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Table of Contents
Majenko SDXL
This is a clone of the TCHIP010 Fubarino SD 1.5 from Microchip with a PIC32MX795F512H processor and micro SD card slot.
A popular use of this board and the original is to run RetroBSD.
Since this is such a large device I chose to mount it adjacent to a bread-board rather than acquire a breadboard capable of housing it. This is something to consider.
Pinout
+-----------MINI-USB------------+
5V VIN
GND GND
3V3P 3V3
0 RD8 RF5 29-TX
1 RD9 RF4 28-RX
2 RD10 RB15 A0
3 RD11 RB14 A1
4 RD0 RB13 A2
5 RC13 RB12 A3
6 RC14 RB11 A4
7 RD1 RB10 A5
8-RX RD2 RB9 A6 ICSP RPi
9-TX RD3 RB8 A7 ---- ---
10 RD4 RB6 A8 PGC 470R GPIO10
11 RD5 RB7 A9 PGD 470R GPIO11
12 RD6 GND VSS GND
13 RD7 3V3 VDD
14 RF0 !MCLR RST VPP 470R GPIO9
15 RF1 RB0 A10
16 RE0 RB1 A11
17 RE1 RB2 A12
18 RE2 P R RB3 A13
19 RE3 R E RB4 A14
20 RE4 O S RG9 27-SS
21 RE5 G E RG8 26-SDO
22 RE6 T RG7 25-SDI
LED 23 RE7 RG6 24-SCK
GND GND
+-----------MICRO-SD------------+
PROG RB5
CTRL RC15
Pickle Microchip PIC ICSP
Using Pickle on a Raspberry Pi we may perform ICSP (see either photo).
Configuration
The device configuration will vary depending on what version of a RPi you have, here is an example for my RPi 2B (see bottom photo).
DEVICE=RPI2 SLEEP=2 BITRULES=0x1000 VPP=26 PGC=19 PGD=13 PGM=255
Program Executive
It is a good idea to fetch the programming executive for this device which is the following.
RIPE_06_000201.hex
See this for more information about installing the PE.
Test
Testing ICSP by querying the device identify will produce something similar to this.
p32 i
[1D000000] [PROGRAM] 00020000 WORDS
[1F80F220] [DEVICEID] 5430E053 PIC32MX795F512H
[1FC00000] [BOOT] 00000C00 WORDS
[1FC02FF0] [DEVCFG3] 3FFFFFFF
[1FC02FF4] [DEVCFG2] FFF879D9
[1FC02FF8] [DEVCFG1] FF6A0C5B
[1FC02FFC] [DEVCFG0] 7FFFFFFF
[PE] RIPE_06_000201.hex
