Equip your Genius
Welcome to the Parallax Discussion Forums, sign-up to participate.
Quick Links
Prop2 Flash loader
ozpropdev
Posts: 2,706
in Propeller 2
Hi All
Here's a program to load your code from flash on your P2_ES eval boards.
Simply include your .obj file at the end of the program and it will be stored into the flash along with a loader.
Make sure the "FLASH" switch is on.
Here's a program to load your code from flash on your P2_ES eval boards.
Simply include your .obj file at the end of the program and it will be stored into the flash along with a loader.
Make sure the "FLASH" switch is on.
Comments
This is good. I don't think I've heard anyone officially using flash yet.
Can you tell us how fast it is to boot from flash if you already know or can test it easily, e.g. time from the rising edge of reset to start of small app booting from flash to toggle a pin? I am still waiting to hear if it is slow or fast, and if fast, just how fast.
Roger.
The ROM booter detects the flash and loads 1024 bytes (my loader) into hub.
If the checksum = 'Prop' then the code starts.
My loader then loads the code from flash to hub and then starts it.
It is a little endian format value.
From the docs
I think he was referring to the typo in the comment: 'Proo' instead of 'Prop'
Code is good to go!
I'm way to focused on the PASM I didn't even notice the typo in the comment.
Apologies @pmrobert
Leave off the code that determines "size" and the size long and the objs and then compile.
Then, you append this binary with one long of the obj size and then the obj binary.
Right?
Chip
I ran some test code and here's the results of 8 power cycles reading GETRND. and here's the result og 8 resets.
Looks Ok.
Leave the terminal running, move the WAIT to after send so tx finishes, and add a HUBSET reset to make it repeat indefinitely ...
And data dump attached
It looks okay, doesn't it?
First glance looks great. Probably should do some binning or something ... that's actual work.
I can't test this. First, I set the "Flash" and P95DN switches. Then I load the program using Spin 2 GUI. However, if any of those switches is set, I get a message that it can't find a P2. That, plus the inability to boot from the SD, makes me think that my board is not working correctly.
Kind regards, Samuel Lourenço
No, I don't think that would mean anything. The PRNG is running, being what it is, and we just need to know that it started up with a unique value.
I don't know about the timing of Spin2 GUI, but if you set the flash switch on with the others off, you should be able to download from PNut.
Samuel, it's possible there could be something wrong with your board. We tested every pin on the chip, but we didn't test the flash or the SD socket. If there is anything wrong, it ought to be apparent by visual inspection. Look at the flash and SD card SMT components through a magnifier and see if everything looks okay.
Personally, I had many problems with solder bridges that stay hidden under capacitors and resistors (0805s), when soldering with solder paste and hot air. I'll do an inspection tomorrow and some measurements as well, to see if the switches are having an effect. A simple test I could do is to measure P59 with both of its switches on. If the switches are OK, I should measure around 1.65V there.
By the way, I should mention that I can read the contents of the SD card under TAQOZ (although, I only tried the DIR command). On another note, where can I get PNut?
Kind regards, Samuel Lourenço
The FLASH switch is needed on for all flash ops. Try turning on P59 Up. I can make it program with both P59 Up and Down on together.
I program the flash with both P59 switches off and 'FLASH' on.
After programming I set P69 pulldown on for fast SPI boot.
For all my testing I use Pnut.
Thanks for the tip. I may be able to use it in the ROM Monitor for the next silicon
evan
Here is your code (untested) using...
1. Hopefully a standard method to set the xtal frequency. (note I didn't decode your divide/multiply/divide to get 180MHz)
2. Using the Serial ROM Monitor to display your results.
'' RR20190119 001 mod to use the monitor serial routines CON _XTALFREQ = 20_000_000 ' crystal frequency _XDIV = 4 '\ '\ crystal divider to give 5.0MHz _XMUL = 72 '| 180MHz '| crystal / div * mul to give 360MHz _XDIVP = 2 '/ '/ crystal / div * mul /divp to give 180MHz _XOSC = %10 '15pF ' %00=OFF, %01=OSC, %10=15pF, %11=30pF _XSEL = %11 'XI+PLL ' %00=rcfast(20+MHz), %01=rcslow(~20KHz), %10=XI(5ms), %11=XI+PLL(10ms) _XPPPP = ((_XDIVP>>1) + 15) & $F ' 1->15, 2->0, 4->1, 6->2...30->14 _CLOCKFREQ = _XTALFREQ / _XDIV * _XMUL / _XDIVP ' internal clock frequency _SETFREQ = 1<<24 + (_XDIV-1)<<18 + (_XMUL-1)<<8 + _XPPPP<<4 + _XOSC<<2 ' %0000_000e_dddddd_mmmmmmmmmm_pppp_cc_00 ' setup oscillator _ENAFREQ = _SETFREQ + _XSEL ' %0000_000e_dddddd_mmmmmmmmmm_pppp_cc_ss ' enable oscillator '------------------------------------------------------------------------------------------------ _baud = 115_200 _bitper = (_clockfreq / _baud) << 16 + 7 ' 115200 baud, 8 bits _txmode = %0000_0000_000_0000000000000_01_11110_0 'async tx mode, output enabled for smart output _rxmode = %0000_0000_000_0000000000000_00_11111_0 'async rx mode, input enabled for smart input '------------------------------------------------------------------------------------------------ rx_pin = 63 ' pin serial receiver tx_pin = 62 ' pin serial transmitter '------------------------------------------------------------------------------------------------ ''============[ ROM MONITOR Equates]============================================================= _HUBBUF = $FC000 ' overwrite Booter (used as serial receive buffer, etc) _SerialInit = $fcab8 ' Serial Initialise (lmm_x & lmm_bufad must be set first) _HubTxCR = $fcae4 ' Sends <cr><lf> (overwrites lmm_x) _HubTx = $fcaf0 ' Sends lmm_x (can be up to 4 bytes) _HubHex8 = $fcb28 ' Sends lmm_x as Hex char(s) after setting lmm_f as 8 hex chars ''-------[ COG LMM parameters, etc ]------------------------------------------------------------- lmm_x = $1e0 ' parameter passed to/from LMM routine (typically a value) ''----------------------------------------------------------------------------------------------- value = lmm_x DAT orgh $400 org stage1 getrnd value1 getrnd value2 getrnd value3 getrnd value4 '+-------[ Set Xtal ]----------------------------------------------------------+ '' hubset ##clk | %1111_10_00 'enable crystal+PLL, stay in 20MHz+ mode '' waitx ##20_000_000/100 'wait ~10ms for crystal+PLL to stabilize '' hubset ##clk | %1111_10_11 'now switch to PLL running at 180 MHz hubset #0 ' set 20MHz+ mode hubset ##_SETFREQ ' setup oscillator waitx ##20_000_000/100 ' ~10ms hubset ##_ENAFREQ ' enable oscillator '+-----------------------------------------------------------------------------+ '+-------[ Start Serial ]------------------------------------------------------+ '' wrpin #%1_11110_0,#tx_pin '' wxpin ##nco | 7,#tx_pin '' dirh #tx_pin mov lmm_bufad, ##_HUBBUF ' locn of hub buffer for serial routine mov lmm_x, ##_bitper ' sets serial baud call #_SerialInit ' initialise serial '+-----------------------------------------------------------------------------+ '+-------[ Send Serial ]-------------------------------------------------------+ mov value,value1 call #send_hex8 'show result mov value,value2 call #send_hex8 mov value,value3 call #send_hex8 mov value,value4 call #send_hex8 '' call #newline call #_hubTxCR waitx ##sys_clk / 100 'allow time for tx to complete hubset ##%0001<<28 'hard reset jmp #$ '+-----------------------------------------------------------------------------+ {{ newline mov pa,#13 call #send_char mov pa,#10 send_char rdpin pb,#tx_pin wc if_c jmp #send_char wypin pa,#tx_pin ret wcz send_hex8 mov countx,#8 .loop getnib pa,value,#7 cmp pa,#9 wcz if_a add pa,#"A"-10 if_be add pa,#"0" call #send_char rol value,#4 djnz countx,#.loop space mov pa,#" " jmp #send_char }} send_hex8 call #_hubHex8 mov lmm_x,#" " call #_hubTx ret '+-----------------------------------------------------------------------------+ ''value res 1 'use lmm_x value1 res 1 value2 res 1 value3 res 1 value4 res 1 ''countx res 1There are a couple of other tricks that I will put up on the Tricks and Traps thread...
' convert nibble to ASCII hex char using only the C flag getnib x,value,#7 '\ either extracts only lower nibble and x,#$0F '/ or x,#"0" cmp x,#";" wc ' : -> A etc if_nc add x,#7The AND after the GETNIB is not required.
Also the #";" should be #":"
' convert nibble to ASCII hex char using only the C flag getnib x,value,#7 '\ either extracts only lower nibble or x,#"0" cmp x,#":" wc ' : -> A etc if_nc add x,#7[/quote]As for the AND, it’s an either GETNIB or AND, not both.
I've tested the switches, and they appear to work correctly. The measured voltages make sense.
Thanks evanh! That worked while programming with Spin 2 GUI. I get the program loaded up and apparently running. P56 blinks, although it doesn't show anything on the terminal yet.
Thanks! That worked well with PNut.
Kind regards, Samuel Lourenço
What could be the issue here?
Kind regards, Samuel Lourenço