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15 Commits
Author SHA1 Message Date
René van Dorst 8b061d5fb9 SYS_TICK: Use Timer2 instead of Timer0. 
Downside of Timer0 is, we have to manually reload
the timer value. Timer2 can do that automaticly.
This saves a lot of time in the interrupt-handler
of the Timer.

Currently Timer2 is used for baudrate-generation
but in a separete commit this is moved to Timer1.
 2026-01-04 14:14:52 +01:00
René van Dorst 0abe83e3e5 sfr: add 16 bit SFR for the timer0. 
So we don't have to manual split 16-bit value into
for bytes.
Let the compiler do the work.
 2025-12-26 10:07:11 +01:00
logicog d4e2b9872d Cleanup of flash code 
Fix several bugs found in the write-flash code during installer coding.
Move all flash functions into CODE0. This is required to share these
functions with the installer image (currently they are duplicated so
they are not within the CODE1 segment).
De-magics all Flash command codes based on the Winbond W25Q32JV
datasheet.
 2025-09-26 21:00:47 +02:00
René van Dorst bcf4ae316c fix SFR_DATA_U16: must use sfr a6a7 not sfr a4a5! 2025-09-01 16:47:57 +02:00
René van Dorst b8928a8bcd Replace manual SFR_DATA_0 and SFR_DATA_8 pair read and write with SFR_DATA_U16. 
Also added SFR_SMI_REG_U16.

Doing pval = reg_h; pval <<= 8; pval |= reg_l; dont always optimized by the compiler a some places, not all.

A snipped of the diff between two .asm files.

5414,5424c5414,5416
< ;     rtlplayground.c:1382: uint16_t pval = SFR_DATA_8;
< ;     rtlplayground.c:1383: pval <<= 8;
<       mov     r7,_SFR_DATA_8
<       mov     r6,#0x00
< ;     rtlplayground.c:1384: pval |= SFR_DATA_0;
<       mov     r4,_SFR_DATA_0
<       mov     r5,#0x00
<       mov     a,r6
<       orl     ar4,a
<       mov     a,r7
<       orl     ar5,a
---
> ;     rtlplayground.c:1382: uint16_t pval = SFR_DATA_U16;
>       mov     r6,((_SFR_DATA_U16 >> 0) & 0xFF)
>       mov     r7,((_SFR_DATA_U16 >> 8) & 0xFF)
 2025-09-01 09:20:36 +02:00
René van Dorst 9dafeab490 Added SFR_NIC_DATA_U16LE and SFR_NIC_RING_U16LE. 
Let's use sfr16 for NIC data and ring.
SFR define can so reordered to it does the BE to LE swap for us.
 2025-09-01 09:20:36 +02:00
René van Dorst af0135bcce Add sfr16 SFR_REG_ADDR_U16. 
So instead do it manual split a uint16_t in to two uint8_t.
The compiler can do it, so reduces user error.
Note: compiler writes the lower/LSB part first.
      When that is importent this can´t be used.

Assembly is still the same except note above.
 2025-09-01 09:20:36 +02:00
logicog 2eaea39e18 Fix SFR address of trampoline return 2025-07-28 22:59:23 +02:00
logicog b59f51b3ca Cleanup of initialitation, make debug code conditional 2025-06-29 11:10:29 +02:00
logicog 73a0a7d137 Add banking support 2025-06-25 13:20:06 +02:00
logicog 2776df9ca8 Make RX of packets work 2025-06-21 16:18:19 +02:00
logicog 88067d3a3e Add command byte macros and NIC SFRs 2025-06-15 18:19:43 +02:00
logicog 98403e25d3 Add definitions for SFRs 0x93 and 0x94 2025-06-05 20:14:08 +02:00
logicog 73a6f0f311 Adding more flash functionality and image documentation 2025-05-14 20:40:44 +02:00
logicog c4835b7a6c Initial commit 2025-05-10 15:52:02 +02:00