Configuration bits
  [FCKSM_CSECMD] Clock switching is enabled, Fail-Safe Clock Monitor is disabled
 OSCIOFCN: OSCO Pin Configuration bit:
  OSCIOFCN has no effect on OSCO/CLKO/RA3
 IOL1WAY: IOLOCK One-Way Set Enable bit
  [IOL1WAY_OFF] The IOLOCK (OSCCON<6>) bit can be set and cleared as needed, provided the unlock sequence has been completed
 I2C1SEL: I2C1 Pin Select bit
  [I2C1SEL_PRI] Use default SCL1/SDA1 pins
 POSCMD<1:0:> Primary Oscillator Configuration bits
  [POSCMOD_XT] XT Oscillator mode is selected
Done Reading Flash Configuration Word 2.

[Deleted user]

Wrote very simple code for checking the right wire connection. It simply loops through the 8 rows enabling single colour on one row at every time.

uint32_t delay = 1000;
        uint8_t i = 0;
        for(i = 0; i < CUBEDATA_MAX_X_C; i++) {
            LedCube_setPixel(i,0,0, LEDCUBE_MAX_INTENSITY, 0, 0);
            LedCube_update();
            Delay_ms(delay);
            LedCube_resetData();
            LedCube_setPixel(i,0,0, 0, LEDCUBE_MAX_INTENSITY, 0);
            LedCube_update();
            Delay_ms(delay);
            LedCube_resetData();
            LedCube_setPixel(i,0,0, 0, 0, LEDCUBE_MAX_INTENSITY);
            LedCube_update();
            Delay_ms(delay);
            LedCube_resetData();
        }

[Deleted user]

Tested code from fill.c and it worked as expected.