Eval » Historie » Revision 5
Revision 4 (Maximilian Seesslen, 31.03.2022 13:51) → Revision 5/57 (Maximilian Seesslen, 31.03.2022 13:53)
h1. Eval
h2. Hardware
Display: WSH-12561; 37,32x31,8; 200x200Pixel; eval board funktioniert
Akku: 31063 (Garmin Fenix 3) 300mAh; 300 mAh; 31,6 x 24,8 x 4,3
h2. MCU
Pixel-data is 5KB ((200*200)/8); need bigger MCU; but the STM32L433CCU6 i have is too much
STM32L433CCU6: Too much
STM32L151C6U6A waers eigentlich. USB, -128KB Flash, 32KB SRAM-, EEPROM 32KB Flash, 10KB RAM, hat USB
STM32L051C8T6; no USB
STM32L053C8T6; 11,60Euro, whatt?
STM32L151C6U6A hab ich schon "hier":http://hase.seesslen.net/redmine/projects/hw-temprec/wiki/STM32#Warehouse. STM32L151CB gibts auch noch, wenn auch teure 12.15Euro.
Check the binary size.
Alphabet: 22 Zeichen * 8 Bytes= 176 Bytes. Display-Content 5000 Bytes.
32KByte koennten reichen.
4KByte EEPROM fuer Settings.
h2. Power
Lade-Chip: https://www.mouser.de/datasheet/2/268/MCP73871_Data_Sheet_DS20002090F-2932254.pdf
VCI wants 3V3. VDDIO may be less but is not specified. Reference schematics connects VDDIO directly to VCI.
Start with 3V3.
"ad_mcp73871" is getting manufactured. Lets see how it behaves on V_OUT.
h2. Hardware
Display: WSH-12561; 37,32x31,8; 200x200Pixel; eval board funktioniert
Akku: 31063 (Garmin Fenix 3) 300mAh; 300 mAh; 31,6 x 24,8 x 4,3
h2. MCU
Pixel-data is 5KB ((200*200)/8); need bigger MCU; but the STM32L433CCU6 i have is too much
STM32L433CCU6: Too much
STM32L151C6U6A waers eigentlich. USB, -128KB Flash, 32KB SRAM-, EEPROM 32KB Flash, 10KB RAM, hat USB
STM32L051C8T6; no USB
STM32L053C8T6; 11,60Euro, whatt?
STM32L151C6U6A hab ich schon "hier":http://hase.seesslen.net/redmine/projects/hw-temprec/wiki/STM32#Warehouse. STM32L151CB gibts auch noch, wenn auch teure 12.15Euro.
Check the binary size.
Alphabet: 22 Zeichen * 8 Bytes= 176 Bytes. Display-Content 5000 Bytes.
32KByte koennten reichen.
4KByte EEPROM fuer Settings.
h2. Power
Lade-Chip: https://www.mouser.de/datasheet/2/268/MCP73871_Data_Sheet_DS20002090F-2932254.pdf
VCI wants 3V3. VDDIO may be less but is not specified. Reference schematics connects VDDIO directly to VCI.
Start with 3V3.
"ad_mcp73871" is getting manufactured. Lets see how it behaves on V_OUT.